Calculate the highest, lowest and average mark key in by user (c++)

Calculate the highest, lowest and average mark key in by user.

This is the example to calculate the highest, lowest and average mark key in by user.
this program also count the number of student who get A,B,C,D or E from
the information key in by the user.

Sample Output:

Source code:

#include <iostream> using namespace std; int main(){ cout<< "\nStatistic of Class Performance\n\n"; int markA = 0,markB = 0,markC = 0,markD = 0,markE = 0; // declare dulu semua mark jadi 0 untuk buat counting int max = 0, min = 0; //declare max untuk highes mark dan min untuk lowest mark double num[10],sum=0.0,average; // declare array tetapkan 10 sbb 10 orang, sum dan average untuk kira average nanti for(int i=0; i<10 ; i++) // kiraan dari 0 ke 9 untuk looping { cout<<"\tEnter mark student "<<i+1<<" : "; cin>>num[i]; /*Mula dari sini mengira berapa student dalam kumpulan grade tertentu*/ if(num[i] >= 80 && num[i] <= 100) { markA = markA +1 ; } else if(num[i] >= 70 && num[i] <= 79) { markB = markB+1; } else if(num[i] >=50 && num[i] <=69) { markC = markC+1; } else if(num[i] >=40 && num[i] <= 49) { markD= markD+1; } else { markE= markE+1; } /*Tamat kira*/ sum+=num[i]; // kira total mark dalam looping } max = num[0]; // letakkan dulu max kepada mark dalam array 0 min = num[0]; // letakkan dulu min kepada mark dalam array 0 for(int i=0; i<10 ; i++) // kiraan dari 0 ke 9 untuk looping { if(num[i]>max) // jika mark dalam array yang terdahulu lebih besar dari max { max = num[i]; // jadikan dia highest mark } else { max = max; // jika tidak tiada apa yang berubah } if(num[i]<min) // jika mark dalam array yang pertama terdahulu lebih kecil dari min { min = num[i]; // jadikan dia lowest mark } else { min = min; // jika tidak tiada apa yang berubah } } /* Mula display semua kiraa grade dari student*/ cout<<endl<<"\tGrade"<<"\tThe Number Of Students"<<endl; cout<<"\tA\t"<<markA<<endl; cout<<"\tB\t"<<markB<<endl; cout<<"\tC\t"<<markC<<endl; cout<<"\tD\t"<<markD<<endl; cout<<"\tE\t"<<markE<<endl; /* Tamat Display */ cout<<endl<<"\tThe Highest mark : "<<max<<endl; // display highest mark cout<<"\tThe Lowest mark : "<<min<<endl; //display lowest mark average=sum/30; // kira average markah semua (matematik formula) cout<<"\tThe Average mark : "<<average<<endl; // display average yg telah dikira return 0; }

• calculate average mark using c++
• calculate highest mark c++
• calculate lowest mark c++
• statistic of student mark c++
• statistic of class performance c++
• count how many student have in class C++
• count student mark c++
• count how many student c++

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