指標應用1

#include<iostream>

#define students 10

#define grades 3

using namespace std;

float total(float*);

float mean(float*);

float total(float*a){

        float all;

        for(int i=0;i<grades;i++)

                all += *(a+i);

                return all;

}

float mean(float*all){

        return total(all)/grades;

}

int main(){

        int   all[students],average[students];

    float test[grades];

    float *a=test;

        for(int i=0;i<students;i++){

                cout<<"請輸入第"<<i+1<<"位學生的3科成績(國,英,數):"<<endl;

                for(int j=0;j<grades;j++)

                        cin>>*(a+j);

                    all[i]=total(a);

                    average[i]=mean(a);}

                for(int i=0;i<students;i++)

                        cout<<"第"<<i+1<<"位學生的(總和,平均)"

                            <<all[i]

                            <<" , "

                            <<average[i]<<endl;

}