210042026-01-12 07:27:52KoszorusBlankaVirágos rét (50 pont)cpp11Forditási hiba
#include <iostream>
#include <vector>

using namespace std;

int main()
{
    int N, K;
    cin >> N >> K;
    int db1 = 0;
    vector <int> R(N+1);
    for (int i = 1; i <= N; i++) {
        cin >> R[i];
        if (R[i]==1) { db1++; }
    }
    
    if (db1 < K) { cout << 0; }else if (db1 == K) { cout << 1; }else {
        int m = db-K+1; 
        cout << (m*(m+1))/2; 
        }
        
    return 0; 
    
}
Forditási hiba
open /var/local/lib/isolate/431/box/a.out: no such file or directory
main.cpp: In function 'int main()':
main.cpp:18:17: error: 'db' was not declared in this scope; did you mean 'db1'?
   18 |         int m = db-K+1;
      |                 ^~
      |                 db1