A. My First Sorting Problem

You are given two integers x and y.

Output two integers: the minimum of x and y, followed by the maximum of x and y.

题意:

给你两个整数求出最小值和最大值

Code:

#include<bits/stdc++.h>
	
using namespace std;
#define debug(x) cerr << #x << ": " << x << '\n';
	
void solve() {
	int x, y; cin >> x >> y;
	cout << min(x, y) << ' ' << max(x, y) << '\n';
}
	
int main() {
	ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	int _ = 1; cin >> _;
	while(_--) solve();
	return 0;
}

B. Different String

You are given a string s consisting of lowercase English letters.

Rearrange the characters of s to form a new string r that is not equal to s, or report that it's impossible.

给你一个字符串包含小写字母 改变s的位置使得r != s 是否存在 否则不可能

思路:

不难发现 只要字符串不是相同的字母 那么就可以改变它的位置

Code:

#include<bits/stdc++.h>
	
using namespace std;
#define debug(x) cerr << #x << ": " << x << '\n';
	
void solve() {
	string s; cin >> s;
	int len = s.size();
	bool ok = false;
	for (int i = 1; i < len; i++) {
		if (s[i] != s[i - 1]) {
			swap(s[i], s[i - 1]);
			ok = true;
		}
	}
	if (ok) cout << "YES\n" << s << '\n';
	else cout << "NO\n";
}
	
int main() {
	ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	int _ = 1; cin >> _;
	while(_--) solve();
	return 0;
}