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  1.   #include <stdio.h>
  2. int main(void)
  3. {
  4.     int  i, n, sum;
  5.     printf("Input n:");
  6.     scanf("%d", &n);
  7.     while(i<=n)
  8. {     
  9.      sum=sum+i;
  10.      i++;
  11. }
  12.  
  13.     printf("sum = %d\n", sum);
  14.     return 0;
  15. }
  16.  
Success #stdin #stdout 0s 5320KB
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1
stdout
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Input n:sum = 1
https://ideone.com/stFYdX
language:
C (gcc 8.3)
created:
7 hours ago
visibility:
public

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