Substituted map with unordered_map and reindented

Author: caba5

cpp/0169-majority-element.cpp

@@ -7,10 +7,10 @@ The majority element is the element that appears more than ⌊n / 2⌋ times. Yo
 class Solution {
 public:
     int majorityElement(vector<int>& nums) {
-        map<int,int>mp;
-        int n=nums.size();
-       for(auto &i:nums){
-           if(++mp[i]>n/2)
+        unordered_map<int, int> mp;
+        int n = nums.size();
+        for (int& i : nums){
+           if(++mp[i] > n/2)
                return i;
        }
         return -1;