Submission #9,052

2024-02-13 09:02:57

cpp17

Accepted 50/50

19ms

4156 KiB

#include <iostream>
#include <fstream>

using namespace std;
int n, m;


int main()
{
    ifstream f("be.in");
    cin>>n>>m;
    int k=0;
    for(int i=1;i<=n;i++){
        int x;
        cin>>x;
        if(x==1){k++;}
    }
    long long s=0;
    for(int i=1;i<=k-m+1;i++){
        for(int j=i+m-1;j<=k;j++){
            s++;
        }
    }
    cout<<s;




    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	3ms	1812 KiB
		2	Accepted	0/0	3ms	2000 KiB
		3	Accepted	0/0	19ms	2216 KiB
		4	Accepted	2/2	3ms	2456 KiB
		5	Accepted	2/2	3ms	2684 KiB
		6	Accepted	2/2	2ms	2756 KiB
		7	Accepted	3/3	3ms	2884 KiB
		8	Accepted	3/3	3ms	3100 KiB
		9	Accepted	3/3	3ms	3144 KiB
		10	Accepted	2/2	3ms	3144 KiB
		11	Accepted	3/3	3ms	3152 KiB
		12	Accepted	2/2	3ms	3276 KiB
		13	Accepted	3/3	3ms	3664 KiB
		14	Accepted	2/2	18ms	3652 KiB
		15	Accepted	2/2	18ms	3720 KiB
		16	Accepted	3/3	19ms	3716 KiB
		17	Accepted	3/3	18ms	3720 KiB
		18	Accepted	3/3	19ms	3832 KiB
		19	Accepted	3/3	19ms	3724 KiB
		20	Accepted	3/3	19ms	3812 KiB
		21	Accepted	3/3	19ms	4060 KiB
		22	Accepted	3/3	19ms	4156 KiB