#include #define CEIL(a,b) ((a) / (b) + ((a) % (b) == 0 ? 0 : 1)) using namespace std; using ll = long long; using pii = pair; constexpr int MOD = int(1e9 + 7); constexpr int INF = int(1e9 + 1); constexpr ll LLINF = ll(4 * 1e18 + 1); // constexpr int INF = 2147483647; // 2 * 1e9 // constexpr ll LLINF = 9223372036854775807; // 9 * 1e18 const int dx[] = {1, 0, -1, 0, 1, -1, -1, 1, 0}; const int dy[] = {0, 1, 0, -1, 1, 1, -1, -1, 0}; struct Edge{ int to; int cost; }; vector g[100000]; int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(10); int n, m; cin >> n >> m; for(int i = 0; i < m; ++i){ int a, b, c; cin >> a >> b >> c; --a; --b; g[a].push_back({b, c}); g[b].push_back({a, c}); } /* priority_queue, vector>, greater>> que; vector d(n, LLINF); d[0] = 0; que.push({ll(0), 0}); while(!que.empty()){ ll c = que.top().first; int v = que.top().second; que.pop(); for(auto && e : g[v]){ if(d[e.to] > c + e.cost){ d[e.to] = c + e.cost; que.push({d[e.to], e.to}); } } } */ priority_queue, vector>, greater>> que2; vector d2(n, LLINF); vector d3(n, LLINF); d2[0] = 0; // 未使用 d3[0] = 0; // 使用済み que2.push({0, {0, 0}}); while(!que2.empty()){ ll c = que2.top().first; int v = que2.top().second.first; bool used = bool(que2.top().second.second); que2.pop(); for(auto && e : g[v]){ if(used){ if(d3[e.to] > c + e.cost){ d3[e.to] = c + e.cost; que2.push({d3[e.to], {e.to, 1}}); } } else{ if(d2[e.to] > c + e.cost){ d2[e.to] = c + e.cost; que2.push({d2[e.to], {e.to, 0}}); } if(d3[e.to] > c){ d3[e.to] = c; que2.push({d3[e.to], {e.to, 1}}); } } } } cout << "0\n"; for(int i = 1; i < n; ++i){ cout << d2[i] + d3[i] << "\n"; } return 0; }