Given a 32-bit signed integer, reverse digits of an integer.
#define INT_MAX 2147483647
#define INT_MIN (-INT_MAX - 1)
int reverse(int x) {
int y = 0;
while(x != 0)
{
int t = x % 10;
if(y > INT_MAX /10 || y < INT_MIN / 10)
{
return 0;
}
y = y * 10 + t;
x = x/10;
}
return y;
}
