Submission #952966

#	Time	Username	Problem	Language	Result	Execution time	Memory
952966		Sacharlemagne	Diversity (CEOI21_diversity)	C++17	0 / 100	7044 ms	412 KiB

diversity

#include <bits/stdc++.h>

using namespace std;

int main() {
	//ios_base::sync_with_stdio(false); cin.tie(nullptr);
	int n,q; cin >> n >> q;
	vector<int> vv(n); for (int i = 0; i<n; ++i) cin >> vv[i];
	while (q--) {
		long long fin = 4e18;
		int L, R;
		cin >> L >> R;
		--L; --R;
		vector<int> v(R-L+1); for (int i = 0; i<R-L+1; ++i) v[i] = vv[i+L];
		do {

			//int l,r; cin >> l >> r; --l;
			long long ans = 0;
			for (int i = 0; i < n; ++i) {
				set<int> s;
				for (int j = i; j < n; ++j) {
					s.insert(v[j]);
					ans += s.size();
				}
			}
			fin = min(fin, ans);

		} while (std::next_permutation(v.begin(), v.end()));
		cout << fin;
	}
	return 0;
}
/*
 *
 */

• Subtask 1: 0 / 4
• Subtask 2: 0 / 10
• Subtask 3: 0 / 8
• Subtask 4: 0 / 16
• Subtask 5: 0 / 26
• Subtask 6: 0 / 36