2025-09-12 14:50:25 -03:00

143 lines
2.6 KiB
C++

/* Problem URL: https://codeforces.com/gym/103960/problem/J */
#include <bits/stdc++.h>
using namespace std;
#define V vector
#define rmin(a, b) a = min(a, b)
#define rmax(a, b) a = max(a, b)
#define rep(i, lim) for (int i = 0; i < (lim); i++)
#define nrep(i, s, lim) for (int i = s; i < (lim); i++)
#define repv(i, v) for (auto &i : (v))
#define fillv(v) for (auto &itr_ : (v)) { cin >> itr_; }
#define sortv(v) sort(v.begin(), v.end())
#define all(v) (v).begin(), (v).end()
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using vvvvi = vector<vvvi>;
using ll = long long;
using vl = vector<ll>;
using vvl = vector<vl>;
using vvvl = vector<vvl>;
using vvvvl = vector<vvvl>;
template<class v>
auto operator<<(ostream &os, const vector<v> &vec)->ostream& {
os << vec[0];
for (size_t i = 1; i < vec.size(); i++) {
os << ' ' << vec[i];
}
os << '\n';
return os;
}
template<class v>
auto operator>>(istream &is, vector<v> &vec)->istream& {
for (auto &i : vec) {
is >> i;
}
return is;
}
template<class v>
auto operator<<(ostream &os, const vector<vector<v>> &vec)->ostream& {
for (auto &i : vec) {
os << i[0];
for (size_t j = 1; j < i.size(); j++) {
os << ' ' << i[j];
}
os << '\n';
}
return os;
}
template<class v>
auto operator>>(istream &is, vector<vector<v>> &vec)->istream& {
for (auto &i : vec) {
for (auto &j : i) {
is >> j;
}
}
return is;
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n;
cin >> n;
map<string, int> card;
vi cards(11, 4);
cards[10] = 16;
int john = 0;
int mary = 0;
vi value(14, 0);
nrep(i, 1, 11) {
value[i] = i;
}
value[11] = 10;
value[12] = 10;
value[13] = 10;
int c1, c2;
cin >> c1 >> c2;
cards[value[c1]]--;
cards[value[c2]]--;
john = value[c1] + value[c2];
cin >> c1 >> c2;
cards[value[c1]]--;
cards[value[c2]]--;
mary = value[c1] + value[c2];
while (n--) {
int c;
cin >> c;
cards[value[c]]--;
john += value[c];
mary += value[c];
}
if (mary >= john) {
if (23 - mary > 10 || cards[23 - mary] == 0) {
cout << "-1\n";
return 0;
}
cout << 23 - mary << '\n';
return 0;
}
nrep(i, 1, 11) {
if (mary + i > 23) {
cout << "-1\n";
return 0;
}
if (john + i > 23 && cards[i] > 0) {
cout << i << '\n';
return 0;
}
}
cout << "-1\n";
}