Write a C Program demonstrating of parameter passing in Functions and returning values

Exercise – 5 Functions

5a1.c

Aim:-a) Write a C Program demonstrating of parameter passing in Functions and returning values.

#include<stdio.h>

void add();

 main()

{

                printf("without parameters, without return values\n");

                add();

}

void add()

{

int a,b,temp;

printf("enter two no's for addition");

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

                printf("the  two no's are\n%d\t%d\n",a,b);

temp=a+b;

printf("after addition \n%d",temp);

}

5a2.c

#include<stdio.h>

void add(int,int);

 main()

{

            int x,y;

            printf("with parameters, with out return values\n");

            printf("enter two no's for addition");

            scanf("%d%d",&x,&y);

            printf("the  two no's are\n%d\t%d\n",x,y);

            add(x,y);

}

void add(int a, int b)

{

int temp;

temp=a+b;

printf("after addition \n%d",temp);

}

5A3.C

#include<stdio.h>

int add();

 main()

{

            int x;

            printf("without parameters, with return values\n");

           

             x=add();

            printf("after addition \n%d",x);

           

}

int add()

{

            int temp,a,b;

            printf("enter two no's for addition");

            scanf("%d%d",&a,&b);

            printf("the  two no's are\n%d\t%d\n",a,b);

            temp=a+b;

            return temp;

}

5A4.C

#include<stdio.h>

int add(int,int);

 main()

{

                int x,y,z;

                printf("with  parameters, with return values\n");

                printf("enter two no's for addition");

                scanf("%d%d",&x,&y);

                printf("the  two no's are\n%d\t%d\n",x,y);

                 z=add(x,y);

                printf("after addition \n%d",z);

               

}

int add(int a,int b)

{

                int temp;

                temp=a+b;

                return temp;

}