PROBLEM LINK:
Practice
Contest: Division 1
Contest: Division 2
Contest: Division 3
Contest: Division 4
Tester: yash_daga
Editorialist: iceknight1093
DIFFICULTY:
287
PREREQUISITES:
None
PROBLEM:
The new CodeChef Learn module has two courses for each language.
If there are courses for N languages, how many courses are present in total?
EXPLANATION:
With two courses for each language, if there are N languages there will be 2\times N courses.
So, the solution is to read in N and print 2\times N.
TIME COMPLEXITY
\mathcal{O}(1) per test case.
CODE:
Code (C++)
#include <iostream>
using namespace std;
int main() {
int n;
cin >> n;
cout << 2*n << '\n';
return 0;
}
Code (Python)
a = int(input())
print(2 * a)