Submission #8,433

2024-01-16 09:38:28

cpp17

Accepted 50/50

20ms

4184 KiB

#include <iostream>

using namespace std;

int main()
{

long long n,k,db=0,jo=0,x;
cin>>n>>k;
for(int i=1;i<=n;i++)
{
    cin>>x;
    if(x==1) db++;
}
if((db-k+1)>=0 and (db-k+2)>=0) cout<<(db-k+1)*(db-k+2)/2<<endl;
else cout<<0;
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	3ms	1876 KiB
		2	Accepted	0/0	3ms	2120 KiB
		3	Accepted	0/0	19ms	2332 KiB
		4	Accepted	2/2	3ms	2572 KiB
		5	Accepted	2/2	3ms	2788 KiB
		6	Accepted	2/2	2ms	2868 KiB
		7	Accepted	3/3	3ms	2836 KiB
		8	Accepted	3/3	2ms	2836 KiB
		9	Accepted	3/3	3ms	3036 KiB
		10	Accepted	2/2	3ms	3128 KiB
		11	Accepted	3/3	3ms	3340 KiB
		12	Accepted	2/2	3ms	3580 KiB
		13	Accepted	3/3	3ms	3800 KiB
		14	Accepted	2/2	17ms	3880 KiB
		15	Accepted	2/2	18ms	3872 KiB
		16	Accepted	3/3	19ms	3964 KiB
		17	Accepted	3/3	18ms	4068 KiB
		18	Accepted	3/3	20ms	3948 KiB
		19	Accepted	3/3	19ms	3948 KiB
		20	Accepted	3/3	18ms	4060 KiB
		21	Accepted	3/3	19ms	4060 KiB
		22	Accepted	3/3	18ms	4184 KiB