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class Solution {
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 public:
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  int reverse(int x) {
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    long res = 0;
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    while (abs(x) > 0) {
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      res = (res + x % 10) * 10;
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      x /= 10;
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    }
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    x < 0 ? res = res / 10 *-1 : res = res / 10;
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    if (res < INT32_MIN || res > INT32_MAX) {
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      res = 0;
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    }
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    return res;
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  }
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};