VIRTUALS

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HJ11. 数字颠倒

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摘要：
Integer to String reverse.

反转整数

将数字每一位to string，逆序保存。

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/*
 * author: etoa
 * 2021-08-18 17:56:33
 */
#include <bits/stdc++.h>

using namespace std;

int main()
{
    int n;
    cin >> n;
    string s = n ? "" : "0";
    for (; n; n /= 10) {
        s += n % 10 + 0x30;
    }
    cout << s << endl;
    return 0;
}
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/*
 * author: etoa
 * 2021年08月18日18:13:59
 */
import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        StringBuilder sb = n == 0 ? new StringBuilder("0") : new StringBuilder();
        for (; n != 0; n /= 10) {
            sb.append((char)(n % 10 + 0x30));
        }
        System.out.println(sb.toString());
    }
}

原题链接： HJ11. 数字颠倒