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  1. #include <stdio.h>
  2.  
  3. int sum3(int n){
  4. int i, x, sum=0;
  5. for(i=1; i<=n; i++){
  6. x=i*i*i;
  7. sum=sum+x;
  8. }
  9. return sum;
  10. }
  11. int sum4(int n){
  12. int i, x, sum=0;
  13. for(i=1; i<=n; i++){
  14. x=i*i*i;
  15. sum=sum+x;
  16. }
  17. return sum;
  18. }
  19. int main(void) {
  20. int n;
  21. for(n=1; n<=10; n++){
  22. sum4(n);
  23. printf("sum4(%d)=%d\n", n, sum4(n));
  24. }
  25. return 0;
  26. }
  27.  
Success #stdin #stdout 0.01s 5316KB
stdin
Standard input is empty
stdout
sum4(1)=1
sum4(2)=9
sum4(3)=36
sum4(4)=100
sum4(5)=225
sum4(6)=441
sum4(7)=784
sum4(8)=1296
sum4(9)=2025
sum4(10)=3025