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[2017][ruby][19.x] speedrun

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sorbet
Alpha Chen 7 years ago
parent 7b82b90b4c
commit f1fcda6e4b
2 changed files with 238 additions and 0 deletions
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2017/input/day_19.txt
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+---------------------------------------------------------------------------+ +---------------------+ +---+ +-------------------------------------+
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+---------------+ +---------------+ +-------|-------------------------------------+ | | | | +-----------+ +-----+
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+---+ | | +-------+ | | +-----------------------------|-------------------------------------------|-----------+ | | | | | | +-----------+
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+-----------+ | +-|-----------|-----------+ | +---+ | | | +-----------------------|-|---------------|-------|-----------|-----------------------+ |
| | | | | | | | | | | | | | | | | M | | | | | | | | |
| | | +-|-----------|---------------------|-----+ | | | | | +---------+ +-+ +---------------|-----------|---------------+ | +-+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | +-------------------------|---------------|---------------|-------|-------+ | | +-----+ +-----+ | | | | | | | +---+ +-+ | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---|-+ | +---+ | +---------------------------------------|-------------|---------------------------|-----|-|---|-------|---------------------|-|-|---------+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---+ | | | | | | | | +-------|-------|-------|---|-|-----|---------------|-----------|-------------|-|-----------|---|-|-|-|---+ | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | +-----------------------------|---------------------|---|-|-------------------|-|-----------|---|-|-|-|-------|-|---+
| | | | C | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-|---|-----|-|-----------|-------|-----------------------------|-------------+ | | | | | | +-------------|-|---|-|-|---|---+ | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-|---|-----|-------------|-------|-----------------------------|---------------|-------------------|-------|-----|---------|---|-+ | | | | | | | | | +-|---|---|-----|-+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +---+ | | | | | | | | +-+ | +---------------------|---+ | | | | | | | +-|-----|-|-------------|-----------+ | | | | | | | | +---+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | P |
| | | | | | | | | | | | | +-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | +---|-+ | +---|-|-----|-----------|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | +---|---------+ | | +---|-|-|---|---------|-----------|-+ +-+ | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | +-------+ | | | | | | | | | | +-------+ | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---|---|---|---------|-----+ +-----|-|-----|-------------------|-----|-------------|-|-------|-----------|-|-----|-------------------|-------|---------|---|-----------|-----------+ | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-------+ | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | +---+ | | | | | | | | | | | | | | | | | | | | | | | +-|-+ Y +-|-|-----+ | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | +-+ | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | +-|-------|-----|-|-----|-------------------|-------------|---------------|---------------------|-----|-|---------|-|---|-|-|-------|---|-------+ | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | +-----|---------|-------------|---------------|---|---|-|-|-----|-+ | | +-------|-+ +---|---|-------+ | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | +-------------------|-------|-------------|---+ | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | +-|-------------------|---|-----+ | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | +-----|-----|---------|-------|---|-|-------------------|---------------------------------------------|-|-----|---+ | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-|-+ | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | +-----|---|-|-|-----|-----|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | +-------|-|-----|-----|-+ | | +---+ | +---------|-------|---------|-|---|-----|-|-|-+ | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | +---|-|---------------|-|---|-|-----|-------------|-+ | | | +-----------|-------------|---------+ | | | | | +-----+ | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | +-------|---------------------------|---|-------|---+ +-------|---+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | +-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | +-----|---------------|-|-----------|-|-----|-----|-|---|---|-----------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | Q | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----+ | | | | | | | | | +-+ | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +-----------|---|---------|-|-----------------------+ | | | | | | | | | | | | | | | | +---------------------|-|-|-----------|----------E------+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | +---------|-|---|-----------|-|-|---+ | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | +---|-------|---|-+ | | +-|-------------|-|-----------|-----|---|-----+ | | +-+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | +-----------------|-|---|-----|-----------|---|-|---------------|-----|-------------------|-|-|-----|---------------+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | +---|-|---|-------|---|-----|---|-----------|---------------|-----|-------|---|-----|-----------------+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | +-------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | +---------------|-+ | | +-|-|-------------------|-----------|-----|-|-|-|---------------|-|-----------|-----|-|-|---------------------|-------------|-|-|-|-----|-|-+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | +-|---+ | | | | | | | | | | | | | | | +-|---|-----+ | +---|---|-|---+ | | | +-------|-|-------|---|-|---|-------|-----+ | +-------|-----+ | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-+ | | | | | | | | | | +-----------|-|-|---|---|-------|---|---|---------------|-|-|---------+ | | +-|---|---------|-|-----------|-------|-------|-----|-----|-----|---+ | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-------|-|-+ | |
| | | | | | | | | | | | | | | | | | | | | | H | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | +-|---|-----+ | | | | | | | | | | | | | | | | +-|-------|---|-|-----------|-----------|-|---+ | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----|-|-------|-|-----|---|-----|-------------------|-------|-+ | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-|-----+ | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | +---|-|---|-|---|-----------|---|-----|-|---------|---|-------------|-|-----|-----|-------|-------|-------|---|---|-|-|-|-----------------------------------|-------------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | +-|-------|---+ | | | | | | | | | | | | | | | | | | | | | | | | | +-----|-+ | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | +-------|---|-------|---------------|-|---------|-----|---|-----------|---|-|-|-|-----------------------------|-------|-|---------+ | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | +-+ | | | | | +---|-----|-----------------|-|-------+ | | | | | | | +-|-------+ | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---|---|-------|-|---|-----------------+ | | | | +---+ | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | +-------|-|-|-|-------|---------|-|-------------|-|---|-|-----|-|-------------------|-------|-|-------|-------------+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | +-----+ | | | | | | | | | | | | +---------|-----+ | +-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | +-|-----------|---|-|---|-------+ +-------|-----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-|-----+ | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | +---|-|---------|-|---------------+ | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | +---|---------|---|---------------|---|---|-----|---------|-------|---------------------|---|-------|-|-|-----+ | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | +-|-+ | | | | | | | | | | | | | | | | | | | | | | | | +-|---------|-------------------|-----------|---|-----|-------|-----|---------|-+ | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----|-----+ | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-|---|-|---|-|-----|---|-|---|-|-+ +---|-+ | | | | | | | +-------|-----+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---+ | | | | | | | | | | | | | | | | | | | | | | | | | +---|-----|-------|-|-----------------|-|-|-|-|---|-|---|-|-|-|-------------------|-------|---|-----+ | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +-----|---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-------|---------|-------|-|-|-------|-----|-|-|-|---------|-----|-----+ | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | +-|-+ | +-------------|---|---|---------|-------------|-|---------|-------|---|-|-|-------|-|-|---------|-------|-|---|-----------|-----+ | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | +-----|-----|---------|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | +-------|-----------|-------|-|-------|-----+ | | | | | +---|-|-|---|-|-|-+ | | | | | | | | | | | | | | | |
| | | | | | | | | | | S | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | +---|-------|---------------------------------|---------|-----------------|---|-|---|-|---+ | | | +---------|-----|---------+ | | | | +-|-+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+-----|-|---|-|---|-----------|-----|-|---|-----|---------|---+ | | | | | +-------|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | +---|-----|---------|-----|---|-|-|-|-----|-------|-------|---|-----|-------+ +-|-|-------|-|---------------------|-|-|-------------------|-|-+ | | +-|---+ | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+-------------|-|-|-|-----|---------|-----|-|-----|-|---------------------|---|-----|---------|-|-|-|-------|---------+ | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-|-----|-|---|-|-----|---------------|---|---|---|---|-------|-------|-------|-----+ | | | | | | | | | | | | | +---|-+ | | | | | | | | | | | | | +-+ | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---|---|-|-----------|---|-------|-------|---+ | | | | +-----------------------|---|-------|---+ +---------------|-----+ | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +---+ | +-|---|-+ +-----|-----|-+ +-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +-|-----------|-|---|---+ | +-------|-+ | | | | | | | | | +---|-+ | | | | | | +-|-|-----|-----+ | | | | +---+ | +-+ | +-+ | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-----|-|V------|-|---|-|---------|-|-------|-----|-----------------|-------------------------|---------|-----|---------------------------+ | | | | +-|-+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-|-|-----|-|-|-|---------------------|-|-------|---------------|---|-------|-------------|---------|-|-----------+ | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-----+ | | | | | | +---|-----------|-|---------------|-------|---|-|-----------------------|---|-----------------|-----|-------|-|---|-|---|---+ | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---------|-|---|-|-|-----------------|-|-------------------|-------|---|-------------------|---------|---------------------|-|-----|-------|---|-|---|-------------------|-|-----|---|-|-----+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| +-|-----|-----+ +---|---|-----------------|---+ | | | | | | | | | | | | | +-----------+ | | | | | | | | | | +-|---|-----|-----+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+-|-|-----|---------|-|-+ | +-----|-|-+ | | | | | | | | | | | | | +-----------|---+ | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+---------|---------|-|-----------------|-+ | | | +---|-------|---|---|---|---------------+ | | | | | +-|-------+ | | | | | | | | +---------------------|-+ | +-----+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | +---|---------+ +-+ | | | | | +---------|---------------+ | +-|---------------|-------|-----|---------------|-|-----|-------|-------|---------------------|-|---+ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | +---+ | | +---|-----------|---|-----------|-----------|-|---------|-|-----------|-----------|-|---|-|-------------------------|-----|-------------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | +-------|-|-+ | | | | | | | | | | | | | +-----------|-----+ | +---+ | | | | | | | +---------------------+ +-------|-------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | +-----|-----|-+ | | +-|-----------|---|-----------------|---+ | | | +-----+ | +-------|-----------+ | | | | | +-------------|-------------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | +---------|---|---|---|-------|-|-|-----------|-|-|---------|-------------------+ | +---|-------------+ +-------------|-----+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | +-----------|-----|-----------+ | | +-----|-|-|-------------------------|-----------+ +-|-|-|-------------+ |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---------------------|-----|-------|-|---------|-----|-----------|-|-----|---|-+ +-------+ | +-|-|-+ | | | +---------------------------------+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +-|-|---------|---|-------|---------|---|-|---------------|-------|---------|---------|-|-|-|---------|---------------------|-------|---------+ | | +-+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | +-------|-----|-----------|---|---|---+ | | | | | | +-+ +---------|---------------+ | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | +---+ | | | | | | | | | | | | | +---------|-|-|-------|---------+ | | +---------|-----+ +-+ | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | +---------|-+ | | | | | +-----+ | +-----|-------+ +-+ +---------------+ | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | +---------|-------|---------|---|---|-----|-----------|---------------------------------------------|-------+ +-------------------------------------|---------------+
| | | | | | | | | | | | | | | | | | | | | | | |
| | | +---------+ | +-------------|-----------|---------|---|-------------|-------------------------------------------------+ | | | | |
| | | | | | | | | | | | | | | | | | | |
| | | | +---------+ +---------|---+ +---|---------+ +-+ +---------------------------------------------+ | | | | |
| | | | | | | | | | | | | | | | | |
+-+ +-------------------------|-----------+ +-+ +---|---+ | +---------------------------------------------------------------+ +-----+ | +-------------+
| | | | | |
+-----+ +-------+ +--------------------------------------------B----------------------------------------------------------------------+

36
2017/ruby/day_19.rb
Unescape View File

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diagram = ARGF.read.split("\n").map(&:chars)
dir = [0, 1]
y = 0
x = diagram[y].index(?|)
begin
steps = 0
loop do
case diagram[y][x]
when ?+
dir = if dir[0] == 0 # going vertically
if (diagram[y][x-1] || " ") != " "
[-1, 0]
else
[1, 0]
end
else # going horizontally
if (diagram[y-1][x] || " ") != " "
[0, -1]
else
[0, 1]
end
end
when /[a-z]/i
# print diagram[y][x]
when /\||\+|-/
else
raise diagram[y][x]
end
x,y = [x,y].zip(dir).map {|a,b| a + b}
steps += 1
end
rescue
puts steps
end
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