My Advent of Code solutions in Python.
kevinyap.ca/2019/12/going-fast-in-advent-of-code/
advent-of-code
python
Add 2017/19
+244
+41
2017/day19.py
+41
2017/day19.py
···
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import fileinput
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from utils import Point, DIRS
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DIAGRAM = {}
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for y, line in enumerate(fileinput.input()):
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for x, c in enumerate(line.strip('\n')):
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if y == 0 and c == '|':
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start = Point(x, y)
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DIAGRAM[Point(x, y)] = c
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d = 0
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pos = start
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steps = 0
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letters = []
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while True:
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tile = DIAGRAM.get(pos, ' ')
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if tile.isalpha():
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letters.append(tile)
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elif tile == '+':
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# Determine whether to turn left or right
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right_tile = DIAGRAM.get(pos + DIRS[(d + 1) % 4], ' ')
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if right_tile == ' ':
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d = (d - 1) % 4
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else:
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d = (d + 1) % 4
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elif tile == ' ':
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break
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pos = pos + DIRS[d]
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steps += 1
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print "Letters seen in path:", ''.join(letters)
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print "Total number of steps:", steps
+201
2017/inputs/19.txt
+201
2017/inputs/19.txt
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|
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+-------------------------------+ +-------------+ +-+ +---------------------+ +-------+ +-----------------------------------------+ +-----+
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| | | | | | | | | | | | | | |
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+-----+ +-----------------------------------|---+ | | | | +---+ +-----|---------------+ +---------------+ +-----+ +---|---------------------|-------+ +---|-+ +-+
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| | | | | | | | | | | | | | | | | | | | | | | | | | |
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+-|---+ +-----------------|---------------|---+ | +---------|-|-+ | +---|---|---------------------+ +---+ | | | +-|-----|-|---|-----------------+ +---------|-------|-+
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | +-----------------|-------------------|-----|-|---------|-------|---+ | | +-----------|-----|-----------+ | | | | +---+ +-----|-|---+
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| +-------------------|---------------|-----------|-----------|-+ | +-------------------------|---+ +-|---------|---------|-|-----|-----------|-----------------------------------|-|-+ |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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+-+ | +---+ +-----------------------------------|---------------------+ +---------------------------|-----------|---|-----------------------------------|-------+ | +---------+ | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | +-----------------------------------|---------------|-------------|-----------|-----------+ | | | | | | +---|-|-----|-----------+ | +---------------------+ | | |
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| | | | | | +-----------------|-----------------|-|-|-----------|-----------|-----|---|-----|-|---+ | +-|---|-------|-------|---+ +---|---|-+ +-----|-----------|---|-+ |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | +---|---|---------------------------+ | | | | | +---------|-|---+ | | | | | | | | | +-+ | | +---|---|------P|-+ | | | | +-+ | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | +-|---|-|---------------|---------|---------|-+ | | | +---|-----|-------|-----------|-----+ +---------------------|-------------|-----------|-------|-----+ | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | +-------------------|---------|---------|-|-+ | | | | | | | | | | | | | | | | +-|-----|---|-------------------------+ +-|---+ +-+
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | +-----|---------------------|-+ | | | | +-|-------------|-----+ | | | | | | | | | +-----------|---|---+ | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Y | | | | | | | | |
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| | | | | | | | +---+ +-----------|-|-------+ | | | +-----|---|-----|-----------------------------+ +---------------|-----|---------------|-------+ | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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+-|-|-----|---|-------------|-|-|-------|-|---|-----|---|-------------|-|---+ +---------|-----|-----------------------+ +-----|-----------|---|-------+ +-----+ | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-------|-------------|---+ +-------------|-|-|-+ | | | | | |
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+-----|-|-----|-|-------|-|-----------------|-------------|-|-----+ | +---+ +-------------------------------------|V----------------|-----------|---------------------------|---------------|-----+
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| | | | | | | | +-----------|-+ | | | | | | | | | | +-|-----|---------|-----|-----------+ | | +-|---------------------------------|-|-+ | | | | +-------+
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| +-|-|---|-|-|-------|---|---|-----|-----|-|---+ +-----|-|-----|-|-+ | | | | | | | | +---+ | | | | | | | | | | | | | | |
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| +-|-----|---|-|----Q----|-----+ | U +-----|-------|-----|-|-------|---|---+ | | | | | | | +-----|-|-----------------------------------|---------|---------|-----+ |
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| | | | | | | | | | | | | +-------------------|-----|-|-----------|-|-----------------------|---------|-------------|---------------------|-----------+ | | | | | | | | | | |
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| | | | | +-|-------+ | | | +-|-----|---|-|---------|---|-|-----|-+ | | +-|---|-----|-----------+ | | | | | | | | | | | | | +-|-|-------+ | | | |
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| | | | | | | | | | | +---------|-------|-----|-----------------------|---------|---------+ | | | +-----|-----+ | | | | | +-+ | | | | | | | | |
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| +-|-|---|-------------------------+ | | | | | | | | | | | | | +-------|-----|---|-+ | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----------|-----------|-----------+ | +-------------------+ | | | | | | | | |
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| | | | | | | | | | | | | | | | | +---|---+ | | | | | | | | | | | | | | | | | +-----|-------------|---+ | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | +---|-|-|-|---------------------|-|-------------------|-+ | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | +-|-----|-------------|-----|-|-----------|-----|---+ +-----|---------------------|---|-------+ | | | | | | | | | | | | |
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| | | | | | +---+ | | | | | | | | | | | | +-|-----+ | | | | | | | | | | | | | | | | | | | | | | | |
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| | +-+ | | +-|-----------|---------|-|---|---|-------------------|-------|-----------|-----|---|-----------|-------------+ | +-------|-|-----|-----|-------|-----------|-|-----------+ | |
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| | | | | | | | | | +-|---|-----|---------+ +-+ | | +-|-----------|----B--------|-+ | | | +-+ | +---+ | +-|-|---+ | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | +-----------|-----|---|-|-+ | | | +-----|-------------|-|---------|-----|---|-----------|-+ | | +-|-+ | | | | | | | | | | | | |
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| | | | | | | | | | | +---|-----|---------|---------------------------|-----------|---|-----------+ | | | | | | | | | | | | | | | |
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| | | | | | | | | +---|-----|---------------+ | | | | | | | | +-|-----|---------|-|-------|---|-|-|-----|---|---+ | | | |
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| | | | | | | | | | | | | | | +-------|-|-------|-----+ | +-----------|---|---------|-------|---------|-----|-------|-|-|-----|---|-|-+ | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | +-----------|---|---------|-|-----|-+ | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | +---|-----------------|-|-+ | | | | +---|-+ +---------|-------------------------|---+ | | | | | | | | | | | | | | | | | | | |
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| | | | | | +-+ | +-|---------|---------|-----------------------------|-----|---------------|-------------|-|-----------------+ +-|---|-------|---+ | | | | | | | | |
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| | | | | +---|-----|---|-----+ | +---|-------|-----|-------|-|---------|---------------------|---|---------|---------------------------|---|-|-|---|---------------|---+ +-+ | | |
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| | | | | +-----+ +-+ | | | | | | | | | | | | +-----|-|-----+ | | | | +-|-----------|---------------|-------------------------|-----|-|---+ | | | | | | | | | | | |
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| +-+ | | | +---------|---|-|---+ | | | | | | +-|-------+ | | | | | | | | | | | | +-----+ | | | +-|-----------+ | | | | | | | | |
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| | | | | | | | | | | | | | | | | +---------------|-|-|---|-----|-----------------------------------------------|-|---|---------------|---|-----+ | | | | | | |
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| | | | | | +-|-|---------|-----------------|-------------------|-|---|-----------------|---|---------|---------+ | | | | | | | | | | | | | | | | | | |
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| | +-----|-----|-------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---|-|-|---|-------|-+ | | | | | |
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| | +---------|-----|-|---|---|-------|-|-----------|-----------------------|-----|-|---------------|-------------|-----------|---------|-------------------|-------|---|---|-|---|-|---|-----+
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+-+ | | | | | | | | | | +-------+ | | | | +-----|-------+ | | | | | | | | | +-----------|---|-----------|-|-+ +-+ | | | | | | | | | | |
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+-----+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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+-----|-|-------|-------------------|-|-------|-----------|-|---|---------------------|-----|---|-------------------------|---------|---+ | | | | | | | | | | | | +-----------+ |
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| | | | | | | | | | | | | +-|-|---------|-----------|---|---|---------------------|-------------------+ | +-+ | | | +-----------|-+ | | | | | | | | | | | |
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+-----|-----|-----------------|-----|---------|-------------|---------------------|---|-+ +-|-|-------------|-------------|-------------|-|-----+ | | | | | | | | | | | | | | | | | | |
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| +-------+ | | | | | | | | | | | | | | | | | | | +---|---|-----------|---|-------+ | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | +---------------|---|-----|-------------+ | | | | | | | | | | | | | | |
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| | | | | | | +-|-----|---|-------|---------|---|---|---|-------|-----|-----------|-------------------------------+ | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | +---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| +-|-|-------|-----+ | | | | | | | | | | | +-----|---+ | | | | | | | | | | | +-|-----------|---|---|-|---|-|---------|-|-----|-|-+ | | | |
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| | | | | | | | | | | | | | | | | | | +---|-|-+ | | | | | | | | | +-------|---|---------+ | +---+ | | | | +-----|-+ | | | | | | | | |
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| | | | | | | +-----|---|-|-|-|---------------|-----|-|-------|-----|-|-|-------|-----|-----------------------------+ | | | | | | +-----|-+ | | | | +-+ | | | | | | | |
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| | | | | | | | | +---|-|-|-------------------|-|-|-------|-------|---------|-------|-|---------------|-------------|-|---------------------+ | | | | | | +-----|-------+ | | | | | |
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| | | | | | +---------|-----|---|-|-------+ | | | | +-+ | +---|-|-+ +---------|-|-|-----------|---+ | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | +-------------|-------+ +-------------------+ | | | +-------|---|-|-------+ | | | | | | | | |
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| | | | | | | | | | | | F | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | +---+ | | | | | +-----|---|---------------------------------------|---------|---+ +-|-----------|-----+ | +-+ | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | A | | | | | | | | | | | | | | | | | | | | | |
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+---|-|-+ | | +---------|---|---|---+ | | | | | | | | | | | | | | +-----------------------------------------+ | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | +-----------|-+ +-|-|-|-|-|---------------------|-------|-|-|-----------|---|-----|-|---------|---|-----------------|---------|---------------|-----|---|---------------|-----|-|-+ | | | | |
139
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
140
+
+-------|-|-|-------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
141
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
142
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | +---------------+ | | | | | | | | | | | | | | | | | |
143
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
144
+
| | | | | | | | | | | | | | | +-------------|-----------------|-----------|---|-----|-|---------|-------------------------+ | | | | | | | | | | | | | | | | |
145
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
146
+
| | | | | | | +-|-+ | | | | | | | | | | | | | | | | | | | | | | +---|-------------------|-|-----|---|-------------|-|-----|-----+ | | | |
147
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
148
+
| | | | | | +-|---|-+ | | | | | | | | | | | | | | +-+ | | | | | | | | +---------|-----|-----|---|-----|-------|-------|-|---+ | | | |
149
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
150
+
+---|---+ | | | | | | +-+ | | | | | | | | | | | | | | | | | | | | | | | +-|-----|---+ +-----------+ | | | | | | | | | |
151
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
152
+
+---+ +---|-+ | | | | | | | | | | +---------|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
153
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
154
+
+-------|---------|---------|-|---|-|-----|-----------|-----------|---|--W------------|---------------------|-----|-------------+ | | | | | | | | | | | | | | | | | | |
155
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
156
+
| | | | +---|-|---|-----|-+ | | | +---+ | | | | | +-|---------------------|---|-------|-----------------------------------------|-----|---------|-----|-|-----|-----|---|-------|-+ |
157
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
158
+
| | | +-|-----|---+ | | +-----|---|---|-|---------|---|-----+ | +-+ | | | | | | | | | | | | | | | | | | +-----+ | | | | +-|-|-+ |
159
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
160
+
| | | | | | | | +---------|-+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
161
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
162
+
| | | | | | | | | | | | | | | | | | +---|-+ | | | | | | | | | | | +-----|-----|-|---|-----------+ | | | | | | | |
163
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
164
+
| | +---|-----|-------|---|---|---|-|-|-+ | | | | | +---|-----|-----|-----------------|---|-----|-------------|---------------------|-----------|-------------------|---|-----+ | | |
165
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
166
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
167
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
168
+
+-------------------|-|-+ | | | | | | | | | | | +---------|---------------|-------|---------|-------------+ +-------+ +-|-+ | | | | | +-|-|-------|-+ |
169
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
170
+
| | | +-|-|-+ | | | | | | | | | | | +-------|---------------------|-----------|-----|-------------------------------+ | | | | | | | | +-+ |
171
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
172
+
| | | +-|-|---------|-----+ | | | | | | | +-------------|-------|-------------|-----|-----------------------------------|-|---------|-----------------------|-+ | |
173
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
174
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | +-----|-----|-------------------+ | | | | |
175
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
176
+
| +-------+ | | | +-----|-|-|-|---------------|---|---+ +---------------|-----+ +---------|---+ | | | | | | | | | | | |
177
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
178
+
| | | | | | | | +-+ | | | +---+ +-----|-----------|---------|-----------------|-------------------------------+ | | | | | | | | | | |
179
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
180
+
| | | | | | | | | | | | | | | | | | | | | | | | | | +-|-|-------+ | |
181
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
182
+
| | | | | | | | | | +-----------|-|-------|-----|---------+ | | +-------------|-----|-------------------------|-|-|-+ | | | +-+
183
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
184
+
+-----+ +---+ +-------------------|-----------------+ | +-|-+ +-------------------------------+ | | +-------------------|---------------|---+ | | |
185
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
186
+
| | +---------|-|-----------|-----------------------------------+ +-----|-----------------------------------------------------------|-|-------------|-----------------|-+ | | | +---+
187
+
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
188
+
| | +-----|---|-------------|-----------------------------------------------|---------------------------|-----------------|---------|---|-+ | | +-----------------|-+ | | | | |
189
+
| | | | | | | | | | | | | | | | | | | | | | | | | |
190
+
+-----------+ +-----+ | | | +-+ +-----------|-----------|-----------------------------------------------+ | +---+ | +-----------------------------|-+ | | |
191
+
| | | | | | | | | | | | | | | | | |
192
+
+-------|---|-----------+ | | | | | | +-------------------------+ +-------------------+ +-+ | | | | | |
193
+
| | | | | | | | | | | | | | | | | |
194
+
| | | | | | +---------------------------------------------------------------------------------------------------+ | | | | | | |
195
+
| | | | | | | | | | | | | | | |
196
+
+-------|---+ | +--------------------------------T|-------------------------------------------|-----------------------------------------------------------------|-|-----|-------+ |
197
+
| | | | | | | | | | | |
198
+
+-----------------------------------------------------------|---------------------------------------------------------------------------------------|-------------------+ +-+ +-----+ |
199
+
| | | | | | | |
200
+
+---------------+ +-+ +-------------------------------------------+ +---------------------+
201
+