Submission #629359

#	Time	Username	Problem	Language	Result	Execution time	Memory
629359		DarkMatter	Catfish Farm (IOI22_fish)	C++17	6 / 100	96 ms	8804 KiB

fish

#include<bits/stdc++.h>
#include "fish.h"
#include <vector>
using namespace std;
typedef long long ll;
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y, std::vector<int> W) {
	ll ans = 0;
	vector<ll>cs1(N + 1, 0), cs2(N + 1, 0);
	for (int i = 0; i < M; i++) {
		if (X[i] == 0)
			cs1[Y[i]] += W[i];
		else
			cs2[Y[i]] += W[i];
	}
	for (int i = 1; i < N; i++)
		cs1[i] += cs1[i - 1], cs2[i] += cs2[i - 1];
	ans = max(cs1[N - 1], cs2[N - 1]);
	if (N == 2)
		return ans;
	for (int i = 0; i < N; i++) {
		ll cur = cs2[N - 1];
		cur -= cs2[i];
		cur += cs1[i];
		ans = max(ans, cur);
	}
	return ans;
}

• Subtask 1: 0 / 3
• Subtask 2: 6 / 6
• Subtask 3: 0 / 9
• Subtask 4: 0 / 14
• Subtask 5: 0 / 21
• Subtask 6: 0 / 17
• Subtask 7: 0 / 14
• Subtask 8: 0 / 16