Submission #575224

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
575224	2022-06-10T03:07:58 Z	8e7	Uplifting Excursion (BOI22_vault)	C++17	50 / 100	2513 ms	4308 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), ex2(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];
		
		ex2[2 * m - i] = min(a[i],(ll)2*m);

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

	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);
				}
			}
		}
	}
	ex = ex2;
	for (int i = m+1;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) {
			for (int j = maxn - 1;j >= 0;j--) {
				int val = j + p * (i-m);
				if (val >= maxn) continue;
				dp[val] = max(dp[val], dp[j] - p);
			}
		}
	}
	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	9 ms	4180 KB	Output is correct
2	Correct	7 ms	4180 KB	Output is correct
3	Correct	5 ms	4180 KB	Output is correct
4	Correct	35 ms	4180 KB	Output is correct
5	Incorrect	433 ms	4216 KB	Output isn't correct
6	Halted	0 ms	0 KB	-

Subtask #2
0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	4180 KB	Output is correct
2	Correct	7 ms	4180 KB	Output is correct
3	Correct	5 ms	4180 KB	Output is correct
4	Correct	35 ms	4180 KB	Output is correct
5	Incorrect	433 ms	4216 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	28 ms	4180 KB	Output is correct
2	Correct	143 ms	4228 KB	Output is correct
3	Correct	51 ms	4180 KB	Output is correct
4	Correct	149 ms	4180 KB	Output is correct
5	Correct	150 ms	4180 KB	Output is correct
6	Correct	129 ms	4208 KB	Output is correct
7	Correct	18 ms	4180 KB	Output is correct
8	Correct	19 ms	4308 KB	Output is correct
9	Correct	71 ms	4180 KB	Output is correct
10	Correct	98 ms	4180 KB	Output is correct

Subtask #3-2
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	28 ms	4180 KB	Output is correct
2	Correct	143 ms	4228 KB	Output is correct
3	Correct	51 ms	4180 KB	Output is correct
4	Correct	149 ms	4180 KB	Output is correct
5	Correct	150 ms	4180 KB	Output is correct
6	Correct	129 ms	4208 KB	Output is correct
7	Correct	18 ms	4180 KB	Output is correct
8	Correct	19 ms	4308 KB	Output is correct
9	Correct	71 ms	4180 KB	Output is correct
10	Correct	98 ms	4180 KB	Output is correct
11	Correct	10 ms	4180 KB	Output is correct
12	Correct	6 ms	4180 KB	Output is correct
13	Correct	5 ms	4228 KB	Output is correct
14	Correct	28 ms	4180 KB	Output is correct
15	Correct	137 ms	4212 KB	Output is correct
16	Correct	47 ms	4208 KB	Output is correct
17	Correct	150 ms	4212 KB	Output is correct
18	Correct	151 ms	4208 KB	Output is correct
19	Correct	129 ms	4180 KB	Output is correct
20	Correct	17 ms	4232 KB	Output is correct
21	Correct	23 ms	4260 KB	Output is correct
22	Correct	70 ms	4212 KB	Output is correct
23	Correct	102 ms	4180 KB	Output is correct
24	Correct	261 ms	4180 KB	Output is correct
25	Correct	114 ms	4300 KB	Output is correct
26	Correct	292 ms	4212 KB	Output is correct
27	Correct	258 ms	4180 KB	Output is correct
28	Correct	273 ms	4208 KB	Output is correct

Subtask #4-1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	28 ms	4180 KB	Output is correct
2	Correct	143 ms	4228 KB	Output is correct
3	Correct	51 ms	4180 KB	Output is correct
4	Correct	149 ms	4180 KB	Output is correct
5	Correct	150 ms	4180 KB	Output is correct
6	Correct	129 ms	4208 KB	Output is correct
7	Correct	18 ms	4180 KB	Output is correct
8	Correct	19 ms	4308 KB	Output is correct
9	Correct	71 ms	4180 KB	Output is correct
10	Correct	98 ms	4180 KB	Output is correct
11	Correct	28 ms	4180 KB	Output is correct
12	Correct	138 ms	4180 KB	Output is correct
13	Correct	42 ms	4180 KB	Output is correct
14	Correct	145 ms	4212 KB	Output is correct
15	Correct	159 ms	4216 KB	Output is correct
16	Correct	126 ms	4180 KB	Output is correct
17	Correct	17 ms	4180 KB	Output is correct
18	Correct	19 ms	4180 KB	Output is correct
19	Correct	70 ms	4212 KB	Output is correct
20	Correct	97 ms	4180 KB	Output is correct
21	Correct	15 ms	4240 KB	Output is correct
22	Correct	24 ms	4236 KB	Output is correct
23	Correct	253 ms	4180 KB	Output is correct
24	Correct	118 ms	4216 KB	Output is correct
25	Correct	250 ms	4212 KB	Output is correct
26	Correct	295 ms	4180 KB	Output is correct
27	Correct	262 ms	4216 KB	Output is correct
28	Correct	213 ms	4224 KB	Output is correct

Subtask #4-2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	4180 KB	Output is correct
2	Correct	7 ms	4180 KB	Output is correct
3	Correct	5 ms	4180 KB	Output is correct
4	Correct	35 ms	4180 KB	Output is correct
5	Incorrect	433 ms	4216 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	28 ms	4180 KB	Output is correct
2	Correct	143 ms	4228 KB	Output is correct
3	Correct	51 ms	4180 KB	Output is correct
4	Correct	149 ms	4180 KB	Output is correct
5	Correct	150 ms	4180 KB	Output is correct
6	Correct	129 ms	4208 KB	Output is correct
7	Correct	18 ms	4180 KB	Output is correct
8	Correct	19 ms	4308 KB	Output is correct
9	Correct	71 ms	4180 KB	Output is correct
10	Correct	98 ms	4180 KB	Output is correct
11	Correct	28 ms	4180 KB	Output is correct
12	Correct	138 ms	4180 KB	Output is correct
13	Correct	42 ms	4180 KB	Output is correct
14	Correct	145 ms	4212 KB	Output is correct
15	Correct	159 ms	4216 KB	Output is correct
16	Correct	126 ms	4180 KB	Output is correct
17	Correct	17 ms	4180 KB	Output is correct
18	Correct	19 ms	4180 KB	Output is correct
19	Correct	70 ms	4212 KB	Output is correct
20	Correct	97 ms	4180 KB	Output is correct
21	Correct	15 ms	4240 KB	Output is correct
22	Correct	24 ms	4236 KB	Output is correct
23	Correct	253 ms	4180 KB	Output is correct
24	Correct	118 ms	4216 KB	Output is correct
25	Correct	250 ms	4212 KB	Output is correct
26	Correct	295 ms	4180 KB	Output is correct
27	Correct	262 ms	4216 KB	Output is correct
28	Correct	213 ms	4224 KB	Output is correct
29	Correct	27 ms	4228 KB	Output is correct
30	Correct	138 ms	4216 KB	Output is correct
31	Correct	41 ms	4180 KB	Output is correct
32	Correct	146 ms	4220 KB	Output is correct
33	Correct	167 ms	4208 KB	Output is correct
34	Correct	127 ms	4208 KB	Output is correct
35	Correct	17 ms	4236 KB	Output is correct
36	Correct	19 ms	4180 KB	Output is correct
37	Correct	73 ms	4216 KB	Output is correct
38	Correct	101 ms	4180 KB	Output is correct
39	Correct	15 ms	4180 KB	Output is correct
40	Correct	23 ms	4180 KB	Output is correct
41	Correct	260 ms	4212 KB	Output is correct
42	Correct	121 ms	4212 KB	Output is correct
43	Correct	248 ms	4180 KB	Output is correct
44	Correct	302 ms	4300 KB	Output is correct
45	Correct	267 ms	4216 KB	Output is correct
46	Correct	213 ms	4216 KB	Output is correct
47	Correct	17 ms	4308 KB	Output is correct
48	Correct	25 ms	4228 KB	Output is correct
49	Correct	573 ms	4212 KB	Output is correct
50	Correct	262 ms	4300 KB	Output is correct
51	Correct	603 ms	4180 KB	Output is correct
52	Correct	723 ms	4180 KB	Output is correct
53	Correct	585 ms	4224 KB	Output is correct
54	Correct	486 ms	4216 KB	Output is correct

Subtask #5-2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	4180 KB	Output is correct
2	Correct	7 ms	4180 KB	Output is correct
3	Correct	5 ms	4180 KB	Output is correct
4	Correct	35 ms	4180 KB	Output is correct
5	Incorrect	433 ms	4216 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	28 ms	4180 KB	Output is correct
2	Correct	143 ms	4228 KB	Output is correct
3	Correct	51 ms	4180 KB	Output is correct
4	Correct	149 ms	4180 KB	Output is correct
5	Correct	150 ms	4180 KB	Output is correct
6	Correct	129 ms	4208 KB	Output is correct
7	Correct	18 ms	4180 KB	Output is correct
8	Correct	19 ms	4308 KB	Output is correct
9	Correct	71 ms	4180 KB	Output is correct
10	Correct	98 ms	4180 KB	Output is correct
11	Correct	28 ms	4180 KB	Output is correct
12	Correct	138 ms	4180 KB	Output is correct
13	Correct	42 ms	4180 KB	Output is correct
14	Correct	145 ms	4212 KB	Output is correct
15	Correct	159 ms	4216 KB	Output is correct
16	Correct	126 ms	4180 KB	Output is correct
17	Correct	17 ms	4180 KB	Output is correct
18	Correct	19 ms	4180 KB	Output is correct
19	Correct	70 ms	4212 KB	Output is correct
20	Correct	97 ms	4180 KB	Output is correct
21	Correct	15 ms	4240 KB	Output is correct
22	Correct	24 ms	4236 KB	Output is correct
23	Correct	253 ms	4180 KB	Output is correct
24	Correct	118 ms	4216 KB	Output is correct
25	Correct	250 ms	4212 KB	Output is correct
26	Correct	295 ms	4180 KB	Output is correct
27	Correct	262 ms	4216 KB	Output is correct
28	Correct	213 ms	4224 KB	Output is correct
29	Correct	27 ms	4228 KB	Output is correct
30	Correct	138 ms	4216 KB	Output is correct
31	Correct	41 ms	4180 KB	Output is correct
32	Correct	146 ms	4220 KB	Output is correct
33	Correct	167 ms	4208 KB	Output is correct
34	Correct	127 ms	4208 KB	Output is correct
35	Correct	17 ms	4236 KB	Output is correct
36	Correct	19 ms	4180 KB	Output is correct
37	Correct	73 ms	4216 KB	Output is correct
38	Correct	101 ms	4180 KB	Output is correct
39	Correct	15 ms	4180 KB	Output is correct
40	Correct	23 ms	4180 KB	Output is correct
41	Correct	260 ms	4212 KB	Output is correct
42	Correct	121 ms	4212 KB	Output is correct
43	Correct	248 ms	4180 KB	Output is correct
44	Correct	302 ms	4300 KB	Output is correct
45	Correct	267 ms	4216 KB	Output is correct
46	Correct	213 ms	4216 KB	Output is correct
47	Correct	17 ms	4308 KB	Output is correct
48	Correct	25 ms	4228 KB	Output is correct
49	Correct	573 ms	4212 KB	Output is correct
50	Correct	262 ms	4300 KB	Output is correct
51	Correct	603 ms	4180 KB	Output is correct
52	Correct	723 ms	4180 KB	Output is correct
53	Correct	585 ms	4224 KB	Output is correct
54	Correct	486 ms	4216 KB	Output is correct
55	Correct	27 ms	4180 KB	Output is correct
56	Correct	135 ms	4180 KB	Output is correct
57	Correct	41 ms	4208 KB	Output is correct
58	Correct	145 ms	4208 KB	Output is correct
59	Correct	163 ms	4212 KB	Output is correct
60	Correct	128 ms	4216 KB	Output is correct
61	Correct	17 ms	4180 KB	Output is correct
62	Correct	21 ms	4180 KB	Output is correct
63	Correct	74 ms	4212 KB	Output is correct
64	Correct	101 ms	4208 KB	Output is correct
65	Correct	14 ms	4232 KB	Output is correct
66	Correct	21 ms	4232 KB	Output is correct
67	Correct	254 ms	4216 KB	Output is correct
68	Correct	116 ms	4180 KB	Output is correct
69	Correct	252 ms	4232 KB	Output is correct
70	Correct	303 ms	4180 KB	Output is correct
71	Correct	263 ms	4216 KB	Output is correct
72	Correct	216 ms	4300 KB	Output is correct
73	Correct	17 ms	4180 KB	Output is correct
74	Correct	23 ms	4180 KB	Output is correct
75	Correct	559 ms	4180 KB	Output is correct
76	Correct	256 ms	4180 KB	Output is correct
77	Correct	619 ms	4216 KB	Output is correct
78	Correct	675 ms	4260 KB	Output is correct
79	Correct	584 ms	4224 KB	Output is correct
80	Correct	512 ms	4216 KB	Output is correct
81	Correct	2242 ms	4232 KB	Output is correct
82	Correct	967 ms	4232 KB	Output is correct
83	Correct	2203 ms	4228 KB	Output is correct
84	Correct	2513 ms	4232 KB	Output is correct
85	Correct	30 ms	4236 KB	Output is correct
86	Correct	29 ms	4248 KB	Output is correct
87	Correct	1947 ms	4232 KB	Output is correct

Subtask #6-2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	4180 KB	Output is correct
2	Correct	7 ms	4180 KB	Output is correct
3	Correct	5 ms	4180 KB	Output is correct
4	Correct	35 ms	4180 KB	Output is correct
5	Incorrect	433 ms	4216 KB	Output isn't correct
6	Halted	0 ms	0 KB	-

Submission #575224

Compilation message