leetcode 455. Assign Cookies
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: 1 Explanation: 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: 2 Explanation: 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.AC:
int compare(const void *a,const void *b) { return *(int *)a-*(int *)b; } int findContentChildren(int* g, int gSize, int* s, int sSize) { qsort(g,gSize,sizeof(g[0]),compare); qsort(s,sSize,sizeof(s[0]),compare); int i,j; for(i=0,j=0;i<sSize&&j<gSize;i++) { if(s[i]>=g[j]) { j++; } } return j; }
tips: qsort经常会用到，所以要牢记怎么写！
