Submission #1190190

#	Time	Username	Problem	Language	Result	Execution time	Memory
1190190		kirito	Cyberland (APIO23_cyberland)	C++20	44 / 100	163 ms	10568 KiB

cyberland

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;

const int N = 110000;

vector<pair<int, ll>> g[N];
ld dp[N];

double solve(int n, int m, int k, int h, vector<int> x, vector<int> y, vector<int> c, vector<int> arr) {
	k = min(k, 70);
	for (int i = 0; i < m; i++) {
		int u = x[i], v = y[i], w = c[i];
		g[u].push_back({v, w});
		g[v].push_back({u, w});
	}
	g[h].clear();
	for (int i = 0; i < n; i++)
		dp[i] = -1;
	dp[0] = 0;
	for (int i = 0; i <= k; i++) {
		for (int j = 0; j < n; j++) {
			if (dp[j] == -1) continue;
			if (arr[j] == 0) dp[j] = 0;
			if (arr[j] == 2) dp[j] /= 2;
		}
		set<pair<int, ld>> st;
		for (int j = 0; j < n; j++)
			if (dp[j] != -1)
				st.insert({j, dp[j]});
		while (!st.empty()) {
			int v = st.begin()->first;
			st.erase(st.begin());
			for (auto [u, w] : g[v]) {
				ld ndp = dp[v] + w;
				if (dp[u] != -1 && dp[u] <= ndp) continue;
				st.erase({u, dp[u]});
				dp[u] = ndp;
				st.insert({u, dp[u]});
			}
		}
	}
	for (int i = 0; i < n; i++)
		g[i].clear();
	return dp[h];
}

• Subtask 1: 0 / 5
• Subtask 2: 8 / 8
• Subtask 3: 13 / 13
• Subtask 4: 0 / 19
• Subtask 5: 7 / 7
• Subtask 6: 16 / 16
• Subtask 7: 0 / 29
• Subtask 8: 0 / 3