제출 #785086

#제출 시각아이디문제언어결과실행 시간메모리
785086khshgCatfish Farm (IOI22_fish)C++17
0 / 100
71 ms14580 KiB
#include<bits/stdc++.h>
using namespace std;

long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
	long long ans = 0;
	vector<int> is[2];
	for(int i = 0; i < M; ++i) is[X[i]].push_back(i);
	for(int u : {0, 1}) sort(begin(is[u]), end(is[u]), [&](const int& i, const int& j) { return Y[i] < Y[j]; });
	for(int u : is[1]) ans += W[u];
	long long Sans = ans;
	int it = 0;
	for(int u : is[0]) {
		Sans += W[u];
		while(it < (int)is[1].size() && Y[it] <= Y[u]) Sans -= W[it++];
		ans = max(ans, Sans);
	}
	return ans;
}
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