Why doesn't it stop after printing it 20 times ?

Question

#include <iostream>
using namespace std;

int main ()

int a;
int c = 1;
cout << "Please Enter A Number \n";
cin >> a; cout << "Thank you \n";

for (c < 20; c++;) {
cout << a * c << endl;
}

Answer 1

write loop like that
for(;c<20;c++) and put a } to terminate the loop

Answer 2

i think mistake is in for loop
for (;c <20;c++)

for (initialization; expression; increment/decrement )

Answer 3

Thank you both !

Answer 4

Please have a look at for syntax, (initialize; condition; operation)

Answer 5

@Balaji
I am aware of how for syntax works, but didn't know that if I declared variable earlier, I needed to put a semicolon as the 'init' and thus, left it blank.