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  1. #include <stdio.h>
  2.  
  3.  
  4. int main(void) {
  5. 	int n;
  6. 	printf("enter the number");
  7. 	scanf("%d",&n);
  8. 	printf("%d",squaresum(n));
  9. 	return 0;
  10. }
  11. int squaresum(int n)
  12. {
  13. return(n*(n+1)*2*n+1)/6;
  14. }
  15.  
Success #stdin #stdout 0.01s 5304KB
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stdin
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Standard input is empty
stdout
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enter the number229370
https://ideone.com/Yhfh1B
language:
C (gcc 8.3)
created:
1 hour ago
visibility:
public

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