Submission #646733

#	Time	Username	Problem	Language	Result	Execution time	Memory
646733		Alenygam	Election (BOI18_election)	C++14	28 / 100	3089 ms	632 KiB

election

#include <bits/stdc++.h>

using namespace std;

int main() {
	ios_base::sync_with_stdio(false);
	// cin.tie(0); cout.tie(0);

	int N; cin >> N;
	string s; cin >> s;
	int Q; cin >> Q;

	vector<bool> removed(N, 0);

	while (Q--) {
		int l, r;
		cin >> l >> r;
		l--;

		int c = 0;
		int t = 0;
		int rem = 0;
		for (int i = l; i < r; i++) {
			if (s[i] == 'C') c++;
			else t++;

			if (c - t < 0) {
				rem += abs(c - t);
				t = c;
				removed[i] = true;
			}
		}
		c = 0; t = 0;
		for (int i = r - 1; i >= l; i--) {
			if (removed[i]) continue;

			if (s[i] == 'C') c++;
			else t++;

			if (c - t < 0) {
				rem += abs(c - t);
				t = c;
			}
		}

		for (int i = 0; i < N; i++) removed[i] = false;

		cout << rem << '\n';
	}
}

• Subtask 1: 28 / 28
• Subtask 2: 0 / 54
• Subtask 3: 0 / 18