Added 1551B1 - Wonderful Coloring - 1.cpp

Author: vikashpatel24

1551B1 - Wonderful Coloring - 1.cpp

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+//                                 ॐ नमः शिवाय
+#include<bits/stdc++.h>
+using namespace std;
+
+#define ll long long
+#define pb push_back
+#define ff first
+#define ss second
+#define mp make_pair
+ 
+// Code Written By: Vikash Patel
+// Codeforces Profile: https://codeforces.com/profile/vikashpatel
+
+int main()
+{
+    ios_base::sync_with_stdio(0);
+    cin.tie(0);
+    cout.tie(0);
+    
+    // #ifndef ONLINE_JUDGE
+    // freopen("input.txt", "r", stdin);
+    // freopen("/Users/vikash/Desktop/output.txt", "w", stdout);
+    // #endif
+    
+    int t;
+    cin>>t;
+    while(t--)
+    {
+        string s;
+        cin>>s;
+        unordered_map<char, int> mp;
+        for(auto i : s)
+        {
+            mp[i]++;
+        }
+        int unique = 0;
+        int c = 0;
+        for(auto i : mp)
+        {
+            if(i.ss == 1)
+            unique++;
+            else
+            c++;
+        }
+        cout<<c+(unique/2)<<endl;
+    }
+    return 0;
+}