DSA02022 - NGÀY ĐẶC BIỆT

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define faster() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define vt vector <int>
#define vtl vector <ll>
#define vts vector <string>
const int MOD = 1e9 + 7;

vts D = { "02", "20", "22" };
vts Y = { "000", "002", "020", "200", "022", "202", "220", "222" };
vts ans;

void solution() {
    for (auto i : D) {
        for (auto j : Y) {
            string tmp = i + "/02/2" + j;
            ans.push_back(tmp);
        }
    }
    sort(ans.begin(), ans.end());
    for (auto i : ans) cout << i << endl;
}

int main() {
    faster();
    solution();
    return 0;
}