Pagini recente » Cod sursa (job #373934) | Cod sursa (job #2832153) | Cod sursa (job #2028140) | Cod sursa (job #1057665) | Cod sursa (job #2632067)
// the return
/*
`-/oo+/- ``
.oyhhhhhhyo.`od
+hhhhyyoooos. h/
+hhyso++oosy- /s
.yoooossyyo:``-y`
..----.` ``.-/+:.`
`````..-::/.
`..```.-::///`
`-.....--::::/:
`.......--::////:
`...`....---:::://:
`......``..--:::::///:`
`---.......--:::::////+/`
----------::::::/::///++:
----:---:::::///////////:`
.----::::::////////////:-`
`----::::::::::/::::::::-
`.-----:::::::::::::::-
...----:::::::::/:-`
`.---::/+osss+:`
``.:://///-.
*/
#include <iostream>
#include <fstream>
#include <algorithm>
#include <cstring>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <cmath>
using namespace std;
ifstream in ("dijkstra.in");
ofstream out ("dijkstra.out");
const int INF = 2e9;
const int N = 5e4;
vector <pair <int, int>> g[5 + N];
int dp[5 + N];
bool viz[5 + N];
int n, m;
priority_queue <pair <int, int>, vector <pair <int, int>>, greater <pair <int, int>>> heap;
int main() {
//freopen("dijkstra.in", "r", stdin);
//freopen("dijkstra.out", "w", stdout);
in >> n >> m;
//scanf("%d%d", &n, &m);
for(int i = 1; i <= n; i++) dp[i] = INF;
for(int i = 1; i <= m; i++) {
int x, y, cost;
in >> x >> y >> cost;
//scanf("%d%d%d", &x, &y, &cost);
g[x].push_back(make_pair(cost, y));
}
dp[1] = 0;
heap.push(make_pair(0, 1));
while(heap.size()) {
pair <int, int> top = heap.top();
heap.pop();
if(viz[top.second] == false) {
viz[top.second] = true;
for(auto to : g[top.second]) {
if(dp[to.second] > to.first + dp[top.second]) {
dp[to.second] = to.first + dp[top.second];
heap.push(make_pair(dp[to.second], to.second));
}
}
}
}
for(int i = 2; i <= n; i++) {
if(dp[i] != INF)
out << dp[i] << " ";
//printf("%d ", dp[i]);
else out << "0 "; //printf("0 ");
}
out << '\n';
//printf("\n");
in.close();
out.close();
//fclose(stdin);
//fclose(stdout);
return 0;
}