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Cod sursa(job #906110)
#include <algorithm>
#include <fstream>
#include <iostream>
#include <utility>
#include <vector>
using namespace std;
#ifdef INFOARENA
ifstream in("dijkstra.in");
ofstream out("dijkstra.out");
#else
#define in cin
#define out cout
#endif
#define FORIT(it,v) for(typeof((v).begin())it=(v).begin();it!=(v).end();++it)
const int MAX_N = 50100;
const int INF = 1 << 30;
int N, M;
vector<pair<int, int> > graph[MAX_N];
vector<vector<int> > d;
int cost[MAX_N];
int max_edge = 0;
bool visited[MAX_N];
void read_input();
void solve();
void print_output();
int main() {
read_input();
solve();
print_output();
return 0;
}
void read_input() {
in >> N >> M;
for (int i = 1, a, b, c; i <= M; ++i) {
in >> a >> b >> c;
graph[a].push_back(make_pair(b, c));
max_edge = max(max_edge, c);
}
}
void solve() {
d.resize(++max_edge);
int used_nodes = 0;
int source = 1;
d[0].push_back(source);
fill(cost, cost + N + 1, INF);
cost[source] = 0;
for (int i = 0; used_nodes < N; ++i) {
int dist = i % max_edge;
while (!d[dist].empty()) {
int node = d[dist].back();
d[dist].pop_back();
if (visited[node] == true) continue;
visited[node] = true;
++used_nodes;
FORIT (it, graph[node]) {
if (!visited[it->first]) {
if (cost[node] + it->second < cost[it->first]) {
cost[it->first] = cost[node] + it->second;
d[cost[it->first] % max_edge].push_back(it->first);
}
}
}
}
}
}
void print_output() {
for (int i = 2; i <= N; ++i) {
out << (cost[i] == INF ? 0 : cost[i]) << ' ';
}
}