結果
問題 | No.1393 Median of Walk |
ユーザー | chineristAC |
提出日時 | 2020-11-12 01:34:26 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 1,656 bytes |
コンパイル時間 | 196 ms |
コンパイル使用メモリ | 82,232 KB |
実行使用メモリ | 78,116 KB |
最終ジャッジ日時 | 2024-07-19 22:46:48 |
合計ジャッジ時間 | 4,723 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | RE | - |
testcase_01 | RE | - |
testcase_02 | RE | - |
testcase_03 | RE | - |
testcase_04 | RE | - |
testcase_05 | RE | - |
testcase_06 | RE | - |
testcase_07 | RE | - |
testcase_08 | RE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | RE | - |
testcase_22 | RE | - |
testcase_23 | RE | - |
testcase_24 | RE | - |
testcase_25 | RE | - |
testcase_26 | RE | - |
testcase_27 | RE | - |
testcase_28 | RE | - |
testcase_29 | RE | - |
testcase_30 | RE | - |
testcase_31 | RE | - |
testcase_32 | RE | - |
testcase_33 | RE | - |
testcase_34 | RE | - |
testcase_35 | RE | - |
testcase_36 | RE | - |
testcase_37 | RE | - |
testcase_38 | RE | - |
testcase_39 | RE | - |
testcase_40 | RE | - |
testcase_41 | RE | - |
ソースコード
import sys input = sys.stdin.readline N,M = map(int,input().split()) edge = [tuple(map(int,input().split())) for i in range(M)] assert 2<=N<=100 assert 1<=M<=N*(N-1)//2 assert len(edge)==M check = set([]) for u,v,c in edge: assert 1<=u<=N and 1<=v<=N assert u!=v assert 1<=c<=10**9 assert (u,v) not in check check.add((u,v)) cost = [[10**18 for j in range(N)] for i in range(N)] for i in range(N): cost[i][i] = 0 for u,v,c in edge: cost[u-1][v-1] = 1 for k in range(N): for i in range(N): for j in range(N): if cost[i][j] > cost[i][k] + cost[k][j]: cost[i][j] = cost[i][k] + cost[k][j] edge.sort(key=lambda x:x[2]) ans = [[-1 for j in range(N)] for i in range(N)] S = set([]) for u,v,c in edge: for i in range(N): for j in range(N): if abs(cost[i][u-1])!=10**18 and abs(cost[v-1][j])!=10**18 and cost[i][j] > cost[i][u-1] + cost[v-1][j] - 1: cost[i][j] = cost[i][u-1] + cost[v-1][j] - 1 if cost[i][j] <=0 and ans[i][j]==-1: ans[i][j] = c for k in range(N): if cost[k][k] < 0 and k not in S: S.add(k) for i in range(N): for j in range(N): if cost[i][k]!=10**18 and cost[k][j]!=10**18: cost[i][j] = -10**18 if ans[i][j]==-1: ans[i][j] = c Q = int(input()) assert 1<=Q<=N*(N-1) res = [-1 for i in range(Q)] for i in range(Q): s,t = map(int,input().split()) assert 1<=s<=N and 1<=t<=N assert s!=t res[i] = ans[s-1][t-1] print(*res,sep="\n")