Submission #622520

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
622520	2022-08-04T10:54:10 Z	dozer	Tortoise (CEOI21_tortoise)	C++14	48 / 100	3000 ms	392652 KB

tortoise

#include <bits/stdc++.h>
using namespace std;
#define sp " "
#define endl "\n"
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define pb push_back
#define fileio() freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#define pii pair<int, int>
#define st first
#define nd second
#define N 10005
#define modulo 1000000007

int dp[N][N];
vector<int> pg;
int arr[N], n;

int f(int time, int ind)
{
	if (time > 2 * (n - 1) || ind > n) return 0;
	if (arr[ind] == -1) return dp[time][ind] = f(time + 1, ind + 1);
	if (dp[time][ind] != -1) return dp[time][ind];
	auto it = lower_bound(pg.begin(), pg.end(), ind);
	int nxt = modulo, prv = - modulo;
	if (it != pg.end()) nxt = *it;
	if (it != pg.begin())
	{
		it--;
		prv = *it;
	}
	int dist = min(ind - prv, nxt - ind);
	int tmp = time, inc = 0, ans = 0;
	while(tmp <= ind * 2 - 2 && inc < arr[ind])
	{
		if (nxt <= n)
		{
			for (int i = ind + 1; i <= nxt; i++)//for the last candy we buy, we can go to the next pg and come back to a forward shop
			{
				ans = max(ans, f(tmp + nxt - ind + nxt - i, i) + inc + 1);
			}
		}
		
		ans = max(ans, f(tmp + 1, ind + 1) + inc); // we can just continue to the next place without buying more candies
		ans = max(ans, inc + 1);//buy it and finish the process
		tmp += 2 * dist;
		inc++;
	}
	ans = max(ans, f(tmp + 1, ind + 1) + inc);
	ans = max(ans, f(time + 1, ind + 1));
	//cout<<time<<sp<<ind<<sp<<ans<<endl;
	return dp[time][ind] = ans;
}

int32_t main()
{
	fastio();
	memset(dp, -1, sizeof(dp));

	cin>>n;
	long long sum = 0;
	for (int i = 1; i <= n; i++)
	{
		cin>>arr[i];
		if (arr[i] == -1) pg.pb(i);
		else sum += arr[i];
	}

	cout<<sum - f(0, 1)<<endl;
	cerr<<"time taken: "<<(float)clock() / CLOCKS_PER_SEC<<" seconds\n";
}

Subtask #1
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	139 ms	392056 KB	Output is correct
2	Correct	141 ms	392080 KB	Output is correct
3	Correct	137 ms	392020 KB	Output is correct
4	Correct	138 ms	392036 KB	Output is correct
5	Correct	139 ms	391992 KB	Output is correct
6	Correct	136 ms	392044 KB	Output is correct
7	Correct	138 ms	392120 KB	Output is correct
8	Correct	145 ms	391964 KB	Output is correct
9	Correct	141 ms	392076 KB	Output is correct
10	Correct	139 ms	392044 KB	Output is correct
11	Correct	138 ms	392028 KB	Output is correct
12	Correct	147 ms	392004 KB	Output is correct
13	Correct	140 ms	392176 KB	Output is correct
14	Correct	136 ms	392008 KB	Output is correct
15	Correct	143 ms	392176 KB	Output is correct
16	Correct	143 ms	392076 KB	Output is correct
17	Correct	139 ms	392008 KB	Output is correct
18	Correct	138 ms	392020 KB	Output is correct
19	Correct	138 ms	392036 KB	Output is correct
20	Correct	157 ms	392012 KB	Output is correct
21	Correct	140 ms	391992 KB	Output is correct
22	Correct	143 ms	392016 KB	Output is correct
23	Correct	144 ms	392088 KB	Output is correct
24	Correct	140 ms	391996 KB	Output is correct
25	Correct	141 ms	391984 KB	Output is correct
26	Correct	148 ms	392064 KB	Output is correct

Subtask #2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	139 ms	392056 KB	Output is correct
2	Correct	141 ms	392080 KB	Output is correct
3	Correct	137 ms	392020 KB	Output is correct
4	Correct	138 ms	392036 KB	Output is correct
5	Correct	139 ms	391992 KB	Output is correct
6	Correct	136 ms	392044 KB	Output is correct
7	Correct	138 ms	392120 KB	Output is correct
8	Correct	145 ms	391964 KB	Output is correct
9	Correct	141 ms	392076 KB	Output is correct
10	Correct	139 ms	392044 KB	Output is correct
11	Correct	138 ms	392028 KB	Output is correct
12	Correct	147 ms	392004 KB	Output is correct
13	Correct	140 ms	392176 KB	Output is correct
14	Correct	136 ms	392008 KB	Output is correct
15	Correct	143 ms	392176 KB	Output is correct
16	Correct	143 ms	392076 KB	Output is correct
17	Correct	139 ms	392008 KB	Output is correct
18	Correct	138 ms	392020 KB	Output is correct
19	Correct	138 ms	392036 KB	Output is correct
20	Correct	157 ms	392012 KB	Output is correct
21	Correct	140 ms	391992 KB	Output is correct
22	Correct	143 ms	392016 KB	Output is correct
23	Correct	144 ms	392088 KB	Output is correct
24	Correct	140 ms	391996 KB	Output is correct
25	Correct	141 ms	391984 KB	Output is correct
26	Correct	148 ms	392064 KB	Output is correct
27	Correct	139 ms	391980 KB	Output is correct
28	Correct	141 ms	392000 KB	Output is correct
29	Correct	152 ms	392060 KB	Output is correct
30	Correct	143 ms	392004 KB	Output is correct
31	Correct	142 ms	392016 KB	Output is correct
32	Correct	138 ms	392092 KB	Output is correct
33	Correct	148 ms	392012 KB	Output is correct
34	Correct	153 ms	392012 KB	Output is correct
35	Correct	141 ms	392012 KB	Output is correct
36	Correct	142 ms	392028 KB	Output is correct
37	Correct	171 ms	391992 KB	Output is correct
38	Correct	143 ms	391988 KB	Output is correct
39	Correct	141 ms	391988 KB	Output is correct
40	Correct	144 ms	392104 KB	Output is correct
41	Correct	149 ms	392060 KB	Output is correct

Subtask #3
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	139 ms	392056 KB	Output is correct
2	Correct	141 ms	392080 KB	Output is correct
3	Correct	137 ms	392020 KB	Output is correct
4	Correct	138 ms	392036 KB	Output is correct
5	Correct	139 ms	391992 KB	Output is correct
6	Correct	136 ms	392044 KB	Output is correct
7	Correct	138 ms	392120 KB	Output is correct
8	Correct	145 ms	391964 KB	Output is correct
9	Correct	141 ms	392076 KB	Output is correct
10	Correct	139 ms	392044 KB	Output is correct
11	Correct	138 ms	392028 KB	Output is correct
12	Correct	147 ms	392004 KB	Output is correct
13	Correct	140 ms	392176 KB	Output is correct
14	Correct	136 ms	392008 KB	Output is correct
15	Correct	143 ms	392176 KB	Output is correct
16	Correct	143 ms	392076 KB	Output is correct
17	Correct	139 ms	392008 KB	Output is correct
18	Correct	138 ms	392020 KB	Output is correct
19	Correct	138 ms	392036 KB	Output is correct
20	Correct	157 ms	392012 KB	Output is correct
21	Correct	140 ms	391992 KB	Output is correct
22	Correct	143 ms	392016 KB	Output is correct
23	Correct	144 ms	392088 KB	Output is correct
24	Correct	140 ms	391996 KB	Output is correct
25	Correct	141 ms	391984 KB	Output is correct
26	Correct	148 ms	392064 KB	Output is correct
27	Correct	139 ms	391980 KB	Output is correct
28	Correct	141 ms	392000 KB	Output is correct
29	Correct	152 ms	392060 KB	Output is correct
30	Correct	143 ms	392004 KB	Output is correct
31	Correct	142 ms	392016 KB	Output is correct
32	Correct	138 ms	392092 KB	Output is correct
33	Correct	148 ms	392012 KB	Output is correct
34	Correct	153 ms	392012 KB	Output is correct
35	Correct	141 ms	392012 KB	Output is correct
36	Correct	142 ms	392028 KB	Output is correct
37	Correct	171 ms	391992 KB	Output is correct
38	Correct	143 ms	391988 KB	Output is correct
39	Correct	141 ms	391988 KB	Output is correct
40	Correct	144 ms	392104 KB	Output is correct
41	Correct	149 ms	392060 KB	Output is correct
42	Correct	147 ms	392056 KB	Output is correct
43	Correct	145 ms	392020 KB	Output is correct
44	Correct	140 ms	392012 KB	Output is correct
45	Correct	159 ms	392040 KB	Output is correct
46	Correct	140 ms	391988 KB	Output is correct
47	Correct	141 ms	392092 KB	Output is correct
48	Correct	140 ms	392024 KB	Output is correct
49	Correct	153 ms	392012 KB	Output is correct
50	Correct	143 ms	392136 KB	Output is correct
51	Correct	146 ms	391988 KB	Output is correct
52	Correct	150 ms	392072 KB	Output is correct
53	Correct	153 ms	391984 KB	Output is correct
54	Correct	153 ms	392012 KB	Output is correct
55	Correct	166 ms	392044 KB	Output is correct
56	Correct	142 ms	392076 KB	Output is correct
57	Correct	142 ms	392048 KB	Output is correct
58	Correct	143 ms	392100 KB	Output is correct
59	Correct	154 ms	392076 KB	Output is correct
60	Correct	159 ms	392044 KB	Output is correct
61	Correct	139 ms	392020 KB	Output is correct
62	Correct	144 ms	392112 KB	Output is correct

Subtask #4
0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	139 ms	392056 KB	Output is correct
2	Correct	141 ms	392080 KB	Output is correct
3	Correct	137 ms	392020 KB	Output is correct
4	Correct	138 ms	392036 KB	Output is correct
5	Correct	139 ms	391992 KB	Output is correct
6	Correct	136 ms	392044 KB	Output is correct
7	Correct	138 ms	392120 KB	Output is correct
8	Correct	145 ms	391964 KB	Output is correct
9	Correct	141 ms	392076 KB	Output is correct
10	Correct	139 ms	392044 KB	Output is correct
11	Correct	138 ms	392028 KB	Output is correct
12	Correct	147 ms	392004 KB	Output is correct
13	Correct	140 ms	392176 KB	Output is correct
14	Correct	136 ms	392008 KB	Output is correct
15	Correct	143 ms	392176 KB	Output is correct
16	Correct	143 ms	392076 KB	Output is correct
17	Correct	139 ms	392008 KB	Output is correct
18	Correct	138 ms	392020 KB	Output is correct
19	Correct	138 ms	392036 KB	Output is correct
20	Correct	157 ms	392012 KB	Output is correct
21	Correct	140 ms	391992 KB	Output is correct
22	Correct	143 ms	392016 KB	Output is correct
23	Correct	144 ms	392088 KB	Output is correct
24	Correct	140 ms	391996 KB	Output is correct
25	Correct	141 ms	391984 KB	Output is correct
26	Correct	148 ms	392064 KB	Output is correct
27	Correct	139 ms	391980 KB	Output is correct
28	Correct	141 ms	392000 KB	Output is correct
29	Correct	152 ms	392060 KB	Output is correct
30	Correct	143 ms	392004 KB	Output is correct
31	Correct	142 ms	392016 KB	Output is correct
32	Correct	138 ms	392092 KB	Output is correct
33	Correct	148 ms	392012 KB	Output is correct
34	Correct	153 ms	392012 KB	Output is correct
35	Correct	141 ms	392012 KB	Output is correct
36	Correct	142 ms	392028 KB	Output is correct
37	Correct	171 ms	391992 KB	Output is correct
38	Correct	143 ms	391988 KB	Output is correct
39	Correct	141 ms	391988 KB	Output is correct
40	Correct	144 ms	392104 KB	Output is correct
41	Correct	149 ms	392060 KB	Output is correct
42	Correct	147 ms	392056 KB	Output is correct
43	Correct	145 ms	392020 KB	Output is correct
44	Correct	140 ms	392012 KB	Output is correct
45	Correct	159 ms	392040 KB	Output is correct
46	Correct	140 ms	391988 KB	Output is correct
47	Correct	141 ms	392092 KB	Output is correct
48	Correct	140 ms	392024 KB	Output is correct
49	Correct	153 ms	392012 KB	Output is correct
50	Correct	143 ms	392136 KB	Output is correct
51	Correct	146 ms	391988 KB	Output is correct
52	Correct	150 ms	392072 KB	Output is correct
53	Correct	153 ms	391984 KB	Output is correct
54	Correct	153 ms	392012 KB	Output is correct
55	Correct	166 ms	392044 KB	Output is correct
56	Correct	142 ms	392076 KB	Output is correct
57	Correct	142 ms	392048 KB	Output is correct
58	Correct	143 ms	392100 KB	Output is correct
59	Correct	154 ms	392076 KB	Output is correct
60	Correct	159 ms	392044 KB	Output is correct
61	Correct	139 ms	392020 KB	Output is correct
62	Correct	144 ms	392112 KB	Output is correct
63	Correct	493 ms	392476 KB	Output is correct
64	Correct	1336 ms	392652 KB	Output is correct
65	Correct	609 ms	392588 KB	Output is correct
66	Correct	703 ms	392584 KB	Output is correct
67	Correct	1037 ms	392584 KB	Output is correct
68	Correct	626 ms	392584 KB	Output is correct
69	Correct	707 ms	392592 KB	Output is correct
70	Correct	936 ms	392632 KB	Output is correct
71	Execution timed out	3077 ms	392508 KB	Time limit exceeded
72	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	139 ms	392056 KB	Output is correct
2	Correct	141 ms	392080 KB	Output is correct
3	Correct	137 ms	392020 KB	Output is correct
4	Correct	138 ms	392036 KB	Output is correct
5	Correct	139 ms	391992 KB	Output is correct
6	Correct	136 ms	392044 KB	Output is correct
7	Correct	138 ms	392120 KB	Output is correct
8	Correct	145 ms	391964 KB	Output is correct
9	Correct	141 ms	392076 KB	Output is correct
10	Correct	139 ms	392044 KB	Output is correct
11	Correct	138 ms	392028 KB	Output is correct
12	Correct	147 ms	392004 KB	Output is correct
13	Correct	140 ms	392176 KB	Output is correct
14	Correct	136 ms	392008 KB	Output is correct
15	Correct	143 ms	392176 KB	Output is correct
16	Correct	143 ms	392076 KB	Output is correct
17	Correct	139 ms	392008 KB	Output is correct
18	Correct	138 ms	392020 KB	Output is correct
19	Correct	138 ms	392036 KB	Output is correct
20	Correct	157 ms	392012 KB	Output is correct
21	Correct	140 ms	391992 KB	Output is correct
22	Correct	143 ms	392016 KB	Output is correct
23	Correct	144 ms	392088 KB	Output is correct
24	Correct	140 ms	391996 KB	Output is correct
25	Correct	141 ms	391984 KB	Output is correct
26	Correct	148 ms	392064 KB	Output is correct
27	Correct	139 ms	391980 KB	Output is correct
28	Correct	141 ms	392000 KB	Output is correct
29	Correct	152 ms	392060 KB	Output is correct
30	Correct	143 ms	392004 KB	Output is correct
31	Correct	142 ms	392016 KB	Output is correct
32	Correct	138 ms	392092 KB	Output is correct
33	Correct	148 ms	392012 KB	Output is correct
34	Correct	153 ms	392012 KB	Output is correct
35	Correct	141 ms	392012 KB	Output is correct
36	Correct	142 ms	392028 KB	Output is correct
37	Correct	171 ms	391992 KB	Output is correct
38	Correct	143 ms	391988 KB	Output is correct
39	Correct	141 ms	391988 KB	Output is correct
40	Correct	144 ms	392104 KB	Output is correct
41	Correct	149 ms	392060 KB	Output is correct
42	Correct	147 ms	392056 KB	Output is correct
43	Correct	145 ms	392020 KB	Output is correct
44	Correct	140 ms	392012 KB	Output is correct
45	Correct	159 ms	392040 KB	Output is correct
46	Correct	140 ms	391988 KB	Output is correct
47	Correct	141 ms	392092 KB	Output is correct
48	Correct	140 ms	392024 KB	Output is correct
49	Correct	153 ms	392012 KB	Output is correct
50	Correct	143 ms	392136 KB	Output is correct
51	Correct	146 ms	391988 KB	Output is correct
52	Correct	150 ms	392072 KB	Output is correct
53	Correct	153 ms	391984 KB	Output is correct
54	Correct	153 ms	392012 KB	Output is correct
55	Correct	166 ms	392044 KB	Output is correct
56	Correct	142 ms	392076 KB	Output is correct
57	Correct	142 ms	392048 KB	Output is correct
58	Correct	143 ms	392100 KB	Output is correct
59	Correct	154 ms	392076 KB	Output is correct
60	Correct	159 ms	392044 KB	Output is correct
61	Correct	139 ms	392020 KB	Output is correct
62	Correct	144 ms	392112 KB	Output is correct
63	Correct	493 ms	392476 KB	Output is correct
64	Correct	1336 ms	392652 KB	Output is correct
65	Correct	609 ms	392588 KB	Output is correct
66	Correct	703 ms	392584 KB	Output is correct
67	Correct	1037 ms	392584 KB	Output is correct
68	Correct	626 ms	392584 KB	Output is correct
69	Correct	707 ms	392592 KB	Output is correct
70	Correct	936 ms	392632 KB	Output is correct
71	Execution timed out	3077 ms	392508 KB	Time limit exceeded
72	Halted	0 ms	0 KB	-

Submission #622520

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 10.0 / 10.0

Subtask #3 30.0 / 30.0

Subtask #4 0 / 25.0

Subtask #5 0 / 27.0

Subtask #1
8.0 / 8.0

Subtask #2
10.0 / 10.0

Subtask #3
30.0 / 30.0

Subtask #4
0 / 25.0

Subtask #5
0 / 27.0