Submission #837054

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
837054	2023-08-24T20:37:31 Z	aZvezda	Cyberland (APIO23_cyberland)	C++17	Compilation error	0 ms	0 KB

cyberland

#include "cyberland.h"

#include <bits/stdc++.h>

const int MAX_N = 1e5 + 10;
const int MAX_K = 100;

typedef long double ld;

ld dist[2][MAX_N][MAX_K];

std::vector<std::pair<int, int> > g[MAX_N];

ld pw[MAX_K];

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) {
	for(int i = 0; i < N; i ++) {
		g[i].resize(0);
	}

	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]});
	}

	K = std::min(K, MAX_K - 1);

	pw[0] = 1;
	for(int i = 1; i <= K; i ++) {
		pw[i] = (pw[i - 1] * 2.0);
	}

	for(int i = 0; i < N; i ++) {
		for(int j = 0; j <= K; j ++) {
			dist[0][i][j] = dist[1][i][j] = 1e18;
		}
	}

	for(int left = K; left >= 0; left --) {
		std::priority_queue<std::pair<ld, int> > pq;

		for(int i = 0; i < N; i ++) {
			if(i == 0) {
				dist[0][i][left] = 0;
				pq.push({0, i});
			}
			if(dist[1][i][left] < 1e17) {
				pq.push({-dist[1][i][left], i + MAX_N});
			}
		}

		while(!pq.empty()) {
			auto curr = pq.top(); pq.pop();
			curr.first *= -1;
			bool used = curr.second / MAX_N;
			curr.second %= MAX_N;
			if(curr.second == H) { continue; }
			if(curr.first > dist[used][curr.second][left]) {
				continue;
			}
			for(const auto &it : g[curr.second]) {
				ld new_cost = curr.first + (ll)it.second / pw[left];
				if(dist[0][it.first][left] > new_cost) {
					dist[0][it.first][left] = new_cost;
					pq.push({-new_cost, it.first});
				}
			}
		}

		for(int i = 0; i < N; i ++) {
			if(arr[i] == 2) {
				dist[1][i][left - 1] = dist[0][i][left];
			} else if(arr[i] == 0) {
				if(dist[0][i][left] < 1e17) {
					dist[1][i][left - 1] = 0;
				}
			}
		}
	}

	ld ret = std::min(dist[0][H][0], dist[1][H][0]);
	if(ret > 1e17) {
		return -1;
	}

	return ret;
}

Compilation message

cyberland.cpp: In function 'double solve(int, int, int, int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
cyberland.cpp:62:33: error: 'll' was not declared in this scope; did you mean 'ld'?
   62 |     ld new_cost = curr.first + (ll)it.second / pw[left];
      |                                 ^~
      |                                 ld