Help with trivia program

[ND04]

I am a bit confuse to where the last part of the program that asked me to calculate and display the number of correct and incorrect answers. Please help.

#include <iostream>
#include <ctime>
using namespace std;
int main()
{
//Declare variables
int x,n,y,yourans,choice;
srand(time(0));

//Display menu
cout<<"----------Subjects menu----------\n";
cout<<"\t1. Addition\n";
cout<<"\t2. Substraction\n";
cout<<endl;

//Ask for choice and questions
cout<<"\tEnter your choice: ";cin>>choice;
cout<<"\tEnter the number of questions: ";cin>>n;

//questions
for (int i=1;i<=n;++i)
{
x=rand()%40+1; //random number from 1~39 for x
y=rand()%40+1; //random number from 1~39 for y
switch (choice)
{
case 1:yourans=x+y;
cout<<"\t\t"<<x<<" + "<<y<<" = ";cin>>yourans;
if (x+y==yourans)
{
cout<<"\t\t Correct\n";break;
}
else
{
cout<<"\t\t Wrong\n";break;
}
case 2:yourans=x-y;
cout<<"\t\t"<<x<<" - "<<y<<" = ";cin>>yourans;
if (x-y==yourans)
{
cout<<"\t\t Correct\n";break;
}
else
{
cout<<"\t\t Wrong\n";break;
}
cout<<endl;
}
}
//Count the number of correct & incorrect answers
cout<<"\tNumber of correct answers: "; //<------what must I do to have the program compute and display how many correct answers?
cout<<endl;
cout<<"\tNumber of wrong answer: "; //<------what must I do to have the program compute and display how many wrong answers?
cout<<endl;

//Terminate program
system("pause");
return 0;
}

[ui uiho]

add a two counter variables and do ++counter whenever a problem is right or wrong, then output those variables and your good to go. system("pause");remove that please.

[khal]

ui uiho, I used dev C++ and system("pause"); is actually required or else the command prompt disappear without displaying the result. Just thought I should mention it in case hes also using it

[ui uiho]

that is wrong. read the second post in the beginner forum and that explains it. but system commands are never actually needed and are huge holes in the program.