c++第五次作业

求和

#include<iostream>      
using namespace std;        
int main()      
{      
    cout<<"输入十个数:";    
    int a[10],i=0,m=0,n=0;    
    for(i=0;i<=9;i=i+1)    
    {    
     cin>>a[i];    
      if(a[i]>0)    
             m=m+a[i];    
      if(a[i]<0)    
            n=n+a[i];    
    }    
    cout<<"正数的和为";cout<<m<<endl;
	
    cout<<"负数的和为";cout<<n<<endl;  
    return 0;  
}  

字符串

<pre name="code" class="cpp">#include<iostream>    
using namespace std;  
int main()  
{  
    char str[50];  
    int i=0,n=0,j=0,a=0,y=0;  
    cout<<"输入字符串:";  
    gets(str);  
    while(str[i]!='\0')  
    {    
        if(str[i]>='0'&&str[i]<'10') n=n+1
			;
		else if(str[i]>='A'&&str[i]<='Z') a=a+1;
		
        else if(str[i]>='a'&&str[i]<='z') j=j+1; 

		else i=i+1;
		
        y=y+1;  
    }     
	    cout<<"数字个数为";cout<<n<<endl;
	    cout<<"大写字母个数为";cout<<a<<endl;
	    cout<<"小写写字母个数为";cout<<j<<endl;
            cout<<"字符个数为";cout<<y<<endl;
    return 0;  
}  

数组

<pre name="code" class="cpp">#include<iostream>      
using namespace std;      
int main()      
{      
    cout<<"请输入10个数字:";      
      int a[10],b[10],i=0,j=0,k=0,flag;      
      for(i=0;i<10;i=i+1)      
        cin>>a[i];      
      for(i=0;i<10;i=i+1)      
    {      
      flag=1;      
      for(j=0;j<10;j=j+1)      
        {      
          if(i==j)continue;      
          if(a[i]==a[j])      
          flag=0;      
        }      
        if(flag!=0)      
            b[k++]=a[i];      
    }
       cout<<"a数组:"; 
	   
       for(i=0;i<10;i=i+1) 
		   
       cout<<a[i]<<" "; cout<<endl;     
         
    cout<<"b数组:"; cout<<endl;
	
    for(i=0;i<k;i=i+1)  
		
    cout<<b[i]<<" "; cout<<endl; 
     
    return 0;  
}