class Solution {
public:
    long long waysToBuyPensPencils(int total, int cost1, int cost2) {
        int& c1 = cost1 > cost2 ? cost1 : cost2;
        int& c2 = cost1 > cost2 ? cost2 : cost1;
        int temp = total / c1;
        long long ret = 0;
        for ( ; temp >= 0; temp--) {
            ret += ((total - temp * c1) / c2 + 1);
        }
        return ret;
    }
};