Submission #892607

#	Time	Username	Problem	Language	Result	Execution time	Memory
892607		Trisanu_Das	Catfish Farm (IOI22_fish)	C++17	Compilation error	0 ms	0 KiB

fish

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

long long f_pref[305][305], dp1[305][305], dp2[305][305], dp_pref[305][305], dp_suff[305][305];

long long max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) {
    for(int i = 0; i < M; i++) f_pref[X[i]][Y[i] + 1] = W[i];
    for(int i = 0; i < N; i++) for(int j = 1; j <= N; j++) f_pref[i][j] += f_pref[i][j - 1];
    for(int l = 1; l < N; l++) {
        for(int i = 0; i <= N; i++) {
            for(int j = 0; j <= N; j++) {
                if(i <= j) dp1[i][j] = dp_pref[j][N] + f_pref[l][j] - f_pref[l][i]; 
                else{
                    dp1[i][j] = dp_pref[j][j] + f_pref[l - 1][i] - f_pref[l - 1][j];
                    dp1[i][j] = max(dp1[i][j], dp_suff[j][i]);
                    if(!j) for(int k = j; k < i; k++) dp[i][j] = max(dp1[i][j], dp2[j][k] + f_pref[l - 1][i] - f_pref[l - 1][k]);
                }
            }
        }
        swap(dp1, dp2);
        memset(dp1, 0, sizeof(dp1);
        memcpy(dp_pref, dp2, sizeof(dp2));
        memcpy(dp_suff, dp2, sizeof(dp2));
        for(int i = 0; i <= N; i++) for(int j = 1; j <= N; j++) dp_pref[i][j] = max(dp_pref[i][j-1], dp_pref[i][j]);
        for(int i = 0; i <= N; i++) for(int j = N; j--;) dp_suff[i][j] = max(dp_suff[i][j + 1], dp_suff[i][j]);
    }
    long long ans = 0;
    for(int i = 0; i <= N; i++) for(int j = 0; j <= N; j++) ans = max(ans, dp2[i][j]);
    return ans;
}

Compilation message (stderr)

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:17:55: error: 'dp' was not declared in this scope; did you mean 'dp2'?
   17 |                     if(!j) for(int k = j; k < i; k++) dp[i][j] = max(dp1[i][j], dp2[j][k] + f_pref[l - 1][i] - f_pref[l - 1][k]);
      |                                                       ^~
      |                                                       dp2
fish.cpp:22:35: error: expected ')' before ';' token
   22 |         memset(dp1, 0, sizeof(dp1);
      |               ~                   ^
      |                                   )