69EEmB - Online C++ Compiler & Debugging Tool

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

typedef long long ll;
void chuanHoa(string &a) {
    a[0] = toupper(a[0]);
    for (int i = 1; i < a.size(); i++) {
        a[i] = tolower(a[i]);
    }
}
void fullName(string &a) {
    stringstream ss(a);
    string res;
    string tmp;
    while (ss >> tmp) {
        chuanHoa(tmp);
        res += tmp + ' ';
    }
    a = res;
}

typedef struct {
    string name;
    string d, m, y;
    int stt;
} sv;

int main() {
    vector<sv> vt;
    int t;
    cin >> t;
    cin.ignore();

    for (int i = 0; i < t; i++) {
        sv x;
        string name;
        string birth;
        getline(cin, name);
        fullName(name);
        x.name = name;

        cin >> birth;
        cin.ignore();
        x.stt = i + 1;
        stringstream ss(birth);
        getline(ss, x.d, '/');
        getline(ss, x.m, '/');
        getline(ss, x.y, '/');

        vt.emplace_back(x);
    }
    for (auto &x : vt) {
        cout << "B24DCCN" << setw(3) << setfill('0') << x.stt << " ";
        cout << x.name ;
        cout << setw(2) << setfill('0') << x.d << "/"
             << setw(2) << setfill('0') << x.m << "/"
             << setw(4) << setfill('0') << x.y << "\n";
    }

}