Submission #1100839

#TimeUsernameProblemLanguageResultExecution timeMemory
1100839NoMercyCyberland (APIO23_cyberland)C++17
0 / 100
25 ms6992 KiB
#include "cyberland.h" #include <bits/stdc++.h> using namespace std; const int inf = 1e9 + 99; double solve(int N, int M, int K, int H, std::vector<int> x, std::vector<int> y, std::vector<int> c, std::vector<int> arr) { vector<array<int, 2>> g[N + 1]; for (int i = 0;i < M;i ++) { g[x[i]].push_back({y[i], c[i]}); g[y[i]].push_back({x[i], c[i]}); } vector<int> dp(N + 1, inf); dp[1] = 0; multiset<array<int, 2>> ms; ms.insert({0, 1}); while (ms.size() > 0) { auto it = *ms.begin(); ms.erase(ms.begin()); if (it[1] == H) continue; for (auto [v, w] : g[it[1]]) if (dp[v] > (arr[v] == 0 ? 0 : it[0] + w)) { dp[v] = (arr[v] == 0 ? 0 : it[0] + w); ms.insert({dp[v], v}); } } return dp[H]; }
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