HDU 2562.奇偶位互換

題目:http://acm.hdu.edu.cn/showproblem.php?pid=2562

AC代碼(C++):

#include <iostream>
#include <queue>
#include <set>
#include <string>
#include <algorithm>
#include <string.h>
#include <math.h>

#define INF 0x3f3f3f3f
#define eps 1e-8
typedef unsigned long long ULL;

using namespace std;

char str[55];

int main() {
    int t;
    cin >> t;
    while (t--) {
        cin >> str;
        for (int i = 0; str[i] != '\0'; i++) {
            if (i % 2 == 0) {
                char tmp = str[i];
                str[i] = str[i + 1];
                str[i + 1] = tmp;
            }
        }
        cout << str << endl;
    }

    //system("pause");
}

總結: 水題.