結果
| 問題 |
No.1301 Strange Graph Shortest Path
|
| コンテスト | |
| ユーザー |
uzzy
|
| 提出日時 | 2020-11-27 23:33:54 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,914 bytes |
| コンパイル時間 | 1,773 ms |
| コンパイル使用メモリ | 178,472 KB |
| 実行使用メモリ | 11,988 KB |
| 最終ジャッジ日時 | 2024-09-13 01:11:36 |
| 合計ジャッジ時間 | 6,486 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 28 WA * 5 |
ソースコード
//#pragma GCC optimize ("O2")
//#pragma GCC target ("avx2")
#include<bits/stdc++.h>
//#include<atcoder/all>
//using namespace atcoder;
using namespace std;
typedef long long ll;
#define rep(i, n) for(int i = 0; i < (n); i++)
#define rep1(i, n) for(int i = 1; i <= (n); i++)
#define co(x) cout << (x) << "\n"
#define cosp(x) cout << (x) << " "
#define ce(x) cerr << (x) << "\n"
#define cesp(x) cerr << (x) << " "
#define pb push_back
#define mp make_pair
#define chmin(x, y) x = min(x, y)
#define chmax(x, y) x = max(x, y)
#define Would
#define you
#define please
vector<pair<int, int>> E[100001];
int C[100001], D[100001];
pair<int, int> mae[100001];
int main() {
cin.tie(0);
ios::sync_with_stdio(false);
int N, M;
cin >> N >> M;
rep(i, M) {
int u, v, c, d;
cin >> u >> v >> c >> d;
E[u].pb({ v, i });
E[v].pb({ u, i });
C[i] = c;
D[i] = d;
}
#define PT pair<ll, int>
ll Di[100001];
rep1(i, N) Di[i] = 1e18;
priority_queue<PT, vector<PT>, greater<PT>> que;
Di[1] = 0;
que.push(mp(0, 1));
while (que.size()) {
PT p = que.top();
que.pop();
int i = p.second;
if (Di[i] != p.first) continue;
for (PT p2 : E[i]) {
int j = p2.first;
int cc = C[p2.second];
int dd = C[p2.second];
ll d = Di[i] + cc;
if (Di[j] > d) {
Di[j] = d;
mae[j] = { i, p2.second };
que.push(mp(d, j));
}
}
}
int tmp = N;
while (mae[tmp].first) {
C[mae[tmp].second] = D[mae[tmp].second];
tmp = mae[tmp].first;
}
ll are = Di[N];
rep1(i, N) Di[i] = 1e18;
Di[1] = 0;
que.push(mp(0, 1));
while (que.size()) {
PT p = que.top();
que.pop();
int i = p.second;
if (Di[i] != p.first) continue;
for (PT p2 : E[i]) {
int j = p2.first;
int cc = C[p2.second];
int dd = C[p2.second];
ll d = Di[i] + cc;
if (Di[j] > d) {
Di[j] = d;
mae[j] = { i, p2.second };
que.push(mp(d, j));
}
}
}
co(are + Di[N]);
Would you please return 0;
}
uzzy