Find Target Indices After Sorting Array

leetcode-2089.cpp

class Solution {
public:
    vector<int> targetIndices(vector<int>& nums, int target) {
        sort(nums.begin(), nums.end());

        int n = nums.size();
        vector<int> res;

        for (int i = 0; i < n; i++) {
            if (nums[i] == target)
                res.push_back(i);
        }

        return res;
    }
};