Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the s
igned 32-bit integer range [-231, 231 - 1], then return 0.Assume the environment does not allow you to store 64-bit integers (signed or unsigned).
Example 1:
Input: x = 123
Output: 321
Example 2:
Input: x = -123
Output: -321
Example 3:
Input: x = 120
Output: 21
class Solution
{
public:
int reverse(int x)
{
long long int x1=abs(x);
long long int ans=0;
while(x1>0)
{
long long int temp=x1%10;
ans=ans*10+temp;
x1/=10;
}
if(ans>-pow(2,31) && ans<pow(2,31)-1){if(x<0){return (-1)*ans;}else{return ans;}}
return 0;
}
};
