C++ loop

Does anone know how to loop this ,I made the code myself but have no idea with looping.it has to repeat the line Enter your test score: ,

Code:

#include <iostream>
using namespace std;
int main(void)
{
   int testScore;
   cout << "Enter your test score: ";
   cin >> testScore;
   if (testScore >= 101 )
   cout << "Lol Impossible" << endl;
   else if (testScore >= 90 )
   cout << "Your grade is an A1" << endl;
   else if (testScore >= 85 )
   cout << "Your grade is an A2" << endl;
   else if (testScore >= 80 )
   cout << "Your grade is a B1" << endl;
   else if (testScore >= 75 )
   cout << "Your grade is a B2" << endl;
   else if (testScore >= 70 )
   cout << "Your grade is a B3" << endl;
   else if (testScore >= 65 )
   cout << "Your grade is a C1" << endl;
   else if (testScore >= 60 )
   cout << "Your grade is a C2" << endl;
   else if (testScore >= 55 )
   cout << "Your grade is a C3" << endl;
   else if (testScore >= 50 )
   cout << "Your grade is a D1" << endl;
   else if (testScore >= 45 )
   cout << "Your grade is a D2" << endl;
   else if (testScore >= 40)
   cout << "Your grade is a D3" << endl;
   else if (testScore >= 25 )
   cout << "Your grade is an E" << endl;
   else if (testScore >= 10 )
   cout << "Your grade is an F" << endl;
   else  
   cout << "No Grade ,well done ^-^ " << endl;
   system("pause");
   return 0;
}

Its a basic code cause I have only started learning c++

 

You probably want to look at a while loop.

Code:

cin>>;
While (the input is valid)
{
    // Print out the score
    cin>>;
}

 

I can't help but think that a dictionary object and looking up the values in the dictionary based on what the entered value was i.e. find Key Value Pair in Dictionary where VALUE == KEY, would be more efficient and easier to read.

Would require a dictionary containing 0-100 and each grade associated, but would eliminate that mega if/then/else conditional logic.

 

Declare a string variable, then put your statements all inside a while loop, and ask the user if they would like to run it again right before the end of the loop. String variable will be equal to "y".

 

hello guys.....
If you want to make something to loop forever use

either

1
2
3


for(;{
//put the code you want to loop forever here.
}