CodingClubIndia/ICPCBallon.cpp at master · subashpaul/CodingClubIndia · GitHub

1 CodingClubIndia/ICPCBallon.cpp at master · subashpaul/CodingClubIndia · GitHub

25 lines (25 loc) · 465 Bytes

#include<bits/stdc++.h>
using namespace std;
    int test;
    cin>>test;
    while(test--)
       int n;
       cin>>n;
        unordered_map<char,int>kp;
        for(int i=0;i<n;i++)
            char k;cin>>k;kp[k]++;
        int result=0;
        for(auto x:kp)
            int k1=(x.second-1);
            int k2=2;
            result+=k1+k2;
        cout<<result<<endl;