Assume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. Each child i has a greed factor gi, which is the minimum size of a cookie that the child will be content with; and each cookie j has a size sj. If sj >= gi, we can assign the cookie j to the child i, and the child i will be content. Your goal is to maximize the number of your content children and output the maximum number.
Note:
You may assume the greed factor is always positive. You cannot assign more than one cookie to one child.Example 1:
Input: [1,2,3], [1,1]Output: 1Explanation: You have 3 children and 2 cookies. The greed factors of 3 children are 1, 2, 3. And even though you have 2 cookies, since their size is both 1, you could only make the child whose greed factor is 1 content.You need to output 1.
Example 2:
Input: [1,2], [1,2,3]Output: 2Explanation: You have 2 children and 3 cookies. The greed factors of 2 children are 1, 2. You have 3 cookies and their sizes are big enough to gratify all of the children, You need to output 2.
思路:
先排序,然后为每一个人选择最小的而且满足要求的饼干,记录位置。
int findContentChildren(vector & g, vector & s) { int people = g.size(),cookie = s.size(); sort(g.begin(), g.end()); sort(s.begin(), s.end()); int content = 0; int curindex = 0;//代表饼干的索引 for (int i = 0; i < people;i++) { for (int j = curindex; j < cookie; j++) { if (s[j]>=g[i]) { content++; curindex = j + 1;//j已经被分出去了 得从下一个开始 break; } } } return content; }