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/**Bismillahir Rahmanir Rahim.**/ #include <stdio.h> int main() { int a,b; while(1) { scanf("%d", &a); if(a==0) break; else b=(a*(a+1)*((2*a)+1))/6; printf("%d\n",b); } return 0; }
I did not understand
ReplyDeletea*(a+1)*((2*a)+1))/6?
ReplyDelete