Pagini recente » Cod sursa (job #1979012) | Cod sursa (job #3124371) | Cod sursa (job #2293031) | Cod sursa (job #2610424) | Cod sursa (job #894950)
Cod sursa(job #894950)
#include<iostream>
#include<cstdio>
#include<deque>
#include<vector>
#define maxn 50100
#define INF 0x3f3f3f3f
using namespace std;
deque < int > q;
vector < int > G[maxn],C[maxn];
int i,n,m,x,y,c,d[maxn];
int main()
{
freopen("dijkstra.in", "rt", stdin);
freopen("dijkstra.out", "wt", stdout);
scanf("%d%d",&n,&m);
for(i=2; i<=n; ++i)
d[i]=INF;
while(m--)
{
scanf("%d%d%d",&x,&y,&c),G[x].push_back(y),C[x].push_back(c);
}
fclose(stdin);
q.push_back(1);
while(!q.empty())
{
x=q.front();
for(i=0; i<G[x].size(); ++i)
if(d[G[x][i]] > d[x] + C[x][i])
d[G[x][i]] = d[x] + C[x][i], q.push_back(G[x][i]);
q.pop_front();
}
for(i = 2; i <= n; i++)
printf("%d ", d[i] == INF ? 0 : d[i]);
fclose(stdout);
return 0;
}