C is very powerful language and mother of many language. If you learn C and C++ you can strong you base. In programming If your base is strong you can build anything.
How to Reverse Integer in C Language?
Lets take a example if we have 321 integer and we want it in reverse order. It should be print 123.
We will need a function so we can reuse it. We can call it reverseOrder or something that sound slimier to their work.
How to Slice String in C Language?
reverseOrder Function
It should return integer after the process.
C
static int reverseOrder(int x)
{
int y = 0;
while (x != 0) {
int n = x % 10;
if (y > INT_MAX / 10 || y < INT_MIN / 10) {
return 0;
}
y = y * 10 + n;
x /= 10;
}
return y;
}Its a simple function that process the integer and make it reverse.
Now let we execute it main.
C
int main(void)
{
int x = 123;
printf("Original integer: %12d",x);
printf("\nReverse integer : %12d",reverseOrder(x));
return 0;
}Whole File
C
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
static int reverseOrder(int x)
{
int y = 0;
while (x != 0) {
int n = x % 10;
if (y > INT_MAX / 10 || y < INT_MIN / 10) {
return 0;
}
y = y * 10 + n;
x /= 10;
}
return y;
}
int main(void)
{
int x = 123;
printf("Original integer: %12d",x);
printf("\nReverse integer : %12d",reverseOrder(x));
return 0;
}
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