Submission #538020

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
538020	2022-03-16T03:15:08 Z	rin_tohsaka	Kpart (eJOI21_kpart)	C++14	Compilation error	0 ms	0 KB

Main

#include <bits/stdc++.h>
using namespace std;
int k[1010], p[1010], dp[1010][50010],c;
int main(){
    cin>>c;
    for(int cc = 0; cc < c; cc++){
        int n; cin >> n;     
        p[0] = 0;
        for (int i = 1; i <= n; i++){
          cin >> k[i];
        }
        for (int i = 1; i <= n; i++) p[i] = p[i-1] + k[i];
        vector<bool> work(n+1, 1);
        for (int i = 1; i <= n; i++){
            for (int x = 0; sum < vec[i]; sum++) dp[i][sum] = dp[i - 1][sum];
            for (int x = k[i]; x< 50010; x++){
              dp[i][x] = max(dp[i - 1][x], dp[i - 1][x-k[i]]);
            }
            dp[i][k[i]] = i;
            for (int j = 1; j <= i; j++){
                int x = p[i] - p[j - 1];
                if (x % 2){
                  work[i+1-j] = 0;
                }
                else if (dp[i][x/ 2] < j){
                  work[i+1-j] = 0;
                }
            }
        }
        int ans=0;
        for (int i = 1; i <= n; i++)
            if (work[i])ans++;
                
        cout << ans << " ";
        for (int i = 1; i <= n; i++)
            if (work[i])cout << i << ' ';
        cout << '\n';
    }
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:15:29: error: 'sum' was not declared in this scope
   15 |             for (int x = 0; sum < vec[i]; sum++) dp[i][sum] = dp[i - 1][sum];
      |                             ^~~
Main.cpp:15:35: error: 'vec' was not declared in this scope
   15 |             for (int x = 0; sum < vec[i]; sum++) dp[i][sum] = dp[i - 1][sum];
      |                                   ^~~
Main.cpp:15:22: warning: unused variable 'x' [-Wunused-variable]
   15 |             for (int x = 0; sum < vec[i]; sum++) dp[i][sum] = dp[i - 1][sum];
      |                      ^