Change upper case alphabet to lower case alphabate

 

#include<stdio.h>

#include<conio.h>

void main()

{

            char c,x;

            clrscr ();

    printf("enter any upper case char :");

    scanf("%c",&c);

            x=c+32;

    printf("lower case : %c",x);

           getch();

}

Output : 

enter any upper case char :R

lower case : r

[Process completed (code 10) - press Enter]