Pagini recente » Cod sursa (job #2599242) | Cod sursa (job #2826171) | Monitorul de evaluare | Cod sursa (job #998001) | Cod sursa (job #1142857)
#include<iostream>
#include<fstream>
#include<vector>
#include<set>
#define maxn 50010
#define INF 99999
using namespace std;
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
vector <int> G[maxn],C[maxn];
set <pair <int,int> > T;
int x,y,c,n,m,d[maxn],val,xx;
void solve(){
for(int i=2;i<=n;i++)
d[i]=INF;
T.insert(make_pair(0,1));
while(T.size()>0){
val=(*T.begin()).first;
xx=(*T.begin()).second;
T.erase(*T.begin());
for(int i=0;i < G[xx].size();i++)
if(d[G[xx][i]] > val+C[xx][i]){
d[G[xx][i]]=val+C[xx][i];
T.insert(make_pair(d[G[xx][i]],G[xx][i]));
}
}
}
int main (){
f>>n>>m;
for(int i=1;i<=m;i++){
f>>x>>y>>c;
G[x].push_back(y);
C[x].push_back(c);
}
solve();
for(int i=2;i<=n;i++)
if(d[i]!=INF)
g<<d[i]<<" ";
else
g<<0<<" ";
return 0;
}