Submission #1123291

#	Time	Username	Problem	Language	Result	Execution time	Memory
1123291		sunboi	Catfish Farm (IOI22_fish)	C++20	Compilation error	0 ms	0 KiB

fish

#include <bits/stdc++.h>
using namespace std;

int64 max_weights(int N, int M, int[] X, int[] Y, int[] W){
    /*vector<pair<int, int>> a(M);
    for (int i = 0; i < M; i++){
        a[i] = {X[i], Y[i]};
    }*/
    vector<vector<int>> pref(N, vector<int> pref(N + 1));
    for (int i = 0; i < M; i++){
        pref[X[i]][Y[i]] += W[i];  
    }
    for (int i = 0; i < N; i++){
        for (int j = 1; j <= N; j++){
            pref[i][j] += pref[i][j - 1];
        }
    }
    vector<vector<int>> dp(N, vector<int> pref(N + 1));
    int ans = 0;
    for (int i = 1; i < N; i++){
        for (int prev = 0; prev <= N; prev++){
            for (int j = 0; j <= N; j++){
                int cogemos = 0;
                if (prev > j){
                    cogemos = pref[i][prev] - pref[i][j];
                }else{
                    cogemos = pref[i - 1][j] - pref[i][prev];
                }
                dp[i][j] = max(dp[i][j], dp[i - 1][prev] + cogemos);
            }
        }
    }
    for (int i = 0; i <= N; i++) ans = max(ans, dp[N - 1][i]);
    
    return ans;
    
}

Compilation message (stderr)

fish.cpp:4:1: error: 'int64' does not name a type; did you mean 'int64_t'?
    4 | int64 max_weights(int N, int M, int[] X, int[] Y, int[] W){
      | ^~~~~
      | int64_t