Submission #00010
ソースコード
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | #include<bits/stdc++.h> using namespace std; #define int long long typedef long long int64; typedef pair< int64, int > Pi; const int64 INF = 1LL << 60; struct edge { int to, cost; }; vector< edge > graph[100000]; signed main() { int N, M, C; int64 ALL = 0; cin >> N >> M >> C; for ( int i = 0; i < M; i++) { int A, B, D; cin >> A >> B >> D; --A, --B; graph[A].push_back((edge){B, D}); graph[B].push_back((edge){A, D}); ALL += D; } vector< Pi > min_cost(N); for ( int i = 0; i < N; i++) { min_cost[i] = Pi(INF, i); } priority_queue< Pi, vector< Pi >, greater< Pi > > Que; min_cost[0].first = 0; Que.push(Pi(0, 0)); while (!Que.empty()) { Pi p = Que.top(); Que.pop(); if (min_cost[p.second].first < p.first) continue ; for (auto e : graph[p.second]) { int next = p.first + e.cost; if (min_cost[e.to].first > next) { min_cost[e.to].first = next; Que.push(Pi(next, e.to)); } } } sort(min_cost.begin(), min_cost.end()); bool used[100000] = {}; int ptr = 0; int64 ret = INF; while (ptr < N) { do { for (auto e : graph[min_cost[ptr].second]) { if (used[e.to]) ALL -= e.cost; } used[min_cost[ptr].second] = true ; ++ptr; } while (min_cost[ptr - 1].first == min_cost[ptr].first); ret = min(ret, ALL + 1LL * C * min_cost[ptr - 1].first); } cout << ret << endl; } |
ステータス
項目 | データ |
---|---|
問題 | 0006 - JOI公園 |
ユーザー名 | ei1333 |
投稿日時 | 2015-12-22 13:56:47 |
言語 | C++11 |
状態 | Accepted |
得点 | 100 |
ソースコード長 | 1476 Byte |
最大実行時間 | 242 ms |
最大メモリ使用量 | 16252 KB |
セット
セット | 得点 | Cases | |
---|---|---|---|
1 | INPUT1 | 15 / 15 | sample-*, 01-* |
2 | INPUT2 | 45 / 45 | sample-*, 01-*, 02-* |
3 | INPUT3 | 40 / 40 | * |
テストケース
ファイル名 | 状態 | 実行時間 | メモリ使用量 | # | ||
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01-01.txt | AC | 23 ms | 2908 KB |
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01-02.txt | AC | 21 ms | 3012 KB |
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01-03.txt | AC | 21 ms | 2988 KB |
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01-04.txt | AC | 18 ms | 2960 KB |
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01-05.txt | AC | 22 ms | 2920 KB |
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01-06.txt | AC | 25 ms | 3012 KB |
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01-07.txt | AC | 21 ms | 2840 KB |
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01-08.txt | AC | 23 ms | 2800 KB |
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01-09.txt | AC | 16 ms | 3016 KB |
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01-10.txt | AC | 19 ms | 2980 KB |
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01-11.txt | AC | 19 ms | 3060 KB |
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01-12.txt | AC | 25 ms | 3024 KB |
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01-13.txt | AC | 23 ms | 2980 KB |
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01-14.txt | AC | 19 ms | 3068 KB |
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01-15.txt | AC | 16 ms | 3152 KB |
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01-16.txt | AC | 20 ms | 3112 KB |
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01-17.txt | AC | 17 ms | 2940 KB |
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01-18.txt | AC | 20 ms | 3020 KB |
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02-01.txt | AC | 17 ms | 2972 KB |
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02-02.txt | AC | 20 ms | 2928 KB |
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02-03.txt | AC | 20 ms | 3016 KB |
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02-04.txt | AC | 22 ms | 3216 KB |
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02-05.txt | AC | 20 ms | 3004 KB |
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02-06.txt | AC | 25 ms | 2960 KB |
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02-07.txt | AC | 28 ms | 3048 KB |
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02-08.txt | AC | 21 ms | 3268 KB |
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02-09.txt | AC | 18 ms | 3276 KB |
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02-10.txt | AC | 27 ms | 3152 KB |
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02-11.txt | AC | 25 ms | 3036 KB |
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02-12.txt | AC | 20 ms | 3128 KB |
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02-13.txt | AC | 20 ms | 3084 KB |
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02-14.txt | AC | 27 ms | 3248 KB |
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02-15.txt | AC | 23 ms | 3108 KB |
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02-16.txt | AC | 18 ms | 3196 KB |
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02-17.txt | AC | 19 ms | 3260 KB |
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02-18.txt | AC | 23 ms | 3416 KB |
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02-19.txt | AC | 23 ms | 3408 KB |
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03-01.txt | AC | 171 ms | 13000 KB |
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03-02.txt | AC | 230 ms | 15672 KB |
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03-03.txt | AC | 54 ms | 5860 KB |
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03-04.txt | AC | 171 ms | 14256 KB |
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03-05.txt | AC | 107 ms | 12308 KB |
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03-06.txt | AC | 99 ms | 12384 KB |
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03-07.txt | AC | 106 ms | 9916 KB |
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03-08.txt | AC | 105 ms | 9864 KB |
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03-09.txt | AC | 229 ms | 15956 KB |
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03-10.txt | AC | 121 ms | 10044 KB |
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03-11.txt | AC | 220 ms | 16028 KB |
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03-12.txt | AC | 242 ms | 16012 KB |
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03-13.txt | AC | 227 ms | 16028 KB |
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03-14.txt | AC | 233 ms | 16048 KB |
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03-15.txt | AC | 226 ms | 16196 KB |
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03-16.txt | AC | 237 ms | 16232 KB |
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03-17.txt | AC | 222 ms | 16252 KB |
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03-18.txt | AC | 228 ms | 16032 KB |
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03-19.txt | AC | 228 ms | 16044 KB |
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sample-01.txt | AC | 19 ms | 3128 KB |
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sample-02.txt | AC | 21 ms | 3096 KB |
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sample-03.txt | AC | 19 ms | 3068 KB |
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