Submission #147487

#TimeUsernameProblemLanguageResultExecution timeMemory
147487luciocfCeste (COCI17_ceste)C++14
16 / 160
104 ms23824 KiB
#include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<ll, int> pii; const int maxn = 110; const int maxv = 1e4+10; const ll inf = 1e18+10; int n, m; ll dist[maxn], ans[maxn]; bool mark[maxn][maxn]; vector<pair<pii, int>> grafo[maxn]; void dijkstra(void) { for (int i = 1; i <= n; i++) dist[i] = inf; priority_queue<pair<pii, pii>, vector<pair<pii, pii>>, greater<pair<pii, pii>>> fila; dist[1] = 0, fila.push({{0, 1}, {0, 0}}); while (!fila.empty()) { int u = fila.top().first.second, sum_t = fila.top().second.first, sum_c = fila.top().second.second; ll cost = fila.top().first.first; fila.pop(); if (sum_t > maxv || mark[u][sum_t]) continue; if (!ans[u]) ans[u] = cost; mark[u][sum_t] = 1; for (auto pp: grafo[u]) { int v = pp.second, t = pp.first.first, c = pp.first.second; fila.push({{1ll*(sum_t+t)*(sum_c+c), v}, {sum_t+t, sum_c+c}}); } } } int main(void) { int n, m; scanf("%d %d", &n, &m); for (int i = 1; i <= m; i++) { int u, v, t, c; scanf("%d %d %d %d", &u, &v, &t, &c); grafo[u].push_back({{t, c}, v}); grafo[v].push_back({{t, c}, u}); } dijkstra(); for (int i = 2; i <= n; i++) { if (ans[i] == 0) printf("-1\n"); else printf("%lld\n", ans[i]); } }

Compilation message (stderr)

ceste.cpp: In function 'int main()':
ceste.cpp:53:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~
ceste.cpp:58:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d %d", &u, &v, &t, &c);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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