codeforces 710A King Moves(水)

Posted 2020-08-04 PrayG

output

standard output

The only king stands on the standard chess board. You are given his position in format "cd", where c is the column from ‘a‘ to ‘h‘ and dis the row from ‘1‘ to ‘8‘. Find the number of moves permitted for the king.

Check the king‘s moves here https://en.wikipedia.org/wiki/King_(chess).

King moves from the position e4

Input

The only line contains the king‘s position in the format "cd", where ‘c‘ is the column from ‘a‘ to ‘h‘ and ‘d‘ is the row from ‘1‘ to ‘8‘.

Output

Print the only integer x — the number of moves permitted for the king.

Example

input

e4

output

8

 

 分析：给你横纵坐标，瞎搞就好。

 1 #include<bits/stdc++.h>
 2 using namespace std;
 3 int main()
 4 {
 5     char str[3];
 6     ios::sync_with_stdio(false);
 7     cin.tie(0);
 8     cin >> str;
 9     if(str[0] == ‘a‘)
10     {
11         if(str[1] == ‘8‘ || str[1] == ‘1‘)
12         cout << 3 << endl;
13         else
14         cout << 5 << endl;
15     }
16     else if(str[0] == ‘h‘)
17     {
18         if(str[1] == ‘8‘ || str[1] == ‘1‘)
19         cout << 3 << endl;
20         else
21             cout << 5 << endl;
22     }
23     else if(str[1] == ‘8‘ || str[1] == ‘1‘)
24     {
25         cout << 5 << endl;
26     }
27     else
28         cout << 8 << endl;
29     return 0;
30 }

 

以上是关于codeforces 710A King Moves(水)的主要内容，如果未能解决你的问题，请参考以下文章

Codeforces 992 E. Nastya and King-Shamans

Codeforces 1089K - King Kog's Reception - [线段树][2018-2019 ICPC, NEERC, Northern Eurasia Finals P

Nastya and King-Shamans CodeForces - 992E (线段树二分)

Codeforces Round #489 (Div. 2) E. Nastya and King-Shamans

CF1033A. King Escape的题解

Ball CodeForces - 12D