Submission #1801324

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Source Code Expand

#include<bits/stdc++.h>
#define vi vector<int>
#define vvi vector<vector<int> >
#define vl vector<ll>
#define vvl vector<vector<ll>>
#define vb vector<bool>
#define vc vector<char>
#define vs vector<string>
using ll = long long;
using ld =long double;
//#define int ll
#define INF 1e9
#define EPS 0.0000000001
#define rep(i,n) for(int i=0;i<n;i++)
#define loop(i,s,n) for(int i=s;i<n;i++)
#define all(in) in.begin(), in.end()
template<class T, class S> void cmin(T &a, const S &b) { if (a > b)a = b; }
template<class T, class S> void cmax(T &a, const S &b) { if (a < b)a = b; }
#define MAX 9999999
using namespace std;
typedef pair<int, int> pii;
typedef pair<int,pii> piii;
#define mp make_pair
signed main(){
    int n,m;
    cin>>n>>m;
    int dp[301][301];
    rep(i,301)rep(j,301)dp[i][j]=INF;
    rep(i,301)dp[i][i]=0;
    rep(_,m){
        int to,from,cost;
        cin>>to>>from>>cost;
        --to,--from;
        dp[to][from]=dp[from][to]=cost;
    }
    rep(k,n)rep(i,n)rep(j,n)cmin(dp[i][j],dp[i][k]+dp[k][j]);
    int as=INF;
    rep(i,n){
        int temp=0;
        rep(j,n){
            if(i==j)continue;
            cmax(temp,dp[i][j]);
        }
        cmin(as,temp);
    }
    cout<<as<<endl;
}

Submission Info

Judge Result