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  1. #include<stdio.h>
  2.  
  3.  void sum();// function declaration
  4.   void main()
  5.   {
  6.     sum(); // function calling  
  7.   }
  8.  void sum()  // function definition
  9.  {
  10.    int a , b, sum=0;
  11.    printf("enter the two numbers:");
  12.    scanf("%d%d", &a,&b);
  13.    sum=a+b;
  14.    printf("sum=%d",sum);
  15. }
Success #stdin #stdout 0s 5288KB
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stdin
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Standard input is empty
stdout
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enter the two numbers:sum=-1045772529
https://ideone.com/29tPZn
language:
C (gcc 8.3)
created:
17 hours ago
visibility:
public

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