結果
問題 | No.1690 Power Grid |
ユーザー | neterukun |
提出日時 | 2021-09-24 22:15:41 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 2,912 ms / 3,000 ms |
コード長 | 1,466 bytes |
コンパイル時間 | 147 ms |
コンパイル使用メモリ | 82,284 KB |
実行使用メモリ | 152,704 KB |
最終ジャッジ日時 | 2024-07-05 10:47:18 |
合計ジャッジ時間 | 38,581 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | AC | 38 ms
52,352 KB |
testcase_01 | AC | 37 ms
53,120 KB |
testcase_02 | AC | 59 ms
72,064 KB |
testcase_03 | AC | 35 ms
51,840 KB |
testcase_04 | AC | 34 ms
52,608 KB |
testcase_05 | AC | 34 ms
52,300 KB |
testcase_06 | AC | 1,956 ms
134,000 KB |
testcase_07 | AC | 1,928 ms
133,988 KB |
testcase_08 | AC | 1,950 ms
133,824 KB |
testcase_09 | AC | 1,948 ms
133,928 KB |
testcase_10 | AC | 1,328 ms
119,312 KB |
testcase_11 | AC | 2,730 ms
150,556 KB |
testcase_12 | AC | 36 ms
53,500 KB |
testcase_13 | AC | 69 ms
76,772 KB |
testcase_14 | AC | 281 ms
83,040 KB |
testcase_15 | AC | 2,912 ms
152,704 KB |
testcase_16 | AC | 2,021 ms
134,052 KB |
testcase_17 | AC | 1,005 ms
104,208 KB |
testcase_18 | AC | 511 ms
89,540 KB |
testcase_19 | AC | 2,036 ms
133,796 KB |
testcase_20 | AC | 2,009 ms
133,944 KB |
testcase_21 | AC | 1,263 ms
117,076 KB |
testcase_22 | AC | 2,408 ms
142,076 KB |
testcase_23 | AC | 2,905 ms
152,624 KB |
testcase_24 | AC | 2,590 ms
146,464 KB |
testcase_25 | AC | 2,707 ms
148,684 KB |
testcase_26 | AC | 2,789 ms
150,416 KB |
testcase_27 | AC | 34 ms
52,736 KB |
ソースコード
INF = 10 ** 18 def warshall_floyd(matrix): n = len(matrix) dist = [[d for d in row] for row in matrix] for k in range(n): for i in range(n): for j in range(n): dist[i][j] = min(dist[i][j], dist[i][k] + dist[k][j]) return dist def cost(state, v): res = INF for nxt_v in range(n): if state & (1 << nxt_v): res = min(res, dist[v][nxt_v]) if res == INF: return 0 else: return res n, m, k = map(int, input().split()) a = list(map(int, input().split())) edges = [list(map(int, input().split())) for i in range(m)] matrix = [[INF] * n for i in range(n)] for i in range(n): matrix[i][i] = 0 for u, v, c in edges: u -= 1 v -= 1 matrix[u][v] = c matrix[v][u] = c dist = warshall_floyd(matrix) costs = [[INF] * (1 << n) for i in range(n)] for v in range(n): for bit_state in range(1 << n): costs[v][bit_state] = cost(bit_state, v) dp = [[INF] * (1 << n) for i in range(k + 1)] dp[0][0] = 0 for i in range(k): for bit_state in range(1 << n): if bin(bit_state).count("1") != i: continue for new_v in range(n): if bit_state & (1 << new_v): continue new_state = bit_state | (1 << new_v) dp[i + 1][new_state] = min(dp[i + 1][new_state], dp[i][bit_state] + a[new_v] + costs[new_v][bit_state]) print(min(dp[k]))