Here you will find solutions of many problems on spoj. If you want solution of some problem which is not listed in blog or have doubt regarding any spoj problem (which i have solved) or any programming concept (data structure) you can mail me @ raj.nishant360@gmail.com
And my humble request to you all that don't copy the code only try to understand the logic and algorithm behind the code. I have started this because if you tried as hard as you can and still can't find any solution to the problem then you can refer to this.
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Wednesday, January 22, 2014

TRICOUNT-Counting Triangles

Counting Triangles

here the solution for tricount spoj or counting triangles spoj.


#include<stdio.h>
int main()
{
    int t;
    scanf("%d",&t);
    while(t--)
    {
        long long unsigned num,sum;
        scanf("%llu",&num);
        if(num%2==0)
        sum=(num*(num+2)*((2*num)+1))/8;
        else
        sum=((num*(num+2)*((2*num)+1))-1)/8;
        printf("%llu\n",sum);
    }
    return 0;
}