Pagini recente » Cod sursa (job #2334940) | Cod sursa (job #2256152) | Cod sursa (job #288965) | Cod sursa (job #1938929) | Cod sursa (job #880686)
Cod sursa(job #880686)
#include<algorithm>
#include<vector>
#include<queue>
#include<stdio.h>
#define pb push_back
#define mp make_pair
#define fs first
#define sc second
using namespace std;
priority_queue<pair<int,int> > S;
int N,M;
pair<int,int> act,nod;
vector<pair<int,int> > g[50500];
int cost[50500];
int x,y,c;
int main()
{
freopen("dijkstra.in","r",stdin);
scanf("%d%d",&N,&M);
for(int i=2;i<=N;++i)
cost[i]=10101000;
for(int i=1;i<=M;++i)
{
scanf("%d%d%d",&x,&y,&c);
g[x].pb(mp(y,c));
}
S.push(mp(1,0));
while(S.size() != 0)
{
act = S.top();
S.pop();
if(cost[act.fs]==act.sc)
{
for(int i=0;i<g[act.fs].size();++i)
{
if(cost[g[act.fs][i].fs] > cost[act.fs] + g[act.fs][i].sc)
{
S.push(mp(g[act.fs][i].fs,cost[act.fs] + g[act.fs][i].sc));
cost[g[act.fs][i].fs]= cost[act.fs] + g[act.fs][i].sc;
}
}
}
}
for(int i=2;i<=N;++i)
printf("%d ",cost[i]);
return 0;
}