Submission #74095953

Source Code Expand

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

int main() {
	int N, L, R;
	string S;
	cin >> N >> L >> R >> S;
	vector<vector<int>> pos(26);
	for (int i = 0; i < N; i++) {
		pos[S[i] - 'a'].push_back(i);
	}
	long long ans = 0;
	for (int c = 0; c < 26; c++) {
		const vector<int> &p = pos[c];
		int m = p.size();
		if (m < 2)
			continue;
		for (int x = 0; x < m; x++) {
			int low = p[x] + L;
			int high = p[x] + R;
			auto it1 = lower_bound(p.begin() + x + 1, p.end(), low);
			auto it2 = upper_bound(p.begin() + x + 1, p.end(), high);
			ans += (it2 - it1);
		}
	}
	cout << ans << endl;
	return 0;
}

Submission Info

Submission Time
Task C - Comfortable Distance
User Eason0709
Language C++23 (GCC 15.2.0)
Score 300
Code Size 629 Byte
Status AC
Exec Time 40 ms
Memory 6920 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 23
Set Name Test Cases
Sample sample00.txt, sample01.txt, sample02.txt
All sample00.txt, sample01.txt, sample02.txt, testcase00.txt, testcase01.txt, testcase02.txt, testcase03.txt, testcase04.txt, testcase05.txt, testcase06.txt, testcase07.txt, testcase08.txt, testcase09.txt, testcase10.txt, testcase11.txt, testcase12.txt, testcase13.txt, testcase14.txt, testcase15.txt, testcase16.txt, testcase17.txt, testcase18.txt, testcase19.txt
Case Name Status Exec Time Memory
sample00.txt AC 1 ms 3624 KiB
sample01.txt AC 1 ms 3596 KiB
sample02.txt AC 1 ms 3624 KiB
testcase00.txt AC 1 ms 3408 KiB
testcase01.txt AC 1 ms 3532 KiB
testcase02.txt AC 4 ms 3896 KiB
testcase03.txt AC 20 ms 6792 KiB
testcase04.txt AC 10 ms 4416 KiB
testcase05.txt AC 15 ms 5260 KiB
testcase06.txt AC 10 ms 4288 KiB
testcase07.txt AC 17 ms 6920 KiB
testcase08.txt AC 33 ms 6764 KiB
testcase09.txt AC 29 ms 6772 KiB
testcase10.txt AC 35 ms 6908 KiB
testcase11.txt AC 30 ms 6780 KiB
testcase12.txt AC 21 ms 6320 KiB
testcase13.txt AC 20 ms 6408 KiB
testcase14.txt AC 22 ms 6400 KiB
testcase15.txt AC 24 ms 6348 KiB
testcase16.txt AC 22 ms 6456 KiB
testcase17.txt AC 21 ms 6576 KiB
testcase18.txt AC 23 ms 6404 KiB
testcase19.txt AC 40 ms 6396 KiB