https://codeforces.com/contest/1106/problem/A

C++版本一

題解：

暴力模擬就行了

/* *@Author: STZG *@Language: C++ */ #include <bits/stdc++.h> #include<iostream> #include<algorithm> #include<cstdlib> #include<cstring> #include<cstdio> #include<string> #include<vector> #include<bitset> #include<queue> #include<deque> #include<stack> #include<cmath> #include<list> #include<map> #include<set> //#define DEBUG #define RI register int using namespace std; typedef long long ll; //typedef __int128 lll; const int N=1000+10; const int MOD=1e9+7; const double PI = acos(-1.0); const double EXP = 1E-8; const int INF = 0x3f3f3f3f; int t,n,m,k,q; int ans,cnt,flag,temp; char a[N][N]; int main() { #ifdef DEBUGfreopen("input.in", "r", stdin);//freopen("output.out", "w", stdout); #endifscanf("%d",&n);//scanf("%d",&t);//while(t--){}for(int i=1;i<=n;i++){scanf("%s",a[i]+1);}for(int i=1;i<=n;i++){for(int j=1;j<=n;j++){if(a[i][j]=='X'&&a[i-1][j-1]=='X'&&a[i-1][j+1]=='X'&&a[i+1][j-1]=='X'&&a[i+1][j+1]=='X')ans++;}}cout << ans << endl;//cout << "Hello world!" << endl;return 0; }

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總結

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