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답안 #145857

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
145857 2019-08-21T07:20:26 Z maruii 역사적 조사 (JOI14_historical) C++14
100 / 100
 2187 ms 5980 KB 
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;
#define ff first
#define ss second
#define eack emplace_back
#define all(x) (x).begin(), (x).end()

int X[100005], in[100005][2];
vector<int> xx;

const int SIZE = 1 << 17;
struct ST {
	long long A[2 * SIZE];
	int sz;
	void update(int x, long long v) {
		x += SIZE; A[x] += v;
		for (x >>= 1; x; x >>= 1) A[x] = max(A[x << 1], A[x << 1 | 1]);
	}
	long long query() { return A[1]; }
} seg;
		
int main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	int N, Q; cin >> N >> Q;
	for (int i = 1; i <= N; ++i) cin >> X[i], xx.eack(X[i]);
	sort(all(xx));
	xx.erase(unique(all(xx)), xx.end());
	for (int i = 1; i <= N; ++i) {
		X[i] = lower_bound(all(xx), X[i]) - xx.begin();
	}
	seg.sz = xx.size() - 1;
	
	vector<pii> qry[320];
	vector<long long> ans(Q);

	for (int i = 0; i < Q; ++i) {
		cin >> in[i][0] >> in[i][1];
		qry[in[i][0] / 400].eack(in[i][1], i);
	}

	int s = 1, e = 0;
	for (int ii = 0; ii <= N / 400; ++ii) {
		sort(all(qry[ii]));
		for (auto i : qry[ii]) {
			int ns = in[i.ss][0], ne = in[i.ss][1];	
			for (; s < ns; ++s) seg.update(X[s], -xx[X[s]]);
			for (; s > ns; --s) seg.update(X[s - 1], xx[X[s - 1]]);
			for (; e < ne; ++e) seg.update(X[e + 1], xx[X[e + 1]]);
			for (; e > ne; --e) seg.update(X[e], -xx[X[e]]);
			ans[i.ss] = seg.query();
		}
	}
	
	for (auto i : ans) cout << i << '\n';
	return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 6 ms 376 KB Output is correct
4 Correct 12 ms 504 KB Output is correct
5 Correct 20 ms 504 KB Output is correct
6 Correct 36 ms 632 KB Output is correct
7 Correct 34 ms 632 KB Output is correct
8 Correct 36 ms 632 KB Output is correct
9 Correct 38 ms 632 KB Output is correct
10 Correct 35 ms 632 KB Output is correct
11 Correct 36 ms 632 KB Output is correct
12 Correct 35 ms 632 KB Output is correct
13 Correct 35 ms 632 KB Output is correct
14 Correct 35 ms 632 KB Output is correct
15 Correct 35 ms 632 KB Output is correct
16 Correct 38 ms 640 KB Output is correct
17 Correct 44 ms 632 KB Output is correct
18 Correct 35 ms 632 KB Output is correct
19 Correct 35 ms 760 KB Output is correct
20 Correct 35 ms 772 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 3 ms 504 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 4 ms 504 KB Output is correct
8 Correct 7 ms 632 KB Output is correct
9 Correct 13 ms 888 KB Output is correct
10 Correct 15 ms 1016 KB Output is correct
11 Correct 64 ms 4208 KB Output is correct
12 Correct 35 ms 1276 KB Output is correct
13 Correct 50 ms 2176 KB Output is correct
14 Correct 69 ms 3572 KB Output is correct
15 Correct 90 ms 5748 KB Output is correct
16 Correct 69 ms 4588 KB Output is correct
17 Correct 35 ms 2136 KB Output is correct
18 Correct 58 ms 3828 KB Output is correct
19 Correct 62 ms 5596 KB Output is correct
20 Correct 37 ms 3472 KB Output is correct

Subtask #4
60.0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 76 ms 816 KB Output is correct
2 Correct 167 ms 1372 KB Output is correct
3 Correct 285 ms 1912 KB Output is correct
4 Correct 494 ms 2400 KB Output is correct
5 Correct 638 ms 2936 KB Output is correct
6 Correct 758 ms 3320 KB Output is correct
7 Correct 941 ms 3824 KB Output is correct
8 Correct 1259 ms 4340 KB Output is correct
9 Correct 1703 ms 4872 KB Output is correct
10 Correct 2128 ms 5148 KB Output is correct
11 Correct 1789 ms 5144 KB Output is correct
12 Correct 1651 ms 5112 KB Output is correct
13 Correct 1697 ms 5204 KB Output is correct
14 Correct 2100 ms 5588 KB Output is correct
15 Correct 2187 ms 5980 KB Output is correct
16 Correct 2183 ms 5880 KB Output is correct
17 Correct 2176 ms 5736 KB Output is correct
18 Correct 2143 ms 5604 KB Output is correct
19 Correct 2114 ms 5620 KB Output is correct
20 Correct 2091 ms 5572 KB Output is correct
21 Correct 2077 ms 5500 KB Output is correct
22 Correct 2074 ms 5620 KB Output is correct
23 Correct 2089 ms 5540 KB Output is correct
24 Correct 2047 ms 5472 KB Output is correct
25 Correct 2128 ms 5476 KB Output is correct