Write a 'C' program .Input a and b .Find the smallest number greater than b by inter changing the digits of a and if not possible return -1
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Answer:
#include<stdio.h>
#include<conio.h>
main()
{
int a, b,rev=0,d,return;
do
{
printf("Enter two numbers a and b \n");
scanf("%d %d", &a, &b)
}while(b<a);
while(a!=0)
{
d=a%10;
rev=(rev*10)+d;
a=a/10;
if(rev>b)
{
printf("%d is greater than %d \n", rev,b);
}
else if (rev==b)
{
print{"Both are equal \n");
}
else
{
return= -1;
printf("%d",return)
}
}
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