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Submission #118834

# Submission time Handle Problem Language Result Execution time Memory
118834 2019-06-19T23:10:40 Z tmwilliamlin168 Two Antennas (JOI19_antennas) C++14
100 / 100
 892 ms 56244 KB 
#include <bits/stdc++.h>
using namespace std;

const int mxN=2e5, oo=1<<30;
int n, q, h[mxN], a[mxN], b[mxN], ans[mxN], ql[mxN], qr[mxN], lz[1<<19];
vector<int> ta[mxN], tu1[2*mxN], tu2[2*mxN];
array<int, 2> st[1<<19];

void app(int i, int x) {
	st[i][1]=max(st[i][0]+x, st[i][1]);
	lz[i]=max(x, lz[i]);
}

void psh(int i) {
	app(2*i, lz[i]);
	app(2*i+1, lz[i]);
	lz[i]=-oo;
}

void upd1(int l1, int x, int i=1, int l2=0, int r2=n-1) {
	if(l2==r2) {
		st[i][0]=x;
		return;
	}
	psh(i);
	int m2=(l2+r2)/2;
	if(l1<=m2)
		upd1(l1, x, 2*i, l2, m2);
	else
		upd1(l1, x, 2*i+1, m2+1, r2);
	st[i][0]=max(st[2*i][0], st[2*i+1][0]);
	st[i][1]=max(st[2*i][1], st[2*i+1][1]);
}

void upd2(int l1, int r1, int x, int i=1, int l2=0, int r2=n-1) {
	if(l1<=l2&&r2<=r1) {
		app(i, x);
		return;
	}
	int m2=(l2+r2)/2;
	psh(i);
	if(l1<=m2)
		upd2(l1, r1, x, 2*i, l2, m2);
	if(m2<r1)
		upd2(l1, r1, x, 2*i+1, m2+1, r2);
	st[i][0]=max(st[2*i][0], st[2*i+1][0]);
	st[i][1]=max(st[2*i][1], st[2*i+1][1]);
}

int qry(int l1, int i=1, int l2=0, int r2=n-1) {
	if(l1<=l2)
		return st[i][1];
	int m2=(l2+r2)/2;
	psh(i);
	return max(l1<=m2?qry(l1, 2*i, l2, m2):-oo, qry(l1, 2*i+1, m2+1, r2));
}

void solve() {
	memset(st, 0xc0, sizeof(st));
	memset(lz, 0xc0, sizeof(lz));
	for(int i=0; i<n; ++i) {
		for(int j : tu1[i])
			upd1(j, -h[j]);
		if(i-a[i]>=0)
			upd2(max(i-b[i], 0), i-a[i], h[i]);
		for(int j : ta[i])
			ans[j]=max(qry(ql[j]), ans[j]);
		for(int j : tu2[i])
			upd1(j, -oo);
	}
}

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);

	cin >> n;
	for(int i=0; i<n; ++i) {
		cin >> h[i] >> a[i] >> b[i];
		tu1[i+a[i]].push_back(i);
		tu2[i+b[i]].push_back(i);
	}
	cin >> q;
	memset(ans, -1, 4*q);
	for(int i=0; i<q; ++i) {
		cin >> ql[i] >> qr[i], --ql[i], --qr[i];
		ta[qr[i]].push_back(i);
	}
	solve();
	for(int i=0; i<n; ++i)
		h[i]=-h[i];
	solve();
	for(int i=0; i<q; ++i)
		cout << ans[i] << "\n";
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 29952 KB Output is correct
2 Correct 29 ms 30072 KB Output is correct
3 Correct 27 ms 30080 KB Output is correct
4 Correct 28 ms 30076 KB Output is correct
5 Correct 28 ms 30072 KB Output is correct
6 Correct 27 ms 30072 KB Output is correct
7 Correct 28 ms 30080 KB Output is correct
8 Correct 27 ms 30072 KB Output is correct
9 Correct 27 ms 30080 KB Output is correct
10 Correct 29 ms 30080 KB Output is correct
11 Correct 29 ms 29952 KB Output is correct
12 Correct 29 ms 30072 KB Output is correct
13 Correct 27 ms 30080 KB Output is correct
14 Correct 28 ms 30080 KB Output is correct
15 Correct 29 ms 30072 KB Output is correct
16 Correct 28 ms 30072 KB Output is correct
17 Correct 29 ms 30080 KB Output is correct
18 Correct 29 ms 30080 KB Output is correct
19 Correct 28 ms 30080 KB Output is correct
20 Correct 27 ms 30080 KB Output is correct
21 Correct 27 ms 30072 KB Output is correct
22 Correct 27 ms 30080 KB Output is correct
23 Correct 28 ms 30072 KB Output is correct
24 Correct 27 ms 30080 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 29952 KB Output is correct
2 Correct 29 ms 30072 KB Output is correct
3 Correct 27 ms 30080 KB Output is correct
4 Correct 28 ms 30076 KB Output is correct
5 Correct 28 ms 30072 KB Output is correct
6 Correct 27 ms 30072 KB Output is correct
7 Correct 28 ms 30080 KB Output is correct
8 Correct 27 ms 30072 KB Output is correct
9 Correct 27 ms 30080 KB Output is correct
10 Correct 29 ms 30080 KB Output is correct
11 Correct 29 ms 29952 KB Output is correct
12 Correct 29 ms 30072 KB Output is correct
13 Correct 27 ms 30080 KB Output is correct
14 Correct 28 ms 30080 KB Output is correct
15 Correct 29 ms 30072 KB Output is correct
16 Correct 28 ms 30072 KB Output is correct
17 Correct 29 ms 30080 KB Output is correct
18 Correct 29 ms 30080 KB Output is correct
19 Correct 28 ms 30080 KB Output is correct
20 Correct 27 ms 30080 KB Output is correct
21 Correct 27 ms 30072 KB Output is correct
22 Correct 27 ms 30080 KB Output is correct
23 Correct 28 ms 30072 KB Output is correct
24 Correct 27 ms 30080 KB Output is correct
25 Correct 106 ms 35036 KB Output is correct
26 Correct 38 ms 30804 KB Output is correct
27 Correct 137 ms 37228 KB Output is correct
28 Correct 143 ms 37432 KB Output is correct
29 Correct 107 ms 35064 KB Output is correct
30 Correct 103 ms 34808 KB Output is correct
31 Correct 120 ms 36472 KB Output is correct
32 Correct 147 ms 37240 KB Output is correct
33 Correct 131 ms 36828 KB Output is correct
34 Correct 84 ms 33500 KB Output is correct
35 Correct 141 ms 37112 KB Output is correct
36 Correct 144 ms 37368 KB Output is correct
37 Correct 95 ms 33784 KB Output is correct
38 Correct 138 ms 36332 KB Output is correct
39 Correct 43 ms 31096 KB Output is correct
40 Correct 137 ms 36220 KB Output is correct
41 Correct 113 ms 34680 KB Output is correct
42 Correct 143 ms 36216 KB Output is correct
43 Correct 65 ms 32248 KB Output is correct
44 Correct 140 ms 36328 KB Output is correct
45 Correct 48 ms 31224 KB Output is correct
46 Correct 151 ms 36216 KB Output is correct
47 Correct 59 ms 31736 KB Output is correct
48 Correct 156 ms 36456 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 423 ms 44408 KB Output is correct
2 Correct 476 ms 46040 KB Output is correct
3 Correct 318 ms 41100 KB Output is correct
4 Correct 473 ms 46128 KB Output is correct
5 Correct 185 ms 37240 KB Output is correct
6 Correct 470 ms 46048 KB Output is correct
7 Correct 400 ms 43968 KB Output is correct
8 Correct 444 ms 46016 KB Output is correct
9 Correct 71 ms 32504 KB Output is correct
10 Correct 433 ms 45944 KB Output is correct
11 Correct 280 ms 40004 KB Output is correct
12 Correct 460 ms 46140 KB Output is correct
13 Correct 263 ms 42456 KB Output is correct
14 Correct 261 ms 41864 KB Output is correct
15 Correct 249 ms 42488 KB Output is correct
16 Correct 217 ms 43100 KB Output is correct
17 Correct 265 ms 42356 KB Output is correct
18 Correct 251 ms 42232 KB Output is correct
19 Correct 260 ms 42064 KB Output is correct
20 Correct 248 ms 42052 KB Output is correct
21 Correct 288 ms 42076 KB Output is correct
22 Correct 266 ms 42484 KB Output is correct
23 Correct 276 ms 42108 KB Output is correct
24 Correct 219 ms 42740 KB Output is correct

Subtask #4
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 29952 KB Output is correct
2 Correct 29 ms 30072 KB Output is correct
3 Correct 27 ms 30080 KB Output is correct
4 Correct 28 ms 30076 KB Output is correct
5 Correct 28 ms 30072 KB Output is correct
6 Correct 27 ms 30072 KB Output is correct
7 Correct 28 ms 30080 KB Output is correct
8 Correct 27 ms 30072 KB Output is correct
9 Correct 27 ms 30080 KB Output is correct
10 Correct 29 ms 30080 KB Output is correct
11 Correct 29 ms 29952 KB Output is correct
12 Correct 29 ms 30072 KB Output is correct
13 Correct 27 ms 30080 KB Output is correct
14 Correct 28 ms 30080 KB Output is correct
15 Correct 29 ms 30072 KB Output is correct
16 Correct 28 ms 30072 KB Output is correct
17 Correct 29 ms 30080 KB Output is correct
18 Correct 29 ms 30080 KB Output is correct
19 Correct 28 ms 30080 KB Output is correct
20 Correct 27 ms 30080 KB Output is correct
21 Correct 27 ms 30072 KB Output is correct
22 Correct 27 ms 30080 KB Output is correct
23 Correct 28 ms 30072 KB Output is correct
24 Correct 27 ms 30080 KB Output is correct
25 Correct 106 ms 35036 KB Output is correct
26 Correct 38 ms 30804 KB Output is correct
27 Correct 137 ms 37228 KB Output is correct
28 Correct 143 ms 37432 KB Output is correct
29 Correct 107 ms 35064 KB Output is correct
30 Correct 103 ms 34808 KB Output is correct
31 Correct 120 ms 36472 KB Output is correct
32 Correct 147 ms 37240 KB Output is correct
33 Correct 131 ms 36828 KB Output is correct
34 Correct 84 ms 33500 KB Output is correct
35 Correct 141 ms 37112 KB Output is correct
36 Correct 144 ms 37368 KB Output is correct
37 Correct 95 ms 33784 KB Output is correct
38 Correct 138 ms 36332 KB Output is correct
39 Correct 43 ms 31096 KB Output is correct
40 Correct 137 ms 36220 KB Output is correct
41 Correct 113 ms 34680 KB Output is correct
42 Correct 143 ms 36216 KB Output is correct
43 Correct 65 ms 32248 KB Output is correct
44 Correct 140 ms 36328 KB Output is correct
45 Correct 48 ms 31224 KB Output is correct
46 Correct 151 ms 36216 KB Output is correct
47 Correct 59 ms 31736 KB Output is correct
48 Correct 156 ms 36456 KB Output is correct
49 Correct 423 ms 44408 KB Output is correct
50 Correct 476 ms 46040 KB Output is correct
51 Correct 318 ms 41100 KB Output is correct
52 Correct 473 ms 46128 KB Output is correct
53 Correct 185 ms 37240 KB Output is correct
54 Correct 470 ms 46048 KB Output is correct
55 Correct 400 ms 43968 KB Output is correct
56 Correct 444 ms 46016 KB Output is correct
57 Correct 71 ms 32504 KB Output is correct
58 Correct 433 ms 45944 KB Output is correct
59 Correct 280 ms 40004 KB Output is correct
60 Correct 460 ms 46140 KB Output is correct
61 Correct 263 ms 42456 KB Output is correct
62 Correct 261 ms 41864 KB Output is correct
63 Correct 249 ms 42488 KB Output is correct
64 Correct 217 ms 43100 KB Output is correct
65 Correct 265 ms 42356 KB Output is correct
66 Correct 251 ms 42232 KB Output is correct
67 Correct 260 ms 42064 KB Output is correct
68 Correct 248 ms 42052 KB Output is correct
69 Correct 288 ms 42076 KB Output is correct
70 Correct 266 ms 42484 KB Output is correct
71 Correct 276 ms 42108 KB Output is correct
72 Correct 219 ms 42740 KB Output is correct
73 Correct 667 ms 52216 KB Output is correct
74 Correct 493 ms 46868 KB Output is correct
75 Correct 607 ms 50688 KB Output is correct
76 Correct 761 ms 56244 KB Output is correct
77 Correct 378 ms 44024 KB Output is correct
78 Correct 676 ms 53084 KB Output is correct
79 Correct 726 ms 53752 KB Output is correct
80 Correct 802 ms 56184 KB Output is correct
81 Correct 247 ms 40316 KB Output is correct
82 Correct 627 ms 51404 KB Output is correct
83 Correct 539 ms 49404 KB Output is correct
84 Correct 803 ms 56024 KB Output is correct
85 Correct 469 ms 48116 KB Output is correct
86 Correct 579 ms 50820 KB Output is correct
87 Correct 314 ms 44196 KB Output is correct
88 Correct 520 ms 52216 KB Output is correct
89 Correct 539 ms 49012 KB Output is correct
90 Correct 666 ms 51156 KB Output is correct
91 Correct 381 ms 45516 KB Output is correct
92 Correct 892 ms 51108 KB Output is correct
93 Correct 347 ms 43988 KB Output is correct
94 Correct 565 ms 51364 KB Output is correct
95 Correct 347 ms 44788 KB Output is correct
96 Correct 623 ms 51932 KB Output is correct