[Educational Codeforces Round 16]A. King Moves
[Educational Codeforces Round 16]A. King Moves
试题描述
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).
输入
输出
输入示例
e4
输出示例
数据规模及约定
无
题解
分支结构。
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cmath>
#include <stack>
#include <vector>
#include <queue>
#include <cstring>
#include <string>
#include <map>
#include <set>
using namespace std; const int BufferSize = 1 << 16;
char buffer[BufferSize], *Head, *Tail;
inline char Getchar() {
if(Head == Tail) {
int l = fread(buffer, 1, BufferSize, stdin);
Tail = (Head = buffer) + l;
}
return *Head++;
}
int read() {
int x = 0, f = 1; char c = getchar();
while(!isdigit(c)){ if(c == '-') f = -1; c = getchar(); }
while(isdigit(c)){ x = x * 10 + c - '0'; c = getchar(); }
return x * f;
} char s[10]; int main() {
scanf("%s", s); if((s[0] == 'a' || s[0] == 'h') && (s[1] == '1' || s[1] == '8')) return puts("3"), 0;
if((s[0] == 'a' || s[0] == 'h') || (s[1] == '1' || s[1] == '8')) return puts("5"), 0;
puts("8"); return 0;
}
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