Calling and Called function & Actual and formal parameters

Let us take an example:

main() //  Here main()---> Calling Function because it is calling calsum


int a,b,c,sum; //------> Actual Parameters

printf("Enter values of a, b & c");

scanf("%d %d %d",&a,&b,&c);


printf("Sum = %d",sum);


calsum(x,y,z) //x,y,z-----> Formal parameters, calsum ---> Called Function

{                          // because it is called by some other function

int d;





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