有1分,2分,5分,10分四种硬币,每种硬币数量无限,给定target分钱,求有多少种组合可以组合成target分钱?(2012创新工场) 解答:(基于深度优先的递归) #include <iostream>#include<vector>usingnamespacestd;voiddfs(intindex,inttotal,inttarget,int&count, vector<int> res, vector<vector<int>> &ans,intA[],int...