c++作业5

#include<iostream>
using namespace std;
int main()
{
const int n=10;
int	a
,b
,x,i,j,k=0,l;
for(i=0;i<n;i++)
cin>>a[i];
for(i=0;i<n;i++)
{x=0;
for(j=0;j<n;j++)
{if(a[i]!=a[j]) x+=1;}
if(x==9)
{
b[k]=a[i];
k+=1;
}
}
cout<<"不重复的数组：";
for(l=0;l<k;l++)
cout<<b[l]<<",";
return 0;
}

#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
char str[50];
int i=0,n=0,j=0,k=0,l=0;
cout<<"输入字符串:";
gets(str);
while(str[i]!='\0')
{
if(str[i]>='0'&&str[i]<='9')
n++;
else if (str[i]>='a'&&str[i]<='z')
j++;
else if (str[i]>='A'&&str[i]<='Z')
k++;
else l++;
i++;
}
cout<<"数字个数: "<<n<<'\n';
cout<<"小写字母个数: "<<j<<'\n';
cout<<"大写字母个数: "<<k<<'\n';
cout<<"其它字符个数: "<<l;
return 0;
}

#include<iostream>
using namespace std;
int main()
{
const int n=10;
int a
,i,sum1=0,sum2=0;
cout<<"输入10个数：";
for(i=0;i<n;i++)
{

cin>>a[i];
if(a[i]>0)
sum1=sum1+a[i];
else if(a[i]<0)
sum2=sum2+a[i];
}
cout<<"正数和；"<<sum1<<'\n';
cout<<"负数和；"<<sum2;
return 0;
}