utility kit

Without further ado, let's go to the program!

1. BMI index detection

#include<iostream>
#include<cmath>
using namespace std;
int main()
{
	int x,a;
	double c,b;
	cin>>x>>a>>b;//a 体重kg b身高m 
	c=round(a*1.0/(b*2));
	if(x==1&&c>=17.9&&c<=23.9)
	{
		cout<<"正常"<<" "<<c;
	}
	if(x==1&&c<17.9)
	{
		cout<<"低体重"<<" "<<c;
	}
	if(x==1&&c>=24&&c<=27.9)
	{
		cout<<"超重"<<" "<<c;
	}
	if(x==1&&c>28)
	{
		cout<<"肥胖"<<" "<<c;
	}
	if(x==0&&c>=17.2&&c<=23.9)
	{
		cout<<"正常"<<" "<<c;
	}
	if(x==0&&c<17.2)
	{
		cout<<"低体重"<<" "<<c;
	}
	if(x==0&&c>=24&&c<=27.9)
	{
		cout<<"超重"<<" "<<c;
	}
	if(x==0&&c>28)
	{
		cout<<"肥胖"<<" "<<c;
	}
} 

2. The system program runs

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int print()
{
	printf(" ╪╪╪╪╪╪╧╧╧╧╧╧╧╧╪╪╪\n");
	printf("╔═══╧╧C语言关机程序 ╧╧══╗\n");
	printf("║※1.实现10分钟内的定时关闭计算机║\n");
	printf("║※2.立即关闭计算机　            ║\n");
	printf("║※3.注销计算机　                ║\n");
	printf("║※4.退出系统　                  ║\n");
	printf("╚════════════════╝\n");
	return 0;
}
int main()
{
	system("title C语言关机程序");//设置cmd窗口标题
	system("mode con cols=48 lines=25");//窗口宽度高度
	system("color 0B");
	system("date /T");
	system("TIME /T");
	char cmd[20]="shutdown -s -t";
	char t[5]="0";
	print();
	int c;
	scanf("%d",&c);
	getchar();
	switch(c)
	{
		case 1:printf("您想在多少秒后自动关闭计算机？（0~600）\n");scanf("%s",t);
		system(strcat(cmd,t));break;
		case 2:system("shutdown -p");break;
		case 3:system("shutdown -l");break;
		case 0:break;
		default:printf("Error!\n");
	}
	system("pause");
	exit(0);
}

3. Drawing numbers

#include<bits/stdc++.h>
using namespace std;
int a[1001]={0};
int main()
{
	int x,y,z;
	cout<<"参选人数 选出的人数"<<endl; 
	cin>>y>>z;
	srand(time(0));
	for(int i=1;i<=z;i++)
	{
		a[i]=rand()%y;
	}
	for(int i=1;i<=z;i++)
	{
		cout<<a[i]<<"   ";
	}
	return 0;
} 

4. Shutdown command

#include<stdlib.h>
using namespace std;
int main()
{
	system("shutdown -s -t 60");
}

5. Naming

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int b,c;
	char a[100][20]={"理","儒","家","嘉",
	"与","轩","俊","宁","携","龙","麒",
	"神","花","虎","思","灵","聪","横",
	"人","一","阴","阳","化","混","易",
	"化","铭","书","殊","坤","努"};
    srand(time(0));
	b=rand()%30;
	c=rand()%30;
    printf("%s%s",a[b],a[c]);
	return 0;
} 

6. Cancel shutdown command

#include<stdlib.h>
using namespace std;
int main()
{
	system("shutdown -a");
}

7. Delete files

#include <stdlib.h>
#include <stdio.h>
int main(void)
{
	system("del d:\\123.txt");
	return 0;
}

8. Body fat percentage test

#include<iostream>
#include<cmath>
using namespace std;
int main()//1是男 2是女
{
	double A,B,c,d;
	int x,a,b;//x是男女，a是腰围，b是体重 
	cin>>x>>a>>b;
	if(x==1)
	{
	    A=a*1.0*0.74;
	    B=b*1.0*0.082+44.74;
	    d=A-B;
	    c=round(d/b*100);
    }
    if(x==0)
    {
    	A=a*1.0*0.74;
	    B=b*1.0*0.082+34.89;
	    d=A-B;
	    c=round(d/b*100);
	}
	if(x==1&&c>=15&&c<=18)
	{
		cout<<"体脂正常"<<"  "<<c;
	}
	if(x==1&&c<15)
	{
		cout<<"偏瘦"<<"  "<<c;
	}
	if(x==1&&c>18)
	{
		cout<<"偏胖"<<"  "<<c;
	}
	if(x==0&&c>=20&&c<=25)
	{
		cout<<"体脂正常"<<"  "<<c;
	}
	if(x==0&&c<20)
	{
		cout<<"偏瘦"<<"  "<<c; 
	}
	if(x==0&&c>25)
	{
		cout<<"偏胖"<<"  "<<c;
	}
	return 0;
}

9. Statistics score

#include<bits/stdc++.h>
using namespace std;
struct student
{
	string name;
	int score1;
	int score2;
	int score3;
	int score4;
};
student a[101];
int main()
{
	int n;
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>a[i].name;
		cin>>a[i].score1;
		cin>>a[i].score2;
		cin>>a[i].score3;
		a[i].score4+=a[i].score1;
		a[i].score4+=a[i].score2;
		a[i].score4+=a[i].score3;
	}
	for(int i=1;i<=n;i++)
	{
		cout<<a[i].name<<"  ";
		cout<<a[i].score1<<"  ";
		cout<<a[i].score2<<"  ";
		cout<<a[i].score3<<"  ";
		cout<<a[i].score4<<"  ";		
	}
	return 0;
}