oj.uz

답안 #854012

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
854012 2023-09-25T19:45:15 Z serifefedartar Examination (JOI19_examination) C++17
2 / 100
 3000 ms 10528 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define fast ios::sync_with_stdio(0);cin.tie(0);
#define s second
#define f first
typedef long long ll;
const ll MOD = 998244353;
const ll LOGN = 20;
const ll MAXN = 1e5 + 5;

const int BLOCK = 500;
struct Query {
	int A, B, C, idx;
	bool operator< (Query y) {	
		return make_pair(A / BLOCK, B) < make_pair(y.A / BLOCK, y.B);
	}
};

vector<Query> Q;
int fen[MAXN], ans[MAXN], sumCoor[MAXN];
vector<int> S, T, cc;
vector<pair<int,int>> tt, ss;
map<int,int> cnt;

void update(int k, int val) {
	k++;
	while (k < MAXN) {
		fen[k] += val;
		k += k & -k;
	}
}

int get(int k) {
	k++;
	int res = 0;
	while (k >= 1) {
		res += fen[k];
		k -= k & -k;
	}
	return res;
}

int main() {
	fast
	int N, Qs;
	cin >> N >> Qs;

	S = vector<int>(N);
	T = vector<int>(N);
	for (int i = 0; i < N; i++) {
		cin >> S[i] >> T[i];
		ss.push_back({S[i], i});
		tt.push_back({T[i], i});
		cc.push_back(S[i] + T[i]);
	}

	sort(cc.begin(), cc.end());
	sort(ss.begin(), ss.end());
	sort(tt.begin(), tt.end());

	for (int i = 0; i < N; i++)
		sumCoor[i] = lower_bound(cc.begin(), cc.end(), S[i] + T[i]) - cc.begin();

	for (int i = 0; i < Qs; i++) {
		Query q;
		cin >> q.A >> q.B >> q.C;
		q.A = lower_bound(ss.begin(), ss.end(), make_pair(q.A, 0)) - ss.begin();
		q.B = lower_bound(tt.begin(), tt.end(), make_pair(q.B, 0)) - tt.begin();
		q.C = lower_bound(cc.begin(), cc.end(), q.C) - cc.begin();
		q.idx = i;
		Q.push_back(q);
	}
	sort(Q.begin(), Q.end());

	int s = N; // tamamen sağda
	int t = N;
	for (auto u : Q) {
		int new_s = u.A;
		int new_t = u.B;
		while (new_s < s) {
			cnt[ss[s-1].s]++;
			if (cnt[ss[s-1].s] == 2)
				update(sumCoor[ss[s-1].s], 1);				
			s--;
		}
		while (new_t < t) {
			cnt[tt[t-1].s]++;
			if (cnt[tt[t-1].s] == 2)
				update(sumCoor[tt[t-1].s], 1);
			t--;
		}
		while (new_s > s) {
			cnt[ss[s].s]--;
			if (cnt[ss[s].s] == 1)
				update(sumCoor[ss[s].s], -1);
			s++;
		}
		while (new_t > t) {
			cnt[tt[t].s]--;
			if (cnt[tt[t].s] == 1)
				update(sumCoor[tt[t].s], -1);
			t++;
		}

		ans[u.idx] = get(MAXN - 2) - get(u.C - 1);
	}

	for (int i = 0; i < Qs; i++)
		cout << ans[i] << "\n";
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 57 ms 600 KB Output is correct
8 Correct 58 ms 604 KB Output is correct
9 Correct 57 ms 600 KB Output is correct
10 Correct 56 ms 604 KB Output is correct
11 Correct 39 ms 812 KB Output is correct
12 Correct 37 ms 604 KB Output is correct
13 Correct 57 ms 600 KB Output is correct
14 Correct 62 ms 792 KB Output is correct
15 Correct 57 ms 604 KB Output is correct
16 Correct 5 ms 604 KB Output is correct
17 Correct 53 ms 600 KB Output is correct
18 Correct 3 ms 604 KB Output is correct

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3043 ms 10528 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3043 ms 10528 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 57 ms 600 KB Output is correct
8 Correct 58 ms 604 KB Output is correct
9 Correct 57 ms 600 KB Output is correct
10 Correct 56 ms 604 KB Output is correct
11 Correct 39 ms 812 KB Output is correct
12 Correct 37 ms 604 KB Output is correct
13 Correct 57 ms 600 KB Output is correct
14 Correct 62 ms 792 KB Output is correct
15 Correct 57 ms 604 KB Output is correct
16 Correct 5 ms 604 KB Output is correct
17 Correct 53 ms 600 KB Output is correct
18 Correct 3 ms 604 KB Output is correct
19 Execution timed out 3043 ms 10528 KB Time limit exceeded
20 Halted 0 ms 0 KB -