C++Server Side ProgrammingProgramming

Suppose we are trying to distribute some cookies to children. But, we should give each child at most one cookie. Now 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. When sj >= gi, we can assign the cookie j to the child i, and the child i will be content. Our goal is to maximize the number of content children and output the maximum number.

So, if the input is like [1,2], [1,2,3], then the output will be 2, there are 2 children and 3 cookies. The greed factors of 2 children are 1, 2. Now we have 3 cookies and their sizes are big enough to gratify all of the children, so the output is 2.

To solve this, we will follow these steps −

• sort the array g

• sort the array s

• i := 0, j = 0

• while (i < size of g and j < size of s), do −

• if g[i] <= s[j], then −

• (increase i by 1)

• (increase j by 1)

• return i

## Example

Let us see the following implementation to get a better understanding −

Live Demo

#include <bits/stdc++.h>
using namespace std;
class Solution {
public:
int findContentChildren(vector<int>& g, vector<int>& s) {
sort(g.begin(), g.end());
sort(s.begin(), s.end());
int i = 0, j = 0;
while (i < g.size() && j < s.size()) {
if (g[i] <= s[j])
i++;
j++;
}
return i;
}
};
main(){
Solution ob;
vector<int> v = {1,2}, v1 = {1,2,3};
cout << (ob.findContentChildren(v, v1));
}

## Input

{1,2}, {1,2,3}

## Output

2