https://www.pbinfo.ro/probleme/3667/cifmaximp

#include <iostream>
using namespace std;
int n, i, x, maxim, sol;
int main () {
    cin>>n;
    for (i=1;i<=n;i++) {
        cin>>x;
        maxim = 0;
        while (x!=0) {
            if (x%10 > maxim)
                maxim = x%10;
            x /= 10;
        }
        if (maxim%2 == 1)
            sol++;
    }
    cout<<sol;
    return 0;
}