24 lines
533 B
C++
24 lines
533 B
C++
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// 输入一个数，判断它是否为回文数，即正着读和倒着读都一样
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#include <iostream>
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using namespace std;
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int main()
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{
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int n, temp, res;
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cout << "请输入一个数：";
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cin >> n;
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temp = n; // 拷贝一份 n
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res = 0;
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// 原理：将 n 从个位开始取出，然后乘以 10 加到 res 中
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for (; temp > 0; temp /= 10)
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res = res * 10 + temp % 10;
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if (res == n)
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cout << "是回文数" << endl;
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else
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cout << "不是回文数" << endl;
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return 0;
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}
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