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  1. #include <stdio.h>
  2.  
  3. int sum1(int n){
  4. int k=1, s=0;
  5. for(k;k<=n;k++){
  6. s+=k;
  7. }
  8. return s;
  9. }
  10.  
  11. int main(void) {
  12. int i;
  13. for(i=1;i<=10;i++){
  14. printf("%d\n",sum1(i));
  15. }
  16. return 0;
  17. }
  18.  
Success #stdin #stdout 0.01s 5276KB
stdin
Standard input is empty
stdout
1
3
6
10
15
21
28
36
45
55