Submission #21,452

2026-01-13 09:12:48

cpp17

Wrong answer 42/50

18ms

748 KiB

#include <iostream>

using namespace std;

int main()
{
    int n,k;
    cin>>n>>k;
    int t[n];
    int v=0;
    for(int i=0; i<n; i++)
    {cin>>t[i];
    if(t[i]==1)v++;
    }
    if(v<k){cout<<0; return 0;}
    else{
        cout << (v-k+2)*(v-k+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	18ms	564 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	552 KiB
		8	Accepted	3/3	1ms	316 KiB
		9	Accepted	3/3	1ms	316 KiB
		10	Accepted	2/2	1ms	332 KiB
		11	Accepted	3/3	1ms	316 KiB
		12	Accepted	2/2	1ms	536 KiB
		13	Accepted	3/3	1ms	316 KiB
		14	Accepted	2/2	17ms	616 KiB
		15	Wrong answer	0/2	17ms	636 KiB
		16	Accepted	3/3	17ms	560 KiB
		17	Accepted	3/3	17ms	536 KiB
		18	Wrong answer	0/3	18ms	688 KiB
		19	Accepted	3/3	17ms	748 KiB
		20	Accepted	3/3	17ms	564 KiB
		21	Accepted	3/3	17ms	672 KiB
		22	Wrong answer	0/3	17ms	680 KiB