CodeForces 598A:Tricky Sum【数学】

Tricky Sum
Time Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u
Submit  Status  Practice  CodeForces 598A

Description

In this problem you are to calculate the sum of all integers from 1 to n, but you should take all powers of two with minus in the sum.

For example, for n = 4 the sum is equal to  - 1 - 2 + 3 - 4 =  - 4, because 12 and 4 are 2021 and 22 respectively.

Calculate the answer for t values of n.

Input

The first line of the input contains a single integer t (1 ≤ t ≤ 100) — the number of values of n to be processed.

Each of next t lines contains a single integer n (1 ≤ n ≤ 109).

Output

Print the requested sum for each of t integers n given in the input.

Sample Input

Input
2
4
1000000000
Output
-4
499999998352516354

Hint

The answer for the first sample is explained in the statement.

AC-code:
#include<cstdio>
int main()
{
	int t,temp;
	long long n,ans;
	scanf("%d",&t);
	while(t--)
	{
		scanf("%lld",&n);
		ans=(n+1)*n/2;
		temp=1;
		while(n)
		{
			ans-=2*temp;
			temp*=2;
			if(n==1)
				break;
			n/=2;
		}
		printf("%lld\n",ans);
	}
}


你可能感兴趣的:(CodeForces 598A:Tricky Sum【数学】)