https://www.hackerrank.com/challenges/angry-children
// Complete the maxMin function below.
int maxMin(int k, vector<int> arr) {
int min = INT_MAX;
sort(arr.begin(), arr.end());
cout << k << endl;
for (int i = k - 1; i < arr.size(); ++i) {
int temp = arr[i] - arr[i - k + 1];
if (temp < min) {
min = temp;
}
}
return min;
}