项目六学生成绩的统计

#include <iostream>
using namespace std;
struct Student
{
char num[13];
char name[10];
int cpp;
int math;
int english;
int grade;
double average;
};
const int N=3;
int main( )
{
int i;
Student stu
;
for(i=0; i<N; ++i)
{
cout<<"请依次输入第"<<i+1<<"名同学的学号,姓名,三科成绩";
cin>>stu[i].num>>stu[i].name>>stu[i].cpp>>stu[i].math>>stu[i].english;
stu[i].grade=stu[i].cpp+stu[i].math+stu[i].english;
stu[i].average=stu[i].grade/3.0;

}
for(i=0; i<N; ++i)
{
cout<<stu[i].num<<" "<<stu[i].name<<" "<<"总成绩"<<stu[i].grade<<"平均成绩"<<stu[i].average;
cout<<endl;
}

return 0;
}

#include<iostream>
#include<string.h>
using namespace std;
struct Student
{
char num[13];
char name[10];
int cpp;
int math;
int english;
int grade;
double average;

};
void calculate(Student s[],int n);
void sort1(Student [],int);      //按总分降序排序
void sort2(Student [],int);      //按学号升序排序
void output(Student [],int);     //输出成绩单
void outputExcellent(Student [],int);  //输出优秀者：总分超285，单科不低于90
int main()
{
Student stu[]= {
{"201152501104","Tom",65,69 ,68 },
{"201152501114","Jeery",94 ,89 ,63 },
{"201152501138","Speike",67 ,62 ,84 },
{"201152501204","Tyke",100 ,95 ,91 },
{"201152501202","Tuffy",59 ,80 ,55 },
{"201152501115","Butch",100 ,99 ,89 },
{"201152501201","Lightning",95 ,92 ,99 },
{"201152501145","Topsy",88 ,56 ,67 },
{"201152501203","Droopy",62 ,62 ,95 },
{"201152501140","Drupa",80 ,60 ,86 },
{"201152501205","Buzz",73 ,90 ,94}
};
int stuNum=sizeof(stu)/sizeof(stu[0]);
calculate(stu,stuNum);
cout<<"下面是成绩单:"<<endl;
output(stu,stuNum);
cout<<"优秀者名单:"<<endl;
outputExcellent(stu,stuNum);
sort1(stu,stuNum);
cout<<"按总分降序排序后:"<<endl;
output(stu,stuNum);
sort2(stu,stuNum);
cout<<"按学号升序排序后:"<<endl;
output(stu,stuNum);
return 0;
}
void calculate(Student s[],int n)
{
int i;
for(i=0; i<n; ++i)
{
s[i].grade=s[i].cpp+s[i].math+s[i].english;
s[i].average=s[i].grade/3.0;
}

}
void sort1(Student s[],int n)
{
int i,j;
Student temp;
for(i=0; i<n; ++i)
for(j=i; j<n; ++j)
if(s[i].grade<s[j].grade)
{
temp=s[j];
s[j]=s[i];
s[i]=temp;
}
}

void sort2(Student s[],int n)
{
int i,j;
Student temp;
for(i=0; i<n; ++i)
for(j=i; j<n; ++j)
if(strcmp(s[i].num,s[j].num)<0)
{
temp=s[j];
s[j]=s[i];
s[i]=temp;
}
}

void output(Student s[],int n)
{
int i;
for(i=0; i<n; ++i)
{
cout<<s[i].num<<" "<<s[i].name<<" "<<"总成绩"<<s[i].grade<<"平均成绩"<<s[i].average;
cout<<endl;
}
}

void outputExcellent(Student s[],int n)
{
int i;
for(i=0;i<n;++i)
{
if(s[i].grade>285&&s[i].cpp>=90&&s[i].math>=90&&s[i].english>=90)
cout<<s[i].num<<" "<<s[i].name<<" "<<"总成绩"<<s[i].grade<<"平均成绩"<<s[i].average<<endl;

}
}