main(){double s = 0;int i=scanf();int m=0;for (m=1;mmain(){ int N,i; long int s=0,s1=0; printf("Input the N:"); scanf("%d",&N); while(Nint main(void){int n,count=1;long s=0,s1=0,s2=0;printf("\nInput n:\n");scanf("%d",&n);while(count void main() {int N;printf("please input a integer:");scanf("%d",&N);printf(%d,sum(N)); } int sum(int n) {int s=0,k=0,i;for(i=1;i main(){int s=0,n,i,a,j;scanf("%d",&n);for(i=1;i<=n;i++) {a=0; for(j=1;j<=i;j++) a=a+j ;s=s+2*a; }printf("%d",s);getch();}
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