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- #include<stdio.h>
- int main()
- {
- int t,i;
- scanf("%d",&t);
- long long int n=100000,ara[n+3];
- ara[1]=1;
- ara[0]=0;
- int cnt=1;
- for(i=2;i<=n;i++)
- {
- cnt=cnt+4;
- ara[i]=ara[i-1]+cnt;
- }
- while(t--)
- {
- int a;
- scanf("%d",&a);
- printf("%lld\n",ara[a]);
- }
- return 0;
- }
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