A.扫雷

暴力模拟AC:

#include<iostream>
using namespace std;
const int N=105;
int n,m,map[N][N],ans[N][N];
int dx[8]={-1,-1,0,1,1,1,0,-1};
int dy[8]={0,1,1,1,0,-1,-1,-1};
int count(int x,int y){int cnt=0;for(int i=0;i<8;i++){int xx=x+dx[i];int yy=y+dy[i];if(xx>0&&xx<=n&&yy>0&&yy<=m&&map[xx][yy]==1) cnt++;}return cnt;
}
int main(){cin>>n>>m;for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) cin>>map[i][j];for(int i=1;i<=n;i++) {for(int j=1;j<=m;j++){if(map[i][j]==0) ans[i][j]=count(i,j);else ans[i][j]=9;}}for(int i=1;i<=n;i++) {for(int j=1;j<=m;j++){cout<<ans[i][j]<<" ";}cout<<endl;}return 0;
}

B.九进制转十进制

#include<iostream>
#include<cmath>
using namespace std;
int main(){int ans=0;ans=2*pow(9,3)+2*pow(9,1)+2;cout<<ans<<endl;return 0;
}

C.顺子日期

#include<iostream>
using namespace std;
int ans;
int months[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
int a[8];
bool check(int date){int m=date%10000/100;int d=date%100;if(!m||!d||m>12) return false;if(d>months[m]) return false;return true;
}
bool judge(int num){for(int i=7;i>=0;i--){a[i]=num%10;num/=10;}for(int i=0;i<6;i++){int j=i+1,k=i+2;if(a[j]==a[i]+1&&a[j]==a[k]-1) return true;}return false;
}
int main(){for(int i=20220101;i<=20221231;i++) if(check(i)&&judge(i)) ans++;cout<<ans<<endl;return 0;
}