Pagini recente » Cod sursa (job #1368475) | Cod sursa (job #2908649) | Cod sursa (job #628000) | Cod sursa (job #2081827) | Cod sursa (job #1897134)
#include<bits/stdc++.h>
using namespace std;
int n, m, x, y, c;
vector< pair<int,int> > a[250250];
int rez[60000];
set<int> s;
int main()
{
ifstream cin("dijkstra.in");
ofstream cout("dijkstra.out");
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m;
for (int i = 0; i < m; i++)
{
cin >> x >> y >> c;
a[x].push_back(make_pair(y,c));
}
c = 1<<30;
for (int i = 0; i <= n; i++) rez[i] = c;
rez[1] = 0;
s.insert(1);
while(!s.empty())
{
set<int>::iterator it1 = s.begin();
int f = *it1;
s.erase(s.begin());
for (vector< pair<int,int> >::iterator it = a[f].begin(); it != a[f].end(); it++)
{
if (rez[f] + it->second < rez[it->first])
{
rez[it->first] = rez[f] + it->second;
s.insert(it->first);
}
}
}
for (int i = 2; i <= n; i++) cout << (rez[i] == 1 <<30 ? 0:rez[i]) << " ";
}