write a complete C++ program to perform an analysis of ex scores. The input to t

Question

write a complete C++ program to perform an analysis of ex scores. The input to the program is a sequence of N ex scores, followed by -1. Example:

Your program may assume there is at least one ex score in the input sequence, i.e. N > 0. Also assume the ex scores are valid, i.e. in the range 0..100, inclusive. Finally, assume the sequence is always followed by a -1 to denote the end of the sequence --- do not include the -1 in the analysis.

The output from your program is an analysis of the ex scores: the # of scores, average, max, min, and a histogram of A, B, C, D, and F scores (assuming a standard 90-80-70-60 scale). For example, given the input sequence shown above, the output from your program should be the following:

Explanation / Answer

#include <iostream>

using namespace std;

int main()

{

// your code goes here

int sum=0;

int n=0,a[10],i=0;

int A=0,B=0,C=0,D=0,E=0;

int max=0,sum=0,min=100,avg=0;

cout<<"Sequence of N";

while(a[i]!=-1)

{

cin>>a[i];

n++;

sum=sum+a[i];

if(max<a[i])

max=a[i];

if(min>a[i])

min=a[i];

if(a[i]>90&&a[i]<100)

A++;

else if(a[i]>80&&a[i]<90)

B++;

else if(a[i]>70&&a[i]<80)

C++;

else if(a[i]>60&&a[i]<70)

D++;

else

E++;

i++;

}

avg=sum/n;

cout<<"# Scores 7 ";

cout<<" Average:"<<avg;

cout<<" Max:"<<max;

cout<<" Min"<<min;

cout<<" 90-100: "<<A;

cout<<" 80-90: "<<B;

cout<<" 70-80:"<<C;

cout<<" 60-70:"<<D;

cout<<" <60:" << E;

return 0;

}

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