| return True |
| def Push(item): |
| global queue, qstart, qend |
| if qend == len(queue): |
| return False |
| qend = qend + 1 |
| queue[qend] = item |
| return True |
| def Push(item): |
| global queue, qstart, qend |
| if qend == len(queue): |
| return False |
| qend = qend + 1 |
| queue[qend] = item |
| 1 | def Push(item): |
| 2 | global queue, qstart, qend |
| 3 | if qend == len(queue): |
| 4 | return False |
| 5 | queue[qend] = item |
| 6 | qend = qend + 1 |
| 7 | return True |
| global queue, qstart, qend |
| if qstart == qend: |
| queue[qstart] = None |
| item = queue[qstart] |
| return False |
| qstart = qstart + 1 |
| def Pop(): |
| return item |
| global queue, qstart, qend |
| if qstart == qend: |
| queue[qstart] = None |
| item = queue[qstart] |
| return False |
| qstart = qstart + 1 |
| def Pop(): |
| return item |
| 1 | def Pop(): |
| 2 | global queue, qstart, qend |
| 3 | if qstart == qend: |
| 4 | return False |
| 5 | item = queue[qstart] |
| 6 | queue[qstart] = None |
| 7 | qstart = qstart + 1 |
| 8 | return item |
| qend = qend + 1 |
| if qend == len(queue): |
| qend = 0 |
| queue[qend] = item |
| if qstart == -1: |
| def Push(item): |
| qstart = 0 |
| if qend == qstart: |
| return True |
| global queue, qstart, qend |
| return False |
| qend = qend + 1 |
| if qend == len(queue): |
| qend = 0 |
| queue[qend] = item |
| if qstart == -1: |
| def Push(item): |
| qstart = 0 |
| if qend == qstart: |
| return True |
| global queue, qstart, qend |
| return False |
| 1 | def Push(item): |
| 2 | global queue, qstart, qend |
| 3 | if qend == qstart: |
| 4 | return False |
| 5 | queue[qend] = item |
| 6 | qend = qend + 1 |
| 7 | if qstart == -1: |
| 8 | qstart = 0 |
| 9 | if qend == len(queue): |
| 10 | qend = 0 |
| 11 | return True |
| qstart = -1 |
| return item |
| global queue, qstart, qend |
| item = queue[qstart] |
| qstart = 0 |
| return False |
| def Pop(): |
| if qstart == len(queue): |
| if qstart == -1: |
| queue[qstart] = None |
| qend = 0 |
| if qstart == qend: |
| qstart = qstart + 1 |
| qstart = -1 |
| return item |
| global queue, qstart, qend |
| item = queue[qstart] |
| qstart = 0 |
| return False |
| def Pop(): |
| if qstart == len(queue): |
| if qstart == -1: |
| queue[qstart] = None |
| qend = 0 |
| if qstart == qend: |
| qstart = qstart + 1 |
| 1 | def Pop(): |
| 2 | global queue, qstart, qend |
| 3 | if qstart == -1: |
| 4 | return False |
| 5 | item = queue[qstart] |
| 6 | queue[qstart] = None |
| 7 | qstart = qstart + 1 |
| 8 | if qstart == qend: |
| 9 | qstart = -1 |
| 10 | qend = 0 |
| 11 | if qstart == len(queue): |
| 12 | qstart = 0 |
| 13 | return item |
| queue["end"] = queue["end"] + 1 |
| queue["list"][queue["end"]] = item |
| queue["end"] = 0 |
| if queue["end"] == queue["start"]: |
| queue["start"] = 0 |
| return False |
| if queue["start"] == -1: |
| if queue["end"] == len(queue["list"]): |
| return True |
| def Push(item): |
| queue["end"] = queue["end"] + 1 |
| queue["list"][queue["end"]] = item |
| queue["end"] = 0 |
| if queue["end"] == queue["start"]: |
| queue["start"] = 0 |
| return False |
| if queue["start"] == -1: |
| if queue["end"] == len(queue["list"]): |
| return True |
| def Push(item): |
| 1 | def Push(item): |
| 2 | if queue["end"] == queue["start"]: |
| 3 | return False |
| 4 | if queue["start"] == -1: |
| 5 | queue["start"] = 0 |
| 6 | |
| 7 | queue["list"][queue["end"]] = item |
| 8 | queue["end"] = queue["end"] + 1 |
| 9 | if queue["end"] == len(queue["list"]): |
| 10 | queue["end"] = 0 |
| 11 | return True |
| def Pop(): |
| queue["list"][queue["start"]] = None |
| return item |
| if queue["start"] == -1: |
| if queue["start"] == queue["end"]: |
| return False |
| queue["start"] = 0 |
| item = queue["list"][queue["start"]] |
| queue["start"] = queue["start"] + 1 |
| if queue["start"] == len(queue["list"]): |
| queue["end"] = 0 |
| queue["start"] = -1 |
| def Pop(): |
| queue["list"][queue["start"]] = None |
| return item |
| if queue["start"] == -1: |
| if queue["start"] == queue["end"]: |
| return False |
| queue["start"] = 0 |
| item = queue["list"][queue["start"]] |
| queue["start"] = queue["start"] + 1 |
| if queue["start"] == len(queue["list"]): |
| queue["end"] = 0 |
| queue["start"] = -1 |
| 1 | def Pop(): |
| 2 | if queue["start"] == -1: |
| 3 | return False |
| 4 | |
| 5 | item = queue["list"][queue["start"]] |
| 6 | queue["list"][queue["start"]] = None |
| 7 | queue["start"] = queue["start"] + 1 |
| 8 | |
| 9 | if queue["start"] == queue["end"]: |
| 10 | queue["start"] = -1 |
| 11 | queue["end"] = 0 |
| 12 | |
| 13 | if queue["start"] == len(queue["list"]): |
| 14 | queue["start"] = 0 |
| 15 | return item |
| 16 |
| back = back + 1 |
| return True |
| if back == len(stack): |
| def Push(item): |
| return False |
| global stack,back |
| stack[back] = item |
| back = back + 1 |
| return True |
| if back == len(stack): |
| def Push(item): |
| return False |
| global stack,back |
| stack[back] = item |
| 1 | def Push(item): |
| 2 | global stack,back |
| 3 | if back == len(stack): |
| 4 | return False |
| 5 | stack[back] = item |
| 6 | back = back + 1 |
| 7 | return True |
| def Pop(): |
| if back == 0: |
| return False |
| stack[back] = None |
| item = stack[back] |
| return item |
| global stack,back |
| back = back - 1 |
| def Pop(): |
| if back == 0: |
| return False |
| stack[back] = None |
| item = stack[back] |
| return item |
| global stack,back |
| back = back - 1 |
| 1 | def Pop(): |
| 2 | global stack,back |
| 3 | if back == 0: |
| 4 | return False |
| 5 | back = back - 1 |
| 6 | item = stack[back] |
| 7 | stack[back] = None |
| 8 | return item |
| def Push(item): |
| return False |
| stack["list"][stack["back"]] = item |
| if stack["back"] == len(stack["list"]): |
| stack["back"] = stack["back"] + 1 |
| return True |
| def Push(item): |
| return False |
| stack["list"][stack["back"]] = item |
| if stack["back"] == len(stack["list"]): |
| stack["back"] = stack["back"] + 1 |
| return True |
| 1 | def Push(item): |
| 2 | if stack["back"] == len(stack["list"]): |
| 3 | return False |
| 4 | stack["list"][stack["back"]] = item |
| 5 | stack["back"] = stack["back"] + 1 |
| 6 | return True |
| return False |
| if stack["back"] == 0: |
| stack["list"][stack["back"]] = None |
| item = stack["list"][stack["back"]] |
| stack["back"] = stack["back"] - 1 |
| return item |
| def Pop(): |
| return False |
| if stack["back"] == 0: |
| stack["list"][stack["back"]] = None |
| item = stack["list"][stack["back"]] |
| stack["back"] = stack["back"] - 1 |
| return item |
| def Pop(): |
| 1 | def Pop(): |
| 2 | if stack["back"] == 0: |
| 3 | return False |
| 4 | stack["back"] = stack["back"] - 1 |
| 5 | item = stack["list"][stack["back"]] |
| 6 | stack["list"][stack["back"]] = None |
| 7 | return item |