Submission #964836

#	Time	Username	Problem	Language	Result	Execution time	Memory
964836		MinaRagy06	Diversity (CEOI21_diversity)	C++17	0 / 100	1 ms	348 KiB

diversity

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

int main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	int n, q;
	cin >> n >> q;
	int a[n];
	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}
	while (q--) {
		int l, r;
		cin >> l >> r;
		l--, r--;
		vector<int> v;
		for (int i = l; i <= r; i++) {
			v.push_back(a[i]);
		}
		sort(v.begin(), v.end());
		int ans = 0;
		for (int i = 0; i < v.size(); i++) {
			set<int> s;
			for (int j = i; j < v.size(); j++) {
				s.insert(v[j]);
				ans += s.size();
			}
		}
		cout << ans << '\n';
	}
	return 0;
}

Compilation message (stderr)

diversity.cpp: In function 'int main()':
diversity.cpp:23:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |   for (int i = 0; i < v.size(); i++) {
      |                   ~~^~~~~~~~~~
diversity.cpp:25:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |    for (int j = i; j < v.size(); j++) {
      |                    ~~^~~~~~~~~~

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