Submission #1226525

#	Time	Username	Problem	Language	Result	Execution time	Memory
1226525		ericl23302	Catfish Farm (IOI22_fish)	C++20	6 / 100	49 ms	8776 KiB

fish

#include "fish.h"
#include <bits/stdc++.h>

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) {
    if (N == 2) {
        vector<ll> res(2);
        for (int i = 0; i < M; ++i) res[X[i]] += W[i];
        return *max_element(res.begin(), res.end());
    } else {
        vector<ll> left(N, 0), right(N, 0);
        for (int i = 0; i < M; ++i) {
            if (X[i] == 0) left[Y[i]] += W[i];
            else right[Y[i]] += W[i];
        }
        ll res = max(0ll, left[0] - right[0]);
        for (int i = 1; i < N; ++i) left[i] += left[i - 1], right[i] += right[i - 1], res = max(res, left[i] - right[i]);
        return res + right[N - 1];
    }
}

• 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