Submission #17,999

2025-09-25 07:16:39

cpp17

Accepted 50/50

18ms

600 KiB

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main()
{
    ll int i, n,k, num=0, d, sum=0;
    cin >> n>> k;
    for(i=0; i<n; i++) 
    {
        cin >> d;
        num+=d;
    }
    if(num<k)
    {
        cout << 0;
        return 0;
    }
    for(i=k; i<=num; i++)sum+=num-i+1;
    cout << sum;
    return 0;
}

	Sum	Test	Verdict		Time	Memory
base	50/50
		1	Accepted	0/0	1ms	316 KiB
		2	Accepted	0/0	1ms	316 KiB
		3	Accepted	0/0	17ms	564 KiB
		4	Accepted	2/2	1ms	316 KiB
		5	Accepted	2/2	1ms	316 KiB
		6	Accepted	2/2	1ms	532 KiB
		7	Accepted	3/3	1ms	316 KiB
		8	Accepted	3/3	1ms	500 KiB
		9	Accepted	3/3	1ms	316 KiB
		10	Accepted	2/2	1ms	316 KiB
		11	Accepted	3/3	1ms	316 KiB
		12	Accepted	2/2	1ms	316 KiB
		13	Accepted	3/3	1ms	328 KiB
		14	Accepted	2/2	17ms	584 KiB
		15	Accepted	2/2	17ms	588 KiB
		16	Accepted	3/3	18ms	592 KiB
		17	Accepted	3/3	17ms	588 KiB
		18	Accepted	3/3	18ms	600 KiB
		19	Accepted	3/3	17ms	564 KiB
		20	Accepted	3/3	18ms	564 KiB
		21	Accepted	3/3	18ms	564 KiB
		22	Accepted	3/3	17ms	564 KiB