답안 #1022879

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1022879	2024-07-14T07:04:19 Z	vjudge1	송신탑 (IOI22_towers)	C++17	37 / 100	4000 ms	511860 KB

towers

#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> pii;

const int maxn = 1e5 + 100;

int n;
int a[maxn];
int t[maxn];
int dp[maxn];
vector<pii> g[maxn];
int l[maxn];
int r[maxn];
int pref[maxn];

void upd(int i, int x){
	for(; i <= n; i |= (i + 1)) t[i] = max(t[i], x);
}

int get(int i){
	int res = 0;
	for(; i > 0; i = (i & (i + 1)) - 1) res = max(res, t[i]);
	return res;
}

void init(int N, std::vector<int> H){
	n = N; 
	for(int i = 1; i <= n; i++){
		a[i] = H[i-1];
	}
	for(int i = 1; i <= n; i++){
		pref[i] = pref[i-1];
		if(a[i] < min(a[i+1], a[i-1])) pref[i]++;
	}
}

int max_towers(int L, int R, int D){
	if(L == R) return 1;
	L++; R++;
	if(D == 1){
		int ans = pref[R-1] - pref[L];
		if(a[L] < a[L+1]) ans++;
		if(a[R] < a[R-1]) ans++;
		return ans;
	}
	for(int i = 1; i <= n; i++){
		t[i] = 0;
		g[i].clear();
	}
	vector<int> v;
	for(int i = L; i <= R; i++){
		while(v.size() && a[v.back()] <= a[i]) v.pop_back();
		v.push_back(i);
		l[i] = L - 1;
		for(int tl = 0, tr = v.size() - 1; tl <= tr;){
			int mid = (tl + tr) >> 1;
			if(a[v[mid]] - D < a[i]) tr = mid - 1;
			else tl = mid + 1, l[i] = v[mid];
		}
	}
	v.clear();
	for(int i = R; i >= L; i--){
		while(v.size() && a[v.back()] <= a[i]) v.pop_back();
		v.push_back(i);
		r[i] = R + 1;
		for(int tl = 0, tr = v.size() - 1; tl <= tr;){
			int mid = (tl + tr) >> 1;
			if(a[v[mid]] - D < a[i]) tr = mid - 1;
			else tl = mid + 1, r[i] = v[mid];
		}
	}
	int ans = 0;
	for(int i = L; i <= R; i++){
		for(auto [p, x]: g[i]){
			upd(p, x);
		}
		dp[i] = get(l[i]) + 1;
		g[r[i]].push_back({i, dp[i]});
		ans = max(ans, dp[i]);
	}
	return ans;
}

Subtask #1
0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	4038 ms	511860 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #2
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4440 KB	Output is correct
2	Correct	1 ms	4440 KB	Output is correct
3	Correct	1 ms	4440 KB	Output is correct
4	Correct	1 ms	4440 KB	Output is correct
5	Correct	1 ms	4440 KB	Output is correct
6	Correct	1 ms	4440 KB	Output is correct
7	Correct	1 ms	4440 KB	Output is correct
8	Correct	2 ms	4440 KB	Output is correct
9	Correct	1 ms	4440 KB	Output is correct
10	Correct	1 ms	4440 KB	Output is correct
11	Correct	1 ms	3672 KB	Output is correct
12	Correct	1 ms	3672 KB	Output is correct
13	Correct	1 ms	4440 KB	Output is correct
14	Correct	1 ms	4440 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	2 ms	4440 KB	Output is correct
17	Correct	1 ms	4532 KB	Output is correct
18	Correct	1 ms	4440 KB	Output is correct
19	Correct	1 ms	4440 KB	Output is correct
20	Correct	1 ms	4440 KB	Output is correct
21	Correct	2 ms	4440 KB	Output is correct
22	Correct	1 ms	4440 KB	Output is correct
23	Correct	1 ms	4440 KB	Output is correct
24	Correct	1 ms	4440 KB	Output is correct
25	Correct	1 ms	4440 KB	Output is correct
26	Correct	1 ms	4440 KB	Output is correct
27	Correct	1 ms	4440 KB	Output is correct
28	Correct	1 ms	4440 KB	Output is correct
29	Correct	1 ms	4440 KB	Output is correct
30	Correct	1 ms	3672 KB	Output is correct
31	Correct	2 ms	3796 KB	Output is correct
32	Correct	1 ms	4440 KB	Output is correct
33	Correct	2 ms	4440 KB	Output is correct
34	Correct	1 ms	4440 KB	Output is correct
35	Correct	2 ms	3672 KB	Output is correct

Subtask #3
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4440 KB	Output is correct
2	Correct	1 ms	4440 KB	Output is correct
3	Correct	1 ms	4440 KB	Output is correct
4	Correct	1 ms	4440 KB	Output is correct
5	Correct	1 ms	4440 KB	Output is correct
6	Correct	1 ms	4440 KB	Output is correct
7	Correct	1 ms	4440 KB	Output is correct
8	Correct	2 ms	4440 KB	Output is correct
9	Correct	1 ms	4440 KB	Output is correct
10	Correct	1 ms	4440 KB	Output is correct
11	Correct	1 ms	3672 KB	Output is correct
12	Correct	1 ms	3672 KB	Output is correct
13	Correct	1 ms	4440 KB	Output is correct
14	Correct	1 ms	4440 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	2 ms	4440 KB	Output is correct
17	Correct	1 ms	4532 KB	Output is correct
18	Correct	1 ms	4440 KB	Output is correct
19	Correct	1 ms	4440 KB	Output is correct
20	Correct	1 ms	4440 KB	Output is correct
21	Correct	2 ms	4440 KB	Output is correct
22	Correct	1 ms	4440 KB	Output is correct
23	Correct	1 ms	4440 KB	Output is correct
24	Correct	1 ms	4440 KB	Output is correct
25	Correct	1 ms	4440 KB	Output is correct
26	Correct	1 ms	4440 KB	Output is correct
27	Correct	1 ms	4440 KB	Output is correct
28	Correct	1 ms	4440 KB	Output is correct
29	Correct	1 ms	4440 KB	Output is correct
30	Correct	1 ms	3672 KB	Output is correct
31	Correct	2 ms	3796 KB	Output is correct
32	Correct	1 ms	4440 KB	Output is correct
33	Correct	2 ms	4440 KB	Output is correct
34	Correct	1 ms	4440 KB	Output is correct
35	Correct	2 ms	3672 KB	Output is correct
36	Correct	9 ms	5464 KB	Output is correct
37	Correct	16 ms	5832 KB	Output is correct
38	Correct	11 ms	5720 KB	Output is correct
39	Correct	18 ms	5828 KB	Output is correct
40	Correct	14 ms	5972 KB	Output is correct
41	Correct	14 ms	6560 KB	Output is correct
42	Correct	17 ms	5072 KB	Output is correct
43	Correct	13 ms	6608 KB	Output is correct
44	Correct	17 ms	5828 KB	Output is correct
45	Correct	9 ms	5720 KB	Output is correct
46	Correct	15 ms	5816 KB	Output is correct
47	Correct	9 ms	5812 KB	Output is correct
48	Correct	9 ms	5720 KB	Output is correct
49	Correct	9 ms	5720 KB	Output is correct
50	Correct	9 ms	5720 KB	Output is correct
51	Correct	9 ms	5720 KB	Output is correct
52	Correct	9 ms	5720 KB	Output is correct
53	Correct	16 ms	5700 KB	Output is correct
54	Correct	10 ms	5720 KB	Output is correct
55	Correct	9 ms	5708 KB	Output is correct
56	Correct	9 ms	5720 KB	Output is correct
57	Correct	16 ms	6532 KB	Output is correct
58	Correct	20 ms	6864 KB	Output is correct
59	Correct	25 ms	6864 KB	Output is correct
60	Correct	17 ms	7376 KB	Output is correct
61	Correct	19 ms	7120 KB	Output is correct
62	Correct	17 ms	6864 KB	Output is correct
63	Correct	18 ms	7120 KB	Output is correct
64	Correct	17 ms	7632 KB	Output is correct
65	Correct	15 ms	7224 KB	Output is correct
66	Correct	17 ms	7376 KB	Output is correct
67	Correct	19 ms	7416 KB	Output is correct

Subtask #4
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	517 ms	5720 KB	Output is correct
2	Correct	637 ms	5720 KB	Output is correct
3	Correct	642 ms	5732 KB	Output is correct
4	Correct	684 ms	5720 KB	Output is correct
5	Correct	616 ms	5720 KB	Output is correct
6	Correct	576 ms	5720 KB	Output is correct
7	Correct	657 ms	5720 KB	Output is correct
8	Correct	660 ms	5720 KB	Output is correct
9	Correct	650 ms	5720 KB	Output is correct
10	Correct	600 ms	5720 KB	Output is correct
11	Correct	675 ms	4952 KB	Output is correct
12	Correct	597 ms	5716 KB	Output is correct
13	Correct	607 ms	5720 KB	Output is correct
14	Correct	1 ms	4440 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	1 ms	4440 KB	Output is correct
17	Correct	9 ms	5704 KB	Output is correct
18	Correct	16 ms	5720 KB	Output is correct
19	Correct	10 ms	5720 KB	Output is correct
20	Correct	9 ms	5720 KB	Output is correct
21	Correct	9 ms	5720 KB	Output is correct
22	Correct	11 ms	5712 KB	Output is correct
23	Correct	10 ms	4956 KB	Output is correct
24	Correct	10 ms	5816 KB	Output is correct
25	Correct	10 ms	5720 KB	Output is correct
26	Correct	9 ms	5808 KB	Output is correct
27	Correct	1 ms	4440 KB	Output is correct
28	Correct	1 ms	3672 KB	Output is correct
29	Correct	1 ms	4528 KB	Output is correct
30	Correct	1 ms	4440 KB	Output is correct
31	Correct	1 ms	4440 KB	Output is correct
32	Correct	1 ms	4440 KB	Output is correct
33	Correct	1 ms	4536 KB	Output is correct
34	Correct	1 ms	4524 KB	Output is correct
35	Correct	1 ms	4440 KB	Output is correct
36	Correct	1 ms	4440 KB	Output is correct

Subtask #5
0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	4114 ms	267228 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #6
0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4440 KB	Output is correct
2	Correct	1 ms	4440 KB	Output is correct
3	Correct	1 ms	4440 KB	Output is correct
4	Correct	1 ms	4440 KB	Output is correct
5	Correct	1 ms	4440 KB	Output is correct
6	Correct	1 ms	4440 KB	Output is correct
7	Correct	1 ms	4440 KB	Output is correct
8	Correct	2 ms	4440 KB	Output is correct
9	Correct	1 ms	4440 KB	Output is correct
10	Correct	1 ms	4440 KB	Output is correct
11	Correct	1 ms	3672 KB	Output is correct
12	Correct	1 ms	3672 KB	Output is correct
13	Correct	1 ms	4440 KB	Output is correct
14	Correct	1 ms	4440 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	2 ms	4440 KB	Output is correct
17	Correct	1 ms	4532 KB	Output is correct
18	Correct	1 ms	4440 KB	Output is correct
19	Correct	1 ms	4440 KB	Output is correct
20	Correct	1 ms	4440 KB	Output is correct
21	Correct	2 ms	4440 KB	Output is correct
22	Correct	1 ms	4440 KB	Output is correct
23	Correct	1 ms	4440 KB	Output is correct
24	Correct	1 ms	4440 KB	Output is correct
25	Correct	1 ms	4440 KB	Output is correct
26	Correct	1 ms	4440 KB	Output is correct
27	Correct	1 ms	4440 KB	Output is correct
28	Correct	1 ms	4440 KB	Output is correct
29	Correct	1 ms	4440 KB	Output is correct
30	Correct	1 ms	3672 KB	Output is correct
31	Correct	2 ms	3796 KB	Output is correct
32	Correct	1 ms	4440 KB	Output is correct
33	Correct	2 ms	4440 KB	Output is correct
34	Correct	1 ms	4440 KB	Output is correct
35	Correct	2 ms	3672 KB	Output is correct
36	Correct	9 ms	5464 KB	Output is correct
37	Correct	16 ms	5832 KB	Output is correct
38	Correct	11 ms	5720 KB	Output is correct
39	Correct	18 ms	5828 KB	Output is correct
40	Correct	14 ms	5972 KB	Output is correct
41	Correct	14 ms	6560 KB	Output is correct
42	Correct	17 ms	5072 KB	Output is correct
43	Correct	13 ms	6608 KB	Output is correct
44	Correct	17 ms	5828 KB	Output is correct
45	Correct	9 ms	5720 KB	Output is correct
46	Correct	15 ms	5816 KB	Output is correct
47	Correct	9 ms	5812 KB	Output is correct
48	Correct	9 ms	5720 KB	Output is correct
49	Correct	9 ms	5720 KB	Output is correct
50	Correct	9 ms	5720 KB	Output is correct
51	Correct	9 ms	5720 KB	Output is correct
52	Correct	9 ms	5720 KB	Output is correct
53	Correct	16 ms	5700 KB	Output is correct
54	Correct	10 ms	5720 KB	Output is correct
55	Correct	9 ms	5708 KB	Output is correct
56	Correct	9 ms	5720 KB	Output is correct
57	Correct	16 ms	6532 KB	Output is correct
58	Correct	20 ms	6864 KB	Output is correct
59	Correct	25 ms	6864 KB	Output is correct
60	Correct	17 ms	7376 KB	Output is correct
61	Correct	19 ms	7120 KB	Output is correct
62	Correct	17 ms	6864 KB	Output is correct
63	Correct	18 ms	7120 KB	Output is correct
64	Correct	17 ms	7632 KB	Output is correct
65	Correct	15 ms	7224 KB	Output is correct
66	Correct	17 ms	7376 KB	Output is correct
67	Correct	19 ms	7416 KB	Output is correct
68	Correct	517 ms	5720 KB	Output is correct
69	Correct	637 ms	5720 KB	Output is correct
70	Correct	642 ms	5732 KB	Output is correct
71	Correct	684 ms	5720 KB	Output is correct
72	Correct	616 ms	5720 KB	Output is correct
73	Correct	576 ms	5720 KB	Output is correct
74	Correct	657 ms	5720 KB	Output is correct
75	Correct	660 ms	5720 KB	Output is correct
76	Correct	650 ms	5720 KB	Output is correct
77	Correct	600 ms	5720 KB	Output is correct
78	Correct	675 ms	4952 KB	Output is correct
79	Correct	597 ms	5716 KB	Output is correct
80	Correct	607 ms	5720 KB	Output is correct
81	Correct	1 ms	4440 KB	Output is correct
82	Correct	1 ms	4440 KB	Output is correct
83	Correct	1 ms	4440 KB	Output is correct
84	Correct	9 ms	5704 KB	Output is correct
85	Correct	16 ms	5720 KB	Output is correct
86	Correct	10 ms	5720 KB	Output is correct
87	Correct	9 ms	5720 KB	Output is correct
88	Correct	9 ms	5720 KB	Output is correct
89	Correct	11 ms	5712 KB	Output is correct
90	Correct	10 ms	4956 KB	Output is correct
91	Correct	10 ms	5816 KB	Output is correct
92	Correct	10 ms	5720 KB	Output is correct
93	Correct	9 ms	5808 KB	Output is correct
94	Correct	1 ms	4440 KB	Output is correct
95	Correct	1 ms	3672 KB	Output is correct
96	Correct	1 ms	4528 KB	Output is correct
97	Correct	1 ms	4440 KB	Output is correct
98	Correct	1 ms	4440 KB	Output is correct
99	Correct	1 ms	4440 KB	Output is correct
100	Correct	1 ms	4536 KB	Output is correct
101	Correct	1 ms	4524 KB	Output is correct
102	Correct	1 ms	4440 KB	Output is correct
103	Correct	1 ms	4440 KB	Output is correct
104	Execution timed out	4011 ms	66328 KB	Time limit exceeded
105	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	4038 ms	511860 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

답안 #1022879

Compilation message

Subtask #1 0 / 4.0

Subtask #2 11.0 / 11.0

Subtask #3 12.0 / 12.0

Subtask #4 14.0 / 14.0

Subtask #5 0 / 17.0

Subtask #6 0 / 19.0

Subtask #7 0 / 23.0

Subtask #1
0 / 4.0

Subtask #2
11.0 / 11.0

Subtask #3
12.0 / 12.0

Subtask #4
14.0 / 14.0

Subtask #5
0 / 17.0

Subtask #6
0 / 19.0

Subtask #7
0 / 23.0