oj.uz

답안 #145786

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
145786 2019-08-21T06:53:15 Z maruii 역사적 조사 (JOI14_historical) C++14
40 / 100
 4000 ms 9340 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 nn, int ns, int ne, int x, int v) {
		if (ns > x || ne < x) return;
		if (x <= ns && ne <= x) {
			A[nn] += v;
			return;
		}
		int m = ns + ne >> 1;
		update(nn << 1, ns, m, x, v);
		update(nn << 1 | 1, m + 1, ne, x, v);
		A[nn] = max(A[nn << 1], A[nn << 1 | 1]);
	}
	void update(int x, int v) { update(1, 0, sz, x, v); }
	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<pair<pii, int> > qry(Q);
	vector<long long> ans(Q);

	for (int i = 0; i < Q; ++i) {
		cin >> in[i][0] >> in[i][1];
		qry.eack(pii(in[i][0] / 320, in[i][1]), i);
	}
	sort(all(qry));

	int s = 1, e = 0;
	for (auto i : qry) {
		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;
}

Compilation message

historic.cpp: In member function 'void ST::update(int, int, int, int, int)':
historic.cpp:22:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = ns + ne >> 1;
           ~~~^~~~

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 3 ms 504 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 3 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 504 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 3 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 7 ms 476 KB Output is correct
4 Correct 13 ms 508 KB Output is correct
5 Correct 27 ms 760 KB Output is correct
6 Correct 40 ms 760 KB Output is correct
7 Correct 48 ms 760 KB Output is correct
8 Correct 26 ms 764 KB Output is correct
9 Correct 28 ms 760 KB Output is correct
10 Correct 75 ms 892 KB Output is correct
11 Correct 76 ms 888 KB Output is correct
12 Correct 75 ms 888 KB Output is correct
13 Correct 73 ms 896 KB Output is correct
14 Correct 67 ms 832 KB Output is correct
15 Correct 72 ms 888 KB Output is correct
16 Correct 31 ms 888 KB Output is correct
17 Correct 12 ms 888 KB Output is correct
18 Correct 70 ms 888 KB Output is correct
19 Correct 79 ms 888 KB Output is correct
20 Correct 79 ms 888 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 3 ms 380 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 8 ms 504 KB Output is correct
8 Correct 13 ms 760 KB Output is correct
9 Correct 31 ms 1144 KB Output is correct
10 Correct 12 ms 1144 KB Output is correct
11 Correct 75 ms 6728 KB Output is correct
12 Correct 77 ms 2040 KB Output is correct
13 Correct 132 ms 3700 KB Output is correct
14 Correct 158 ms 6412 KB Output is correct
15 Correct 182 ms 9340 KB Output is correct
16 Correct 101 ms 7464 KB Output is correct
17 Correct 42 ms 3092 KB Output is correct
18 Correct 69 ms 6504 KB Output is correct
19 Correct 90 ms 9160 KB Output is correct
20 Correct 53 ms 5488 KB Output is correct

Subtask #4
0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 80 ms 1268 KB Output is correct
2 Correct 362 ms 2064 KB Output is correct
3 Correct 908 ms 2964 KB Output is correct
4 Correct 1616 ms 3744 KB Output is correct
5 Correct 2285 ms 4524 KB Output is correct
6 Correct 2689 ms 5432 KB Output is correct
7 Correct 2369 ms 6160 KB Output is correct
8 Correct 1558 ms 7020 KB Output is correct
9 Correct 819 ms 7944 KB Output is correct
10 Correct 314 ms 8032 KB Output is correct
11 Correct 1261 ms 8160 KB Output is correct
12 Correct 3870 ms 8180 KB Output is correct
13 Execution timed out 4022 ms 7264 KB Time limit exceeded
14 Halted 0 ms 0 KB -