Submission #3979783
Source Code Expand
def warshall_floyd(v_count: int, matrix: list) -> list: """ ワーシャルフロイド :param v_count: 頂点数 :param matrix: 隣接行列(到達不能はfloat("inf")) """ # 到達不能をfloat("inf")にしておけば余計なチェックを入れなくても # inf > inf+(-1) のような到達不能+負辺が繋がってしまうことはない for i in range(v_count): for j, c2 in enumerate(row[i] for row in matrix): for k, (c1, c3) in enumerate(zip(matrix[j], matrix[i])): if c1 > c2+c3: matrix[j][k] = c2+c3 return matrix if __name__ == "__main__": import sys N, M = map(int, input().split()) inf = float("inf") matrix = [[inf]*N for _ in [0]*N] for i in range(N): matrix[i][i] = 0 for a, b, t in (map(int, l.split()) for l in sys.stdin): matrix[a-1][b-1] = matrix[b-1][a-1] = t matrix = warshall_floyd(N, matrix) print(min(max(row) for row in matrix))
Submission Info
Submission Time | |
---|---|
Task | D - バスと避けられない運命 |
User | odanny |
Language | Python (3.4.3) |
Score | 100 |
Code Size | 1040 Byte |
Status | AC |
Exec Time | 2991 ms |
Memory | 6564 KB |
Judge Result
Set Name | All | ||
---|---|---|---|
Score / Max Score | 100 / 100 | ||
Status |
|
Set Name | Test Cases |
---|---|
All | sample_01.txt, sample_02.txt, sample_03.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt, test_18.txt, test_19.txt, test_20.txt, test_21.txt, test_22.txt, test_23.txt, test_24.txt, test_25.txt, test_26.txt, test_27.txt, test_28.txt, test_29.txt, test_30.txt, test_31.txt, test_32.txt, test_33.txt, test_34.txt, test_35.txt, test_36.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 18 ms | 3064 KB |
sample_02.txt | AC | 18 ms | 3064 KB |
sample_03.txt | AC | 18 ms | 3064 KB |
test_01.txt | AC | 18 ms | 3064 KB |
test_02.txt | AC | 2991 ms | 6500 KB |
test_03.txt | AC | 2640 ms | 5172 KB |
test_04.txt | AC | 1011 ms | 4656 KB |
test_05.txt | AC | 788 ms | 3940 KB |
test_06.txt | AC | 88 ms | 3188 KB |
test_07.txt | AC | 1884 ms | 4800 KB |
test_08.txt | AC | 22 ms | 3064 KB |
test_09.txt | AC | 532 ms | 3680 KB |
test_10.txt | AC | 76 ms | 3188 KB |
test_11.txt | AC | 87 ms | 3188 KB |
test_12.txt | AC | 1451 ms | 5032 KB |
test_13.txt | AC | 92 ms | 3188 KB |
test_14.txt | AC | 131 ms | 3188 KB |
test_15.txt | AC | 1712 ms | 4680 KB |
test_16.txt | AC | 149 ms | 3316 KB |
test_17.txt | AC | 601 ms | 3800 KB |
test_18.txt | AC | 1288 ms | 4892 KB |
test_19.txt | AC | 162 ms | 3316 KB |
test_20.txt | AC | 140 ms | 3316 KB |
test_21.txt | AC | 19 ms | 3064 KB |
test_22.txt | AC | 440 ms | 3784 KB |
test_23.txt | AC | 20 ms | 3064 KB |
test_24.txt | AC | 2861 ms | 6508 KB |
test_25.txt | AC | 2886 ms | 6540 KB |
test_26.txt | AC | 632 ms | 4312 KB |
test_27.txt | AC | 835 ms | 4528 KB |
test_28.txt | AC | 2860 ms | 6552 KB |
test_29.txt | AC | 2851 ms | 6564 KB |
test_30.txt | AC | 138 ms | 3432 KB |
test_31.txt | AC | 27 ms | 3064 KB |
test_32.txt | AC | 2899 ms | 6564 KB |
test_33.txt | AC | 2861 ms | 6528 KB |
test_34.txt | AC | 58 ms | 3188 KB |
test_35.txt | AC | 498 ms | 4072 KB |
test_36.txt | AC | 2875 ms | 6560 KB |