Cod sursa(job #1521095)

Utilizator DobosDobos Paul Dobos Data 9 noiembrie 2015 21:53:00
Problema Drumuri minime Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.28 kb
#include <bits/stdc++.h>

using namespace std;
ifstream fin ("dmin.in");
ofstream fout ("dmin.out");
const int MOD = 104659;
const int MAX = 1505;
const int INF = 1e9;
set < pair <int,int> > T;
vector < pair <int,int> > G[MAX];
struct fac{
int c,d,p;
}D[MAX];
inline void solve()
{
    int cost,nod,ok;
    T.insert({0,1});
    D[1].c = 1;
    while(!T.empty()){
        cost = (*T.begin()).first;
        nod = (*T.begin()).second;
        T.erase(*T.begin());
        for(int i = 0; i < G[nod].size(); i++){
            if(D[G[nod][i].second].d >= D[nod].d + G[nod][i].first){
                    D[G[nod][i].second].d = D[nod].d + G[nod][i].first;
                    if(D[nod].p != D[G[nod][i].second].p)
                    D[G[nod][i].second].c += D[nod].c ;
                    D[G[nod][i].second].p = nod;
                    T.insert({D[G[nod][i].second].d,G[nod][i].second});
            }
        }
        }

}
int main()
{
    int n,m,x,y,c;
    fin >> n >> m;
    for(int i = 1; i <= m; i++){
        fin >> x >> y >> c;
        G[x].push_back({c,y});
        G[y].push_back({c,x});
    }
    for(int i = 2; i <= n; i++)
        D[i].d = INF,D[i].p = INF;
    solve();
    for(int i = 2; i <= n; i++)
        fout << D[i].c << " ";
    return 0;
}