TCHS SRM 50 250 pt - Level one - Funny Birds solution

TCHS SRM 50 250 pt - Level one - Funny Birds: http://community.topcoder.com/stat?c=problem_statement&pm=9769&rd=13483

TCHS SRM 50 250 pt - Level one - Funny Birds editorial: http://community.topcoder.com/tc?module=Static&d1=hs&d2=match_editorials&d3=hs_srm50

TCHS SRM 50 250 pt - Level one - Funny Birds solution: 

#include <iostream>

class FunnyBirds{
    public: int gameTime(int n) {
        int a=1, cnt=0;
        while(n) {
            while((a*(a+1)/2)<=n) a++;
            a--, n-=a*(a+1)/2, cnt+=a, a=1;
        }
        return cnt;
    }
};