0075.cpp (276B)
1 class Solution { 2 public: 3 void sortColors(vector<int> &nums) { 4 array<int, 3> arr; 5 for (int n : nums) 6 arr[n]++; 7 int count = 0; 8 for (int i = 0; i < 3; i++) 9 while (arr[i]--) 10 nums[count++] = i; 11 } 12 };