Submission #21,006

2026-01-12 07:33:29

cpp11

Wrong answer 42/50

18ms

756 KiB

#include <iostream>
#include <vector>

using namespace std;

int main()
{
    int N, K;
    cin >> N >> K;
    int db1 = 0;
    //vector <int> R(N+1);
    int x;
    for (int i = 1; i <= N; i++) {
        //cin >> R[i];
        cin >> x;
        if (x==1) { db1++; }
    }
    
    if (db1 < K) { cout << 0; }
    else {
        int m = db1-K+1; 
        cout << (m*(m+1))/2; 
        }
        
    return 0; 
    
}

	Sum	Test	Verdict		Time	Memory
base	42/50
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	1ms	508 KiB
		3	Accepted	0/0	17ms	316 KiB
		4	Accepted	2/2	1ms	316 KiB
		5	Accepted	2/2	1ms	316 KiB
		6	Accepted	2/2	1ms	316 KiB
		7	Accepted	3/3	1ms	316 KiB
		8	Accepted	3/3	1ms	500 KiB
		9	Accepted	3/3	1ms	756 KiB
		10	Accepted	2/2	1ms	508 KiB
		11	Accepted	3/3	1ms	316 KiB
		12	Accepted	2/2	1ms	316 KiB
		13	Accepted	3/3	1ms	332 KiB
		14	Accepted	2/2	17ms	400 KiB
		15	Wrong answer	0/2	17ms	500 KiB
		16	Accepted	3/3	17ms	316 KiB
		17	Accepted	3/3	17ms	316 KiB
		18	Wrong answer	0/3	17ms	316 KiB
		19	Accepted	3/3	17ms	500 KiB
		20	Accepted	3/3	17ms	396 KiB
		21	Accepted	3/3	18ms	400 KiB
		22	Wrong answer	0/3	18ms	596 KiB