CF1741A Compare T-Shirt Sizes 题解

• 题目
• • 链接
  • 字面描述
  • • 题面翻译
    • 题目描述
    • 输入格式
    • 输出格式
    • 样例 #1
    • • 样例输入 #1
      • 样例输出 #1
• 代码实现

题目

链接

https://www.luogu.com.cn/problem/CF1741A

字面描述

题面翻译

给定两个字符串 aaa 和 bbb 表示两件衣服的尺码，我们规定：字符串只能由字符 M（中等尺寸）组成或由几个字符 X（可以是 0 个）加上一个字符 S（小尺寸） 或 L（大尺寸） 组成。

你需要比较两件衣服尺码大小，比较方法如下：

• 无论前面有多少个字符 X 的小尺寸，都小于中等尺寸和大尺寸；
• 无论前面有多少个字符 X 的大尺寸，都大于中等尺寸和小尺寸；
• 字符 S 前的字符 X 越多，尺寸越小；
• 字符 L 前的字符 X 越多，尺寸越大。

给定 ttt 组尺寸（1≤t≤1041 \le t \le 10^41≤t≤104），若第一件衣服尺寸大，输出 >，若第二件衣服尺寸大，输出 <，否则输出 =。每组数据换行隔开。

题目描述

Two T-shirt sizes are given: $ a $ and $ b $ . The T-shirt size is either a string M or a string consisting of several (possibly zero) characters X and one of the characters S or L.

For example, strings M, XXL, S, XXXXXXXS could be the size of some T-shirts. And the strings XM, LL, SX are not sizes.

The letter M stands for medium, S for small, L for large. The letter X refers to the degree of size (from eXtra). For example, XXL is extra-extra-large (bigger than XL, and smaller than XXXL).

You need to compare two given sizes of T-shirts $ a $ and $ b $ .

The T-shirts are compared as follows:

• any small size (no matter how many letters X) is smaller than the medium size and any large size;
• any large size (regardless of the number of letters X) is larger than the medium size and any small size;
• the more letters X before S, the smaller the size;
• the more letters X in front of L, the larger the size.

For example:

• XXXS < XS
• XXXL > XL
• XL > M
• XXL = XXL
• XXXXXS < M
• XL > XXXS

输入格式

The first line of the input contains a single integer $ t $ ( $ 1 \le t \le 10^4 $ ) — the number of test cases.

Each test case consists of one line, in which $ a $ and $ b $ T-shirt sizes are written. The lengths of the strings corresponding to the T-shirt sizes do not exceed $ 50 $ . It is guaranteed that all sizes are correct.

输出格式

For each test case, print on a separate line the result of comparing $ a $ and $ b $ T-shirt sizes (lines “<”, “>” or “=” without quotes).

样例 #1

样例输入 #1

6
XXXS XS
XXXL XL
XL M
XXL XXL
XXXXXS M
L M

样例输出 #1

<
>
>
=
<
>

代码实现

刷一道水题

#include
using namespace std;int t;
string a,b;
int main(){cin>>t;while(t--){cin>>a>>b;int lena=a.length(),lenb=b.length();if(a[lena-1]cout<<">"<b[lenb-1]){cout<<"<"<if(a[lena-1]=='L'){if(lena>lenb)cout<<">";else if(lena==lenb)cout<<"=";else cout<<"<";cout<if(lena>lenb)cout<<"<";else if(lena==lenb)cout<<"=";else cout<<">";cout<