Function In C Language

#include<stdio.h>

#include<conio.h>

void main()

{

void sum();

clrscr();

printf("This program calculate the sum of two number");

sum();

getch();

}

void sum()

{

int x,y,result=0;

printf("Enter the value");

scanf("%d%d",&x,&y);

result=x+y;

printf("The sum of two number =%d",result);

getch();

}

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#include<stdio.h>

#include<conio.h>

void main()

{

void sum(int,int)

int x,y;

clrscr();

printf("This program calculate the sum of two number");

printf("Enter the value");

scanf("%d%d",&x,&y);

sum(x,y);

getch();

}

void sum(int a,int b)

{

int result=0;

result=a+b;

printf("The sum of two number =%d",result);

}

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#include<stdio.h>

#include<conio.h>

void main()

{

int sum(int,int)

int x,y,result=0;

clrscr();

printf("This program calculate the sum of two number");

printf("Enter the value");

scanf("%d%d",&x,&y);

result=sum(x,y);

printf("The sum of two number =%d",result);

getch();

}

int sum(int a,int b)

{

int s=0;

s=a+b;

return(s);

}