C++作业5

#include<iostream>
using namespace std;
int main()
{
const int N=5;
double score
,max,min,aver,i;
cout<<"输入小组成绩：";
for(i=0;i<N;i++)
{
cin>>score[i];
}
max=min=aver=score[0];
for( i=1;i<N;i++)
{
aver+=score[i];
if(score[i]>max) max=score[i];
else if(score[i]<min) min=score[i];
}
aver=aver/10.0;
cout<<max<<" "<<min<<" "<<aver;

return 0;
}

<pre name="code" class="cpp">#include<iostream>
using namespace std;
int main()
{
const int N=10;
int score
,a
,b
,max,min,i,m=0,n=0,j=1,k=1;
double aver;
cout<<"输入小组成绩(0到100)：";
for(i=0;i<N;i++)
{
cin>>score[i];
}
max=min=aver=score[0];
for( i=1;i<N;i++)
{
aver+=score[i];
if(score[i]>max) max=score[i];
else if(score[i]<min) min=score[i];
}
aver=aver/10.0;
cout<<"max="<<max<<endl;
cout<<"min="<<min<<endl;
cout<<"aver="<<aver<<endl;
for( i=0;i<=N;i++)
{
if(score[i]==max) {m++;
cout<<i+1<<" ";}
}cout<<"号同学成绩最高"<<endl;
for( i=0;i<=N;i++)
{
if(score[i]==min) {n++;
cout<<i+1<<" ";}
}cout<<"号同学成绩最低"<<endl;
cout<<endl;
cout<<"考得最高成绩的人数为："<<m<<"人"<<endl;
cout<<"考的最低成绩的人数为："<<n<<"人"<<endl;
return 0;
}

<pre name="code" class="cpp">#include<iostream>
using namespace std;
int main()
{
char str[50];
int i=0,x=0,y=0,z=0;
cout<<"输入字符串:";
gets(str);
while(str[i]!='\0')
{
if(str[i]>='0'&&str[i]<='9') x++;
else if((str[i]>='a'&&str[i]<='z')||(str[i]>='A'&&str[i]<='Z')) y++;
else {z++;}
i++;
}
cout<<"其中的数字个数是: "<<x<<"个"<<endl;
cout<<"其中字母的个数是："<<y<<"个"<<endl;
cout<<"其他字符的个数是："<<z<<"个"<<endl;
return 0;
}