# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
170581 | 2019-12-25T17:26:28 Z | ZwariowanyMarcin | Commuter Pass (JOI18_commuter_pass) | C++14 | 499 ms | 18944 KB |
#include <bits/stdc++.h> #define fi first #define se second #define mp make_pair #define ss(x) (int) x.size() #define pb push_back #define ll long long #define cat(x) cerr << #x << " = " << x << endl #define FOR(i, n) for(int i = 0; i < n; ++i) using namespace std; const int nax = 1e5 + 11; const ll INF = 1e18; int n, m, a, b, c; int s, t; int uu, vv; vector <pair<int,int>> v[nax]; ll dis[3][nax]; priority_queue <pair<ll, int>> q; bool odw[nax]; void dij(int pocz, int cnt) { for(int i = 1; i <= n; ++i) { dis[cnt][i] = INF; odw[i] = 0; } dis[cnt][pocz] = 0; q.push(mp(0, pocz)); while(!q.empty()) { int ja = q.top().se; q.pop(); if(odw[ja]) continue; odw[ja] = 1; for(auto it : v[ja]) { ll nowa = dis[cnt][ja] + it.se; if(nowa < dis[cnt][it.fi]) { dis[cnt][it.fi] = nowa; q.push(mp(-nowa, it.fi)); } } } } ll ans = INF; ll path[nax]; ll odl[nax]; void algo() { for(int i = 1; i <= n; ++i) { odw[i] = 0; odl[i] = INF; path[i] = INF; } q.push(mp(0, t)); odl[t] = 0; while(!q.empty()) { int ja = q.top().se; q.pop(); if(odw[ja]) continue; odw[ja] = 1; path[ja] = min(path[ja], dis[0][ja]); if(odl[ja] + dis[2][ja] == dis[2][t]) ans = min(ans, dis[1][ja] + path[ja]); for(auto it : v[ja]) { ll nowa = odl[ja] + it.se; if(nowa < odl[it.fi]) { odl[it.fi] = nowa; path[it.fi] = path[ja]; q.push(mp(-nowa, it.fi)); } else if(nowa == odl[it.fi]) { path[it.fi] = min(path[it.fi], path[ja]); } } } } int main() { scanf("%d %d", &n, &m); scanf("%d %d", &s, &t); scanf("%d %d", &uu, &vv); for(int i = 1; i <= m; ++i) { scanf("%d %d %d", &a, &b, &c); v[a].pb(mp(b, c)); v[b].pb(mp(a, c)); } dij(uu, 0); dij(vv, 1); dij(s, 2); ans = min(ans, dis[0][vv]); algo(); for(int i = 1; i <= n; ++i) swap(dis[0][i], dis[1][i]); algo(); printf("%lld\n", ans); return 0; }
Compilation message
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 431 ms | 18156 KB | Output is correct |
2 | Correct | 404 ms | 17516 KB | Output is correct |
3 | Correct | 409 ms | 18944 KB | Output is correct |
4 | Correct | 405 ms | 17980 KB | Output is correct |
5 | Correct | 419 ms | 17224 KB | Output is correct |
6 | Correct | 447 ms | 18116 KB | Output is correct |
7 | Correct | 433 ms | 17644 KB | Output is correct |
8 | Correct | 390 ms | 17484 KB | Output is correct |
9 | Correct | 427 ms | 18280 KB | Output is correct |
10 | Correct | 344 ms | 18100 KB | Output is correct |
11 | Correct | 214 ms | 11896 KB | Output is correct |
12 | Correct | 443 ms | 18152 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 440 ms | 17772 KB | Output is correct |
2 | Correct | 437 ms | 17504 KB | Output is correct |
3 | Correct | 450 ms | 17384 KB | Output is correct |
4 | Correct | 434 ms | 17400 KB | Output is correct |
5 | Correct | 437 ms | 17564 KB | Output is correct |
6 | Correct | 429 ms | 17876 KB | Output is correct |
7 | Correct | 499 ms | 17552 KB | Output is correct |
8 | Correct | 454 ms | 17536 KB | Output is correct |
9 | Correct | 447 ms | 17448 KB | Output is correct |
10 | Correct | 437 ms | 17384 KB | Output is correct |
11 | Correct | 144 ms | 11984 KB | Output is correct |
12 | Correct | 417 ms | 17836 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 14 ms | 3708 KB | Output is correct |
2 | Correct | 4 ms | 2808 KB | Output is correct |
3 | Correct | 4 ms | 2808 KB | Output is correct |
4 | Correct | 23 ms | 4856 KB | Output is correct |
5 | Correct | 13 ms | 3704 KB | Output is correct |
6 | Correct | 5 ms | 2808 KB | Output is correct |
7 | Correct | 5 ms | 2808 KB | Output is correct |
8 | Correct | 6 ms | 2908 KB | Output is correct |
9 | Correct | 5 ms | 2812 KB | Output is correct |
10 | Correct | 14 ms | 3704 KB | Output is correct |
11 | Correct | 4 ms | 2680 KB | Output is correct |
12 | Correct | 4 ms | 2680 KB | Output is correct |
13 | Correct | 4 ms | 2808 KB | Output is correct |
14 | Correct | 5 ms | 2808 KB | Output is correct |
15 | Correct | 5 ms | 2808 KB | Output is correct |
# | 결과 | 실행 시간 | 메모리 | Grader output |
---|---|---|---|---|
1 | Correct | 431 ms | 18156 KB | Output is correct |
2 | Correct | 404 ms | 17516 KB | Output is correct |
3 | Correct | 409 ms | 18944 KB | Output is correct |
4 | Correct | 405 ms | 17980 KB | Output is correct |
5 | Correct | 419 ms | 17224 KB | Output is correct |
6 | Correct | 447 ms | 18116 KB | Output is correct |
7 | Correct | 433 ms | 17644 KB | Output is correct |
8 | Correct | 390 ms | 17484 KB | Output is correct |
9 | Correct | 427 ms | 18280 KB | Output is correct |
10 | Correct | 344 ms | 18100 KB | Output is correct |
11 | Correct | 214 ms | 11896 KB | Output is correct |
12 | Correct | 443 ms | 18152 KB | Output is correct |
13 | Correct | 440 ms | 17772 KB | Output is correct |
14 | Correct | 437 ms | 17504 KB | Output is correct |
15 | Correct | 450 ms | 17384 KB | Output is correct |
16 | Correct | 434 ms | 17400 KB | Output is correct |
17 | Correct | 437 ms | 17564 KB | Output is correct |
18 | Correct | 429 ms | 17876 KB | Output is correct |
19 | Correct | 499 ms | 17552 KB | Output is correct |
20 | Correct | 454 ms | 17536 KB | Output is correct |
21 | Correct | 447 ms | 17448 KB | Output is correct |
22 | Correct | 437 ms | 17384 KB | Output is correct |
23 | Correct | 144 ms | 11984 KB | Output is correct |
24 | Correct | 417 ms | 17836 KB | Output is correct |
25 | Correct | 14 ms | 3708 KB | Output is correct |
26 | Correct | 4 ms | 2808 KB | Output is correct |
27 | Correct | 4 ms | 2808 KB | Output is correct |
28 | Correct | 23 ms | 4856 KB | Output is correct |
29 | Correct | 13 ms | 3704 KB | Output is correct |
30 | Correct | 5 ms | 2808 KB | Output is correct |
31 | Correct | 5 ms | 2808 KB | Output is correct |
32 | Correct | 6 ms | 2908 KB | Output is correct |
33 | Correct | 5 ms | 2812 KB | Output is correct |
34 | Correct | 14 ms | 3704 KB | Output is correct |
35 | Correct | 4 ms | 2680 KB | Output is correct |
36 | Correct | 4 ms | 2680 KB | Output is correct |
37 | Correct | 4 ms | 2808 KB | Output is correct |
38 | Correct | 5 ms | 2808 KB | Output is correct |
39 | Correct | 5 ms | 2808 KB | Output is correct |
40 | Correct | 404 ms | 18536 KB | Output is correct |
41 | Correct | 403 ms | 18204 KB | Output is correct |
42 | Correct | 402 ms | 18280 KB | Output is correct |
43 | Correct | 146 ms | 11924 KB | Output is correct |
44 | Correct | 137 ms | 11932 KB | Output is correct |
45 | Correct | 339 ms | 17000 KB | Output is correct |
46 | Correct | 368 ms | 16900 KB | Output is correct |
47 | Correct | 408 ms | 17920 KB | Output is correct |
48 | Correct | 225 ms | 11544 KB | Output is correct |
49 | Correct | 386 ms | 18164 KB | Output is correct |
50 | Correct | 377 ms | 17164 KB | Output is correct |
51 | Correct | 357 ms | 16996 KB | Output is correct |