Pagini recente » Cod sursa (job #2408615) | Cod sursa (job #2423239) | Cod sursa (job #810054) | Diferente pentru schimbare-borland/alternativa intre reviziile 8 si 14 | Cod sursa (job #2037789)
#include <bits/stdc++.h>
#define vecin vec.first
#define distanta vec.second
using namespace std;
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
const int N = 50010;
const int oo=1000000010;
vector<pair<int,int>> v[N];
int n,m,x,y,c,d[N];
queue<int> q;
bitset<N> in_coada;
int main()
{
f>>n>>m;
for(; m; m--)
{
f>>x>>y>>c;
v[x].push_back(make_pair(y,c));
}
for(int i=2; i<=n; i++)
d[i]=oo;
q.push(1);
in_coada[1]=1;
while(q.size())
{
x=q.front();
q.pop();
in_coada[x]=0;
for(auto vec:v[x])
if(d[x]+distanta<d[vecin])
{
d[vecin]=d[x]+distanta;
if(!in_coada[vecin])q.push(vecin);
}
}
for(int i=2;i<=n;i++)
{
if(d[i]==oo)
d[i]=0;
g<<d[i]<<' ';
}
return 0;
}