Submission #544840

#	Time	Username	Problem	Language	Result	Execution time	Memory
544840		skittles1412	Olympiads (BOI19_olympiads)	C++17	0 / 100	2 ms	596 KiB

olympiads

#include "bits/extc++.h"

using namespace std;

template <typename T>
void dbgh(const T& t) {
	cerr << t << endl;
}

template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
	cerr << t << " | ";
	dbgh(u...);
}

#ifdef DEBUG
#define dbg(...)                                           \
	cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
		 << ": ";                                          \
	dbgh(__VA_ARGS__)
#else
#define cerr   \
	if (false) \
	cerr
#define dbg(...)
#endif

#define endl "\n"
#define long int64_t
#define sz(x) int((x).size())

const int maxn = 10;

vector<int> ans;
int n, m, arr[maxn][6];

void dfs(int ind, int cur, array<int, 6> copt) {
	if (ind == m) {
		ans.push_back(accumulate(copt.begin(), copt.begin() + m, 0));
		return;
	}
	for (int i = cur; i < n; i++) {
		auto tmp = copt;
		for (int j = 0; j < m; j++) {
			tmp[j] = max(tmp[j], arr[i][j]);
		}
		dfs(ind + 1, i + 1, tmp);
	}
}

void solve() {
	int k;
	cin >> n >> m >> k;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			cin >> arr[i][j];
		}
	}
	dfs(0, 0, {});
	k--;
	nth_element(begin(ans), ans.begin() + k, end(ans), greater<>());
	cout << ans[k] << endl;
}

int main() {
	cin.tie(nullptr);
	ios_base::sync_with_stdio(false);
	cin.exceptions(ios::failbit);
	solve();
}

• Subtask 1: 0 / 13
• Subtask 2: 0 / 31
• Subtask 3: 0 / 24
• Subtask 4: 0 / 32