For Loop in C++

For Loop in C++

For loop have three parts;

for (i= 1; i <= n; ++i)

loop initialization: e.g i=1;

loop condition: e.g i<=n;

loop increment/decrement: e.g i++;

Example of For loop

#include <iostream>
using namespace std;
int main()
{
int i, n;
int factorial= 1;
cout << "Enter a number: ";
cin >> n;
for (i= 1; i <= n; ++i) {
factorial*= i;
}
cout<< "Factorial of "<<n<<" = "<<factorial;
return 0;
}