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Solution.java

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public class Solution {

public int reverse(int x) {

int sign = (x < 0) ? -1 : 1;

if (x == Integer.MIN_VALUE) {

return 0;

} else {

x *= sign;

}

long ret = 0;

while (x != 0) {

ret *= 10;

ret += x % 10;

x /= 10;

}

ret *= sign;

if (ret > Integer.MAX_VALUE || ret < Integer.MIN_VALUE) {

return 0;

} else {

return (int) ret;

}

}

public static void main(String[] args) {

Solution s = new Solution();

System.out.println(s.reverse(-1234567891));

}

}