wap to change string upper case to lower case without using standard library function .

 

#include<stdio.h>
#include<conio.h>
main()
{

  char a[20];
  int x,i=0,n;

  printf("enter yr string ");
  gets(a);

  puts(a);

while(a[i] != '\0')
{
  a[i]= a[i]+32;
  i++;
}
 
printf("lower case string %s",a);


}

output :

enter yr string RAHUL RAHUL lower case string rahul

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