Submission #649762

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
649762	2022-10-11 10:33:52	RealSnake	Commuter Pass (JOI18_commuter_pass)	C++17	24 / 100	40 ms	7400 KiB

commuter_pass

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#include "bits/stdc++.h"
#define ll long long
using namespace std;
int n, m, s, t, u, v;
int a[100005];
ll dist[305][305];
vector<pair<int, ll>> node[100005];
ll ans;
int par[100005];
ll dist2[100005];
void s1() {
    for(int k = 1; k <= n; k++) {
        for(int i = 1; i <= n; i++) {
            for(int j = 1; j <= n; j++) {
                if(dist[i][k] + dist[k][j] < dist[i][j])
                    dist[i][j] = dist[i][k] + dist[k][j];
            }
        }
    }
    ans = dist[u][v];
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= n; j++) {
            if(dist[s][i] + dist[i][j] + dist[j][t] == dist[s][t] || dist[s][j] + dist[j][i] + dist[i][t] == dist[s][t])
                ans = min(ans, dist[u][i] + dist[j][v]);
        }
    }
    cout << ans;
 
 
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• Subtask 1: 0 / 16
• Subtask 2: 0 / 15
• Subtask 3: 24 / 24
• Subtask 4: 0 / 45