#include<bits/stdc++.h>
using namespace std;
int a[10][10],b[10][10];
int dx[] = {-1, 1, 0, 0, -1, -1,  1, 1};
int dy[] = {0, 0,-1, 1, -1,  1, -1, 1};

int main(){
	int m,n;
	cin>>m>>n;
	a[5][5] = m;
	for(int d = 1;d <= n;d++){
		memset(b,0,sizeof b);
		for(int i = 1;i <= 9;i++){
			for(int j = 1;j <= 9;j++){
				if(a[i][j]!=0){
					b[i][j] += 2 * a[i][j];
					for(int k = 0;k < 8;k++){
						int nx = i + dx[k];
						int ny = i + dy[k];
						if(nx > 0 && nx < 10 && ny > 0 && ny < 10)
							b[nx][ny] += a[i][j];
					}
				}
			}
		}
		for(int i = 1;i <= 9;i++){
			for(int j = 1;j <= 9;j++)
				a[i][j] = b[i][j];
		}
	}
	for(int i = 1;i <= 9;i++){
		for(int j = 1;j <= 9;j++)
			cout << b[i][j] << " ";
		cout<<endl;
	}
	return 0;
}

细菌的繁殖与扩散

#include<bits/stdc++.h>
using namespace std;
int a[10][10],b[10][10];
int dx[] = {-1, 1, 0, 0, -1, -1,  1, 1};
int dy[] = {0, 0,-1, 1, -1,  1, -1, 1};

int main(){
	int m,n;
	cin>>m>>n;
	a[5][5] = m;
	for(int d = 1;d <= n;d++){
		memset(b,0,sizeof b);
		for(int i = 1;i <= 9;i++){
			for(int j = 1;j <= 9;j++){
				if(a[i][j]!=0){
					b[i][j] += 2 * a[i][j];
					for(int k = 0;k < 8;k++){
						int nx = i + dx[k];
						int ny = i + dy[k];
						if(nx > 0 && nx < 10 && ny > 0 && ny < 10)
							b[nx][ny] += a[i][j];
					}
				}
			}
		}
		for(int i = 1;i <= 9;i++){
			for(int j = 1;j <= 9;j++)
				a[i][j] = b[i][j];
		}
	}
	for(int i = 1;i <= 9;i++){
		for(int j = 1;j <= 9;j++)
			cout << b[i][j] << " ";
		cout<<endl;
	}
	return 0;
}

自己手敲劣质小游戏

小游戏

#include <bits/stdc++.h>
#include <windows.h>
#include <time.h>
using namespace std;
signed main(){
	cout<<"欢迎来到??世界"<<endl<<"请输入您在游戏中的名称："; 
	system("color Cf");
	string a;
	cin>>a;
	cout<<endl; 
	cout<<"正在加载中，请稍后..."<<endl; 
	cout<<"%10 ▏"<<endl;
	Sleep(500);
	cout<<"%20 ▏▎"<<endl;
	Sleep(500);
	cout<<"%30 ▏▎▍"<<endl;
	Sleep(500);
	cout<<"%40 ▏▎▍▌"<<endl;
	Sleep(500);
	cout<<"%50 ▏▎▍▌▋"<<endl;
	Sleep(500);
	cout<<"%90 ▏▎▍▌▋▊▉"<<endl;
	Sleep(500);
	cout<<"正在进入中..."<<endl;
	Sleep(2500);
	cout<<"进入成功！"<<endl;
	Sleep(600);
	cout<<"△▽○◇□☆▲▼●◆■★"<<endl;
	cout<<"游戏名：我闲的？！"<<endl;
	cout<<"作者：柳"<<endl;
	cout<<"您好！！\n~~你给我查看规则，否则根本不会玩~~"<<endl;
	cout<<"规则：\n↖ ↑ ↗\n← ? →\n↙ ↓ ↘\n";
	cout<<"您好，尊贵的"<<a<<"用户，已为您新建世界\n"; 
	cout<<"加载地形中...\n";
	cout<<"%10 ▏"<<endl;
	Sleep(500);
	cout<<"%20 ▏▎"<<endl;
	Sleep(500);
	cout<<"%30 ▏▎▍"<<endl;
	Sleep(500);
	cout<<"%40 ▏▎▍▌"<<endl;
	Sleep(500);
	cout<<"%50 ▏▎▍▌▋"<<endl;
	Sleep(500);
	cout<<"%90 ▏▎▍▌▋▊▉"<<endl;
	Sleep(1500);
	cout<<"进入成功！\n";
	cout<<"规则：\n";
	cout<<"	我建议你晚上不要出了你的家~~~\n";  
	return 0;
}

https://qdezoj1.cpolar.cn/

#include<iostream>
using namespace std;
int main(){
	long long k,day=1,coin=1,sum=0;
	cin>>k;
	for(int i=1; i<k; ++i){
		sum+=coin;
		day++;
		if( ){
			coin++;
		}
	}
	cout<<sum;
	return 0;
}

#include<bits/stdc++.h>
using namespace std;
const int N=100008;
int a[N];
double b[N];
void sel(int n){
	for(int i=1;i<n;++i)
		for(int j=i+1;j<=n;++j){
			if(b[i]<b[j]){
			    swap(b[i],b[j]);
			    swap(a[i],a[j]);
			}
		}
	return ;
}

int main(){
    int n,x,cnt=0;
    cin>>n>>x;
    for(int i=1;i<=n;++i){ 
    	cin>>a[i]>>b[i];
    	b[i]*=1.0; 
		}	
    sel(n);
    for(int i=1;i<=n;++i){
    	if(i==x)
    	    cout<<a[i]<<" "<<b[i];
    }
    return 0;
}