Submission #8,246

2024-01-13 20:19:26

cpp17

Accepted 50/50

20ms

4556 KiB

#include<bits/stdc++.h>
using namespace std;

int main(){
    int n, k; cin >> n >> k;
    long long db=0;
    long long ans=0;
    for(int i=1; i<=n; i++){
        int x; cin >> x;
        if(x==1){
            db++;
            if(db>=k) ans += db-k+1;
        }
    }
    cout << ans << endl;
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	3ms	1872 KiB
		2	Accepted	0/0	3ms	2068 KiB
		3	Accepted	0/0	19ms	2308 KiB
		4	Accepted	2/2	3ms	2488 KiB
		5	Accepted	2/2	3ms	2700 KiB
		6	Accepted	2/2	3ms	2936 KiB
		7	Accepted	3/3	2ms	2920 KiB
		8	Accepted	3/3	3ms	3056 KiB
		9	Accepted	3/3	3ms	3140 KiB
		10	Accepted	2/2	3ms	3376 KiB
		11	Accepted	3/3	3ms	3384 KiB
		12	Accepted	2/2	3ms	3588 KiB
		13	Accepted	3/3	3ms	3668 KiB
		14	Accepted	2/2	18ms	3736 KiB
		15	Accepted	2/2	18ms	3720 KiB
		16	Accepted	3/3	19ms	3828 KiB
		17	Accepted	3/3	18ms	3840 KiB
		18	Accepted	3/3	20ms	4096 KiB
		19	Accepted	3/3	19ms	4208 KiB
		20	Accepted	3/3	19ms	4400 KiB
		21	Accepted	3/3	19ms	4468 KiB
		22	Accepted	3/3	19ms	4556 KiB