#dsa #leetcode #problem_solving
Given a signed 32-bit integer x
, return x
with its digits reversed. If reversing x
causes the value to go outside the signed 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) {
int num=0, temp;
for(int i=x; i!=0; i=i/10)
{ temp=i%10;
if ((num > INT_MAX/10)|| (num < INT_MIN/10))
return 0;
num= (num*10) + temp;
}
return num;
}
};
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