Submission #14,187

2025-01-10 08:33:00

cpp17

Accepted 50/50

18ms

508 KiB

#include <iostream>

using namespace std;

int n, k, r;
long long l;

int main()
{
    int t;
    cin >> n >> k;
    for (int i = 1; i <= n; ++i)
    {
        cin >> t;
        if (t)
            r++;
    }
    r = r - k + 1;
    if (r < 0)
        cout << 0;
    else
    {
        for (int i = 1; i <= r; i++)
            l = l + i;
        cout << l;
    }
    
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	1ms	508 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	0/0	17ms	396 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	316 KiB
		9	Accepted	3/3	1ms	316 KiB
		10	Accepted	2/2	1ms	328 KiB
		11	Accepted	3/3	1ms	316 KiB
		12	Accepted	2/2	1ms	316 KiB
		13	Accepted	3/3	1ms	316 KiB
		14	Accepted	2/2	17ms	400 KiB
		15	Accepted	2/2	17ms	396 KiB
		16	Accepted	3/3	17ms	396 KiB
		17	Accepted	3/3	17ms	396 KiB
		18	Accepted	3/3	18ms	508 KiB
		19	Accepted	3/3	17ms	316 KiB
		20	Accepted	3/3	17ms	400 KiB
		21	Accepted	3/3	17ms	316 KiB
		22	Accepted	3/3	17ms	396 KiB