Question

I need to write a program in c++

Suppose a teacher weights four exams. He gives 10%, 25%, 30%, and 35%.

Write a program that reads ten sets of four grades, prints the weighted average of each set, and prints the unweighted average of each test. The number of students should be in a global constant.

Please help. Thank you

Answer 1

#include <iostream>
#include <string>
using namespace std;
int NUM = 2;
int main()
{

int student[NUM][4];
cout<<"Enter marks for: "<<NUM <<" students "<<endl;
for(int i=0;i<NUM;++i){
   for(int j=0;j<4;++j){
       cin>>student[i][j];
       if(j==0){
           student[i][j] = student[i][j]*0.1;
       }else if(j==1){
           student[i][j] = student[i][j]*0.25;
       }else if(j==2){
           student[i][j] = student[i][j]*0.3;
       }else{
           student[i][j] = student[i][j]*0.35;
       }
    }  
}

    double average = 0;
   for(int i=0;i<NUM;++i){
       average = 0;
   for(int j=0;j<4;++j){
       average = average + student[i][j];
    }
    cout<<"\nWeighted average of student "<<(i+1)<<": "<<average/4;
}
}

===========================
See Output


1 #include <iostream> 2 3 using namespace std; 4 int NUM -2; 5 int mainO #include <string» 7 int student [NUM] [4]; cout<<" Enter marks for: "<<NUM <<" students "< endl 10 for(int i-0;i<NUM;++i)I 12 13 14 15 ▼ 16 17 18 19 ▼ 20 cin>>student[i]Ljl; if(j-0) else if(j-1) else if(j--2)i yelsei student[i][j] = student[i][j]*0.1; student [i][j] = student [i][j]*0.25; student[i][j] studentLi][j]*0.3; student[i][j] - studentLi][j]*0.35; Get URL options compilation execution Enter marks for: 2 students 1 2 3 4 Weighted average of student 1: 0.25 Weighted average of student 2: 0.5


Thanks, let me know if there is any concern.