Cod sursa(job #2661109)

Utilizator FasoleboiTudor Gadalean Fasoleboi Data 21 octombrie 2020 12:34:48
Problema Algoritmul lui Dijkstra Scor 50
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.9 kb
#include <bits/stdc++.h>
#define NMAX 50001
using namespace std;

ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");

int n, m, x, y, c;
int cost[NMAX];
vector < int > v[NMAX], p[NMAX];
bool viz[NMAX];

void read(){
    fin>>n>>m;

    for(int i=1;i<=m;i++){
        fin>>x>>y>>c;
        v[x].push_back(y);
        p[x].push_back(c);
    }
}

void dji(int nod, int dis){
    viz[nod] = 1;

    for(int i=0;i<v[nod].size();i++){
        int d = dis + p[nod][i];
        if(!viz[v[nod][i]] || d < cost[v[nod][i]]){
            cost[v[nod][i]] = d;
            dji(v[nod][i], d);
        }
    }
}

int main(){
    read();
    for(int i=2;i<=n;i++){
        cost[i] = INT_MAX;
    }

    dji(1, 0);

    for(int i=2;i<=n;i++){
        if(cost[i]==INT_MAX){
            fout<<0<<" ";
        }else{
            fout<<cost[i]<<" ";
        }
    }
    return 0;
}