Submission #575218

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
575218	2022-06-10T02:35:38 Z	8e7	Uplifting Excursion (BOI22_vault)	C++17	50 / 100	2429 ms	4300 KB

vault

//Challenge: Accepted
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
#ifdef zisk
void debug(){cout << endl;}
template<class T, class ... U> void debug(T a, U ... b){cout << a << " ", debug(b...);}
template<class T> void pary(T l, T r) {
	while (l != r) cout << *l << " ", l++;
	cout << endl;
}
#else
#define debug(...) 0
#define pary(...) 0
#endif
#define ll long long
#define maxn 1000005
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
const int inf = 1<<30;
int dp[maxn];
int main() {
	io
	int m;
	ll L;
	cin >> m >> L;
	vector<ll> a(2*m+1), ex(2*m+1);	
	ll mins = -maxn / 2, ans = 0;
	ll sum = 0;
	for (int i = 0;i < 2*m+1;i++) {
		cin >> a[i];
		if (i == m) ans += a[i], a[i] = 0;
		sum += a[i] * (i - m);	
	}
	if (sum < L) {
		for (int i = 0;i < m;i++) swap(a[i], a[2*m - i]);
		L = -L;
	}
	for (int i = 0;i < m;i++) {
		L -= a[i] * (i - m);
		ans += a[i];
		a[i] = 0;
	}
	for (int i = m+1;i < 2*m+1;i++) {
		ll p = min(a[i], L / (i-m));
		ans += p;
		L -= p * (i-m);
		a[i] -= p;

		ex[i] = min(a[i], (ll)m);
		ex[2 * m - i] = min(p,(ll)m);
	}
	for (int i = 0;i < maxn;i++) dp[i] = -inf;	

	dp[-mins] = 0;
	for (int i = 0;i < 2*m+1;i++) {
		ll cnt = 1;
		vector<int> num;
		while (ex[i] >= cnt) {
			num.push_back(cnt);
			ex[i] -= cnt;
			cnt <<= 1;
		}
		if (ex[i] > 0) num.push_back(ex[i]);
		for (int p:num) {
			if (i - m > 0) {
				for (int j = maxn - 1;j >= 0;j--) {
					int val = j + p * (i-m);
					if (val >= maxn) continue;
					int del = i < m ? -p : p;
					dp[val] = max(dp[val], dp[j] + del);
				}
			} else {
				for (int j = 0;j < maxn;j++) {
					int val = j + p * (i-m);
					if (val < 0) continue;
					int del = i < m ? -p : p;
					dp[val] = max(dp[val], dp[j] + del);
				}
			}
		}
	}
	if (L - mins >= maxn || L - mins < 0 || dp[L - mins] < -maxn) cout << "impossible\n";
	else cout << dp[L - mins]+ans << "\n";
}

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	4180 KB	Output is correct
2	Correct	5 ms	4180 KB	Output is correct
3	Correct	4 ms	4180 KB	Output is correct
4	Correct	27 ms	4232 KB	Output is correct
5	Incorrect	218 ms	4212 KB	Output isn't correct
6	Halted	0 ms	0 KB	-

Subtask #2
0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	4180 KB	Output is correct
2	Correct	5 ms	4180 KB	Output is correct
3	Correct	4 ms	4180 KB	Output is correct
4	Correct	27 ms	4232 KB	Output is correct
5	Incorrect	218 ms	4212 KB	Output isn't correct
6	Halted	0 ms	0 KB	-

Subtask #3-1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	4180 KB	Output is correct
2	Correct	124 ms	4212 KB	Output is correct
3	Correct	38 ms	4180 KB	Output is correct
4	Correct	149 ms	4212 KB	Output is correct
5	Correct	147 ms	4208 KB	Output is correct
6	Correct	134 ms	4212 KB	Output is correct
7	Correct	15 ms	4228 KB	Output is correct
8	Correct	18 ms	4232 KB	Output is correct
9	Correct	68 ms	4212 KB	Output is correct
10	Correct	91 ms	4212 KB	Output is correct

Subtask #3-2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	4180 KB	Output is correct
2	Correct	124 ms	4212 KB	Output is correct
3	Correct	38 ms	4180 KB	Output is correct
4	Correct	149 ms	4212 KB	Output is correct
5	Correct	147 ms	4208 KB	Output is correct
6	Correct	134 ms	4212 KB	Output is correct
7	Correct	15 ms	4228 KB	Output is correct
8	Correct	18 ms	4232 KB	Output is correct
9	Correct	68 ms	4212 KB	Output is correct
10	Correct	91 ms	4212 KB	Output is correct
11	Correct	6 ms	4236 KB	Output is correct
12	Correct	5 ms	4180 KB	Output is correct
13	Correct	4 ms	4180 KB	Output is correct
14	Correct	27 ms	4228 KB	Output is correct
15	Correct	126 ms	4212 KB	Output is correct
16	Correct	39 ms	4212 KB	Output is correct
17	Correct	132 ms	4180 KB	Output is correct
18	Correct	144 ms	4208 KB	Output is correct
19	Correct	126 ms	4212 KB	Output is correct
20	Correct	16 ms	4180 KB	Output is correct
21	Correct	19 ms	4228 KB	Output is correct
22	Correct	67 ms	4212 KB	Output is correct
23	Correct	91 ms	4216 KB	Output is correct
24	Correct	127 ms	4300 KB	Output is correct
25	Correct	55 ms	4220 KB	Output is correct
26	Correct	141 ms	4180 KB	Output is correct
27	Correct	119 ms	4180 KB	Output is correct
28	Correct	115 ms	4220 KB	Output is correct

Subtask #4-1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	4180 KB	Output is correct
2	Correct	124 ms	4212 KB	Output is correct
3	Correct	38 ms	4180 KB	Output is correct
4	Correct	149 ms	4212 KB	Output is correct
5	Correct	147 ms	4208 KB	Output is correct
6	Correct	134 ms	4212 KB	Output is correct
7	Correct	15 ms	4228 KB	Output is correct
8	Correct	18 ms	4232 KB	Output is correct
9	Correct	68 ms	4212 KB	Output is correct
10	Correct	91 ms	4212 KB	Output is correct
11	Correct	28 ms	4180 KB	Output is correct
12	Correct	124 ms	4220 KB	Output is correct
13	Correct	38 ms	4180 KB	Output is correct
14	Correct	136 ms	4212 KB	Output is correct
15	Correct	142 ms	4212 KB	Output is correct
16	Correct	123 ms	4212 KB	Output is correct
17	Correct	16 ms	4180 KB	Output is correct
18	Correct	18 ms	4180 KB	Output is correct
19	Correct	68 ms	4180 KB	Output is correct
20	Correct	91 ms	4212 KB	Output is correct
21	Correct	14 ms	4180 KB	Output is correct
22	Correct	21 ms	4232 KB	Output is correct
23	Correct	246 ms	4212 KB	Output is correct
24	Correct	113 ms	4180 KB	Output is correct
25	Correct	238 ms	4216 KB	Output is correct
26	Correct	281 ms	4224 KB	Output is correct
27	Correct	267 ms	4180 KB	Output is correct
28	Correct	189 ms	4180 KB	Output is correct

Subtask #4-2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	4180 KB	Output is correct
2	Correct	5 ms	4180 KB	Output is correct
3	Correct	4 ms	4180 KB	Output is correct
4	Correct	27 ms	4232 KB	Output is correct
5	Incorrect	218 ms	4212 KB	Output isn't correct
6	Halted	0 ms	0 KB	-

Subtask #5-1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	4180 KB	Output is correct
2	Correct	124 ms	4212 KB	Output is correct
3	Correct	38 ms	4180 KB	Output is correct
4	Correct	149 ms	4212 KB	Output is correct
5	Correct	147 ms	4208 KB	Output is correct
6	Correct	134 ms	4212 KB	Output is correct
7	Correct	15 ms	4228 KB	Output is correct
8	Correct	18 ms	4232 KB	Output is correct
9	Correct	68 ms	4212 KB	Output is correct
10	Correct	91 ms	4212 KB	Output is correct
11	Correct	28 ms	4180 KB	Output is correct
12	Correct	124 ms	4220 KB	Output is correct
13	Correct	38 ms	4180 KB	Output is correct
14	Correct	136 ms	4212 KB	Output is correct
15	Correct	142 ms	4212 KB	Output is correct
16	Correct	123 ms	4212 KB	Output is correct
17	Correct	16 ms	4180 KB	Output is correct
18	Correct	18 ms	4180 KB	Output is correct
19	Correct	68 ms	4180 KB	Output is correct
20	Correct	91 ms	4212 KB	Output is correct
21	Correct	14 ms	4180 KB	Output is correct
22	Correct	21 ms	4232 KB	Output is correct
23	Correct	246 ms	4212 KB	Output is correct
24	Correct	113 ms	4180 KB	Output is correct
25	Correct	238 ms	4216 KB	Output is correct
26	Correct	281 ms	4224 KB	Output is correct
27	Correct	267 ms	4180 KB	Output is correct
28	Correct	189 ms	4180 KB	Output is correct
29	Correct	27 ms	4232 KB	Output is correct
30	Correct	130 ms	4212 KB	Output is correct
31	Correct	38 ms	4212 KB	Output is correct
32	Correct	146 ms	4212 KB	Output is correct
33	Correct	145 ms	4208 KB	Output is correct
34	Correct	125 ms	4208 KB	Output is correct
35	Correct	15 ms	4228 KB	Output is correct
36	Correct	19 ms	4232 KB	Output is correct
37	Correct	70 ms	4212 KB	Output is correct
38	Correct	105 ms	4224 KB	Output is correct
39	Correct	15 ms	4180 KB	Output is correct
40	Correct	21 ms	4180 KB	Output is correct
41	Correct	238 ms	4208 KB	Output is correct
42	Correct	109 ms	4212 KB	Output is correct
43	Correct	233 ms	4180 KB	Output is correct
44	Correct	283 ms	4208 KB	Output is correct
45	Correct	251 ms	4216 KB	Output is correct
46	Correct	185 ms	4216 KB	Output is correct
47	Correct	17 ms	4180 KB	Output is correct
48	Correct	25 ms	4180 KB	Output is correct
49	Correct	535 ms	4216 KB	Output is correct
50	Correct	229 ms	4180 KB	Output is correct
51	Correct	578 ms	4216 KB	Output is correct
52	Correct	642 ms	4224 KB	Output is correct
53	Correct	549 ms	4216 KB	Output is correct
54	Correct	477 ms	4216 KB	Output is correct

Subtask #5-2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	4180 KB	Output is correct
2	Correct	5 ms	4180 KB	Output is correct
3	Correct	4 ms	4180 KB	Output is correct
4	Correct	27 ms	4232 KB	Output is correct
5	Incorrect	218 ms	4212 KB	Output isn't correct
6	Halted	0 ms	0 KB	-

Subtask #6-1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	27 ms	4180 KB	Output is correct
2	Correct	124 ms	4212 KB	Output is correct
3	Correct	38 ms	4180 KB	Output is correct
4	Correct	149 ms	4212 KB	Output is correct
5	Correct	147 ms	4208 KB	Output is correct
6	Correct	134 ms	4212 KB	Output is correct
7	Correct	15 ms	4228 KB	Output is correct
8	Correct	18 ms	4232 KB	Output is correct
9	Correct	68 ms	4212 KB	Output is correct
10	Correct	91 ms	4212 KB	Output is correct
11	Correct	28 ms	4180 KB	Output is correct
12	Correct	124 ms	4220 KB	Output is correct
13	Correct	38 ms	4180 KB	Output is correct
14	Correct	136 ms	4212 KB	Output is correct
15	Correct	142 ms	4212 KB	Output is correct
16	Correct	123 ms	4212 KB	Output is correct
17	Correct	16 ms	4180 KB	Output is correct
18	Correct	18 ms	4180 KB	Output is correct
19	Correct	68 ms	4180 KB	Output is correct
20	Correct	91 ms	4212 KB	Output is correct
21	Correct	14 ms	4180 KB	Output is correct
22	Correct	21 ms	4232 KB	Output is correct
23	Correct	246 ms	4212 KB	Output is correct
24	Correct	113 ms	4180 KB	Output is correct
25	Correct	238 ms	4216 KB	Output is correct
26	Correct	281 ms	4224 KB	Output is correct
27	Correct	267 ms	4180 KB	Output is correct
28	Correct	189 ms	4180 KB	Output is correct
29	Correct	27 ms	4232 KB	Output is correct
30	Correct	130 ms	4212 KB	Output is correct
31	Correct	38 ms	4212 KB	Output is correct
32	Correct	146 ms	4212 KB	Output is correct
33	Correct	145 ms	4208 KB	Output is correct
34	Correct	125 ms	4208 KB	Output is correct
35	Correct	15 ms	4228 KB	Output is correct
36	Correct	19 ms	4232 KB	Output is correct
37	Correct	70 ms	4212 KB	Output is correct
38	Correct	105 ms	4224 KB	Output is correct
39	Correct	15 ms	4180 KB	Output is correct
40	Correct	21 ms	4180 KB	Output is correct
41	Correct	238 ms	4208 KB	Output is correct
42	Correct	109 ms	4212 KB	Output is correct
43	Correct	233 ms	4180 KB	Output is correct
44	Correct	283 ms	4208 KB	Output is correct
45	Correct	251 ms	4216 KB	Output is correct
46	Correct	185 ms	4216 KB	Output is correct
47	Correct	17 ms	4180 KB	Output is correct
48	Correct	25 ms	4180 KB	Output is correct
49	Correct	535 ms	4216 KB	Output is correct
50	Correct	229 ms	4180 KB	Output is correct
51	Correct	578 ms	4216 KB	Output is correct
52	Correct	642 ms	4224 KB	Output is correct
53	Correct	549 ms	4216 KB	Output is correct
54	Correct	477 ms	4216 KB	Output is correct
55	Correct	27 ms	4180 KB	Output is correct
56	Correct	127 ms	4208 KB	Output is correct
57	Correct	40 ms	4232 KB	Output is correct
58	Correct	140 ms	4180 KB	Output is correct
59	Correct	141 ms	4212 KB	Output is correct
60	Correct	123 ms	4216 KB	Output is correct
61	Correct	16 ms	4236 KB	Output is correct
62	Correct	19 ms	4180 KB	Output is correct
63	Correct	68 ms	4180 KB	Output is correct
64	Correct	94 ms	4224 KB	Output is correct
65	Correct	15 ms	4232 KB	Output is correct
66	Correct	24 ms	4232 KB	Output is correct
67	Correct	238 ms	4216 KB	Output is correct
68	Correct	110 ms	4208 KB	Output is correct
69	Correct	237 ms	4300 KB	Output is correct
70	Correct	278 ms	4300 KB	Output is correct
71	Correct	251 ms	4216 KB	Output is correct
72	Correct	192 ms	4180 KB	Output is correct
73	Correct	20 ms	4180 KB	Output is correct
74	Correct	25 ms	4180 KB	Output is correct
75	Correct	533 ms	4180 KB	Output is correct
76	Correct	242 ms	4300 KB	Output is correct
77	Correct	563 ms	4180 KB	Output is correct
78	Correct	655 ms	4216 KB	Output is correct
79	Correct	556 ms	4212 KB	Output is correct
80	Correct	465 ms	4216 KB	Output is correct
81	Correct	2157 ms	4232 KB	Output is correct
82	Correct	939 ms	4220 KB	Output is correct
83	Correct	2113 ms	4224 KB	Output is correct
84	Correct	2429 ms	4228 KB	Output is correct
85	Correct	27 ms	4244 KB	Output is correct
86	Correct	29 ms	4180 KB	Output is correct
87	Correct	1859 ms	4224 KB	Output is correct

Subtask #6-2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	4180 KB	Output is correct
2	Correct	5 ms	4180 KB	Output is correct
3	Correct	4 ms	4180 KB	Output is correct
4	Correct	27 ms	4232 KB	Output is correct
5	Incorrect	218 ms	4212 KB	Output isn't correct
6	Halted	0 ms	0 KB	-

Submission #575218

Compilation message