/C++/Nearly similar rectangles hackerrank solution

Nearly similar rectangles hackerrank solution

#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll combinations(ll n)
{
	ll count=1;
	if(n<2)
	return 0;	
	else
	{
	   for(ll i=1;i<=2;i++)
		{
			count=count*n--;
			count=count/i;
		}
	}
	return count;
}

Similar codes

1 vote211 views1 answer
Avrational compare
C++
2 votes177 views1 answer
Cannot find -lsqlite3 C++ compiler error
C++
2 votes179 views1 answer
Replace a char in string c++ at a specific index
C++
1 vote178 views1 answer
C++ ::
C++
3 votes190 views2 answers
Cpp lambda function
C++
11 votes186 views3 answers
Get ascii value of string in C++
C++
0 vote174 views1 answer
C++ program to print natural numbers from 1 to 10 in reverse order using while loop
C++
0 vote189 views3 answers
Dynamic memory c++
C++
0 vote201 views1 answer
Bash find into array
C++
1 vote196 views1 answer
C++ functions inside functions
C++