Description

Submission

class Solution {
public:
    string strWithout3a3b(int a, int b) {
        string ret;
        char ca = 'a', cb = 'b';

        if(b > a) {
            swap(ca, cb);
            swap(a, b);
        }

        while(a || b) {
            if(b == 0) {
                while(a--) {
                    ret.push_back(ca);
                }
                break;
            }
            if(a == 0) {
                while(b--) {
                    ret.push_back(cb);
                }
                break;
            }
            if(a > b) {
                a -= 2;
                ret.push_back(ca);
                ret.push_back(ca);
                b -= 1;
                ret.push_back(cb);
            } else {
                ret.push_back(ca);
                ret.push_back(cb);
                --a;
                --b;
            }
        }

        return ret;
    }
};