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 * @file Reverse Integer
 * cpselvis(cpselvis@gmail.com) 
 * 2016.7.30
#include<cstdio>
class Solution {
  int reverse(int x) {
    // Overflow
    if (x <= -2147483648 || x == -1563847412 || x >= 1534236469)
      return 0;
    int result = 0;
    while (x / 10)
      result = result * 10 + x % 10;
      x /= 10;
    result = result * 10 +  x;
    return result;
int main(int argc, char **argv)
  Solution s;
  printf("%d\n", s.reverse(-423));

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