Sanalista

#include<bits/stdc++.h>
using namespace std;

int main(){
    int n;
    cin >> n;
    int co = 0;
    for(int i = 0; i < n; i++){
        map<char,int> ma = {};
        string s;
        cin >> s;
        for(auto u : s){
            ma[u]++;
        }
        bool bo = false;
        for(auto u : ma){
            if(u.second % 2 == 1) bo = true;
        }
        
        if(!bo) co++;
    }
    cout << co << "\n";
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED