Code tham khảo

#include<bits/stdc++.h>

using namespace std;

string s;
int n;
vector<string> res1, res2, res3;
void input()
{
    cin >> n >> s;
}

bool check(string S)
{
    if(int(S.size()) == 1) return true;
    if(S[0] == '0') return false;
    return true;
}

void solve()
{
    bool ok1 = false, ok2 = false, ok3 = false;
    string tmp = "";
    for(int i = 0; i <= n; ++i)
    {
        if(i == n || s[i] == ',' || s[i] == ';')
        {
            if(ok1 && !ok2 && !ok3)
            {
                res1.push_back(tmp);
            }
            else if(!ok1 && ok2 && !ok3 && check(tmp))
            {
                res2.push_back(tmp);
            }
            else if(int(tmp.size()) != 0) res3.push_back(tmp);
            tmp = "";
            ok1= false;
            ok2 = false;
            ok3 = false;
        }
        else
        {
            if(s[i] >= 'A' && s[i] <= 'Z') ok1 = true;
            if(s[i] >= '0' && s[i] <= '9') ok2 = true;
            if(s[i] == '.') ok3 = true;
            tmp += s[i];
        }
    }
    if(int(res1.size()))
        for(auto &S : res1) cout << S << ' ';
    else cout << '-';
    cout << '\n';
    if(int(res2.size()))
        for(auto &S : res2) cout << S << ' ';
    else cout << '-';
    cout << '\n';
    if(int(res3.size()))
        for(auto &S : res3) cout << S << ' ';
    else cout << '-';
}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    input();
    solve();
    return 0;
}