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Submission #211486

# Submission time Handle Problem Language Result Execution time Memory
211486 2020-03-20T14:03:47 Z popovicirobert Solar Storm (NOI20_solarstorm) C++14
100 / 100
 459 ms 113200 KB 
#include <bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define lsb(x) (x & (-x))

using namespace std;



int main() {
#ifdef HOME
	ifstream cin("C.in");
	ofstream cout("C.out");
#endif
	int i, n, s;
	ll k;
	ios::sync_with_stdio(false);
	cin.tie(0), cout.tie(0);

	cin >> n >> s >> k;
	vector<ll> x(n + 1), v(n + 1);
	for(i = 2; i <= n; i++) {
		int d; cin >> d;
		x[i] = x[i - 1] + d;
	}
	for(i = 1; i <= n; i++) {
		cin >> v[i];
		v[i] += v[i - 1];
	}
	vector<vector<int>> anc(20, vector<int>(n + 1));
	vector<int> nxt(n + 1);
	int a = 1, b = 1;
	for(i = 1; i <= n; i++) {
		while(a <= n && x[a] - x[i] <= k) {
			a++;
		}
		nxt[i] = a - 1;
		while(b <= n && x[b] - x[a] <= k) {
			b++;
		}
		anc[0][i] = b - 1;
	}
	for(int bit = 1; bit < 20; bit++) {
		for(i = 1; i <= n; i++) {
			anc[bit][i] = anc[bit - 1][anc[bit - 1][i]];
		}
	}
	x[0] = 1e18;
	int id, l = 1;
	ll ans = 0;
	for(i = 1; i <= n; i++) {
		while(x[i] - x[l] > k) {
			l++;
		}
		int r = i;
		for(int bit = 19; bit >= 0; bit--) {
			if((s - 1) & (1 << bit)) {
				r = anc[bit][r];
			}
		}
		r = nxt[r];
		//cerr << i << " " << l << " " << r << "\n";
		if(ans < v[r] - v[l - 1]) {
			ans = v[r] - v[l - 1];
			id = i;
		}
	}
	vector<int> sol;
	while(s > 0 && id != 0) {
		sol.push_back(id);
		id = anc[0][id];
		s--;
	}
	cout << sol.size() << "\n";
	for(auto it : sol) {
		cout << it << " ";
	}

	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 7 ms 1280 KB Output is correct
3 Correct 8 ms 1280 KB Output is correct
4 Correct 6 ms 768 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 7 ms 1152 KB Output is correct
7 Correct 7 ms 1152 KB Output is correct
8 Correct 7 ms 1280 KB Output is correct
9 Correct 6 ms 896 KB Output is correct
10 Correct 8 ms 1280 KB Output is correct
11 Correct 8 ms 1280 KB Output is correct
12 Correct 6 ms 768 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 248 ms 84420 KB Output is correct
2 Correct 162 ms 53752 KB Output is correct
3 Correct 162 ms 57592 KB Output is correct
4 Correct 177 ms 62780 KB Output is correct
5 Correct 207 ms 73488 KB Output is correct
6 Correct 276 ms 97984 KB Output is correct
7 Correct 183 ms 64760 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 7 ms 1280 KB Output is correct
3 Correct 8 ms 1280 KB Output is correct
4 Correct 6 ms 768 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 7 ms 1152 KB Output is correct
7 Correct 7 ms 1152 KB Output is correct
8 Correct 7 ms 1280 KB Output is correct
9 Correct 6 ms 896 KB Output is correct
10 Correct 8 ms 1280 KB Output is correct
11 Correct 8 ms 1280 KB Output is correct
12 Correct 6 ms 768 KB Output is correct
13 Correct 248 ms 84420 KB Output is correct
14 Correct 162 ms 53752 KB Output is correct
15 Correct 162 ms 57592 KB Output is correct
16 Correct 177 ms 62780 KB Output is correct
17 Correct 207 ms 73488 KB Output is correct
18 Correct 276 ms 97984 KB Output is correct
19 Correct 183 ms 64760 KB Output is correct
20 Correct 193 ms 53672 KB Output is correct
21 Correct 228 ms 65784 KB Output is correct
22 Correct 261 ms 77944 KB Output is correct
23 Correct 246 ms 80256 KB Output is correct
24 Correct 269 ms 72504 KB Output is correct
25 Correct 257 ms 72628 KB Output is correct
26 Correct 203 ms 54168 KB Output is correct
27 Correct 253 ms 69428 KB Output is correct
28 Correct 261 ms 68688 KB Output is correct
29 Correct 328 ms 89244 KB Output is correct
30 Correct 277 ms 72992 KB Output is correct
31 Correct 235 ms 64136 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 283 ms 89296 KB Output is correct
2 Correct 139 ms 50116 KB Output is correct
3 Correct 144 ms 53548 KB Output is correct
4 Correct 230 ms 77432 KB Output is correct
5 Correct 206 ms 75128 KB Output is correct
6 Correct 226 ms 79520 KB Output is correct
7 Correct 378 ms 106032 KB Output is correct

Subtask #5
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 7 ms 1280 KB Output is correct
3 Correct 8 ms 1280 KB Output is correct
4 Correct 6 ms 768 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 7 ms 1152 KB Output is correct
7 Correct 7 ms 1152 KB Output is correct
8 Correct 7 ms 1280 KB Output is correct
9 Correct 6 ms 896 KB Output is correct
10 Correct 8 ms 1280 KB Output is correct
11 Correct 8 ms 1280 KB Output is correct
12 Correct 6 ms 768 KB Output is correct
13 Correct 8 ms 1280 KB Output is correct
14 Correct 7 ms 1152 KB Output is correct
15 Correct 7 ms 1152 KB Output is correct
16 Correct 6 ms 896 KB Output is correct
17 Correct 7 ms 1024 KB Output is correct
18 Correct 7 ms 1280 KB Output is correct
19 Correct 7 ms 1152 KB Output is correct
20 Correct 7 ms 1024 KB Output is correct
21 Correct 9 ms 1408 KB Output is correct
22 Correct 8 ms 1280 KB Output is correct
23 Correct 8 ms 1280 KB Output is correct
24 Correct 8 ms 1280 KB Output is correct
25 Correct 8 ms 1280 KB Output is correct
26 Correct 7 ms 1280 KB Output is correct
27 Correct 7 ms 1024 KB Output is correct
28 Correct 7 ms 1024 KB Output is correct
29 Correct 7 ms 1024 KB Output is correct
30 Correct 7 ms 1280 KB Output is correct

Subtask #6
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 7 ms 1280 KB Output is correct
3 Correct 8 ms 1280 KB Output is correct
4 Correct 6 ms 768 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 7 ms 1152 KB Output is correct
7 Correct 7 ms 1152 KB Output is correct
8 Correct 7 ms 1280 KB Output is correct
9 Correct 6 ms 896 KB Output is correct
10 Correct 8 ms 1280 KB Output is correct
11 Correct 8 ms 1280 KB Output is correct
12 Correct 6 ms 768 KB Output is correct
13 Correct 248 ms 84420 KB Output is correct
14 Correct 162 ms 53752 KB Output is correct
15 Correct 162 ms 57592 KB Output is correct
16 Correct 177 ms 62780 KB Output is correct
17 Correct 207 ms 73488 KB Output is correct
18 Correct 276 ms 97984 KB Output is correct
19 Correct 183 ms 64760 KB Output is correct
20 Correct 193 ms 53672 KB Output is correct
21 Correct 228 ms 65784 KB Output is correct
22 Correct 261 ms 77944 KB Output is correct
23 Correct 246 ms 80256 KB Output is correct
24 Correct 269 ms 72504 KB Output is correct
25 Correct 257 ms 72628 KB Output is correct
26 Correct 203 ms 54168 KB Output is correct
27 Correct 253 ms 69428 KB Output is correct
28 Correct 261 ms 68688 KB Output is correct
29 Correct 328 ms 89244 KB Output is correct
30 Correct 277 ms 72992 KB Output is correct
31 Correct 235 ms 64136 KB Output is correct
32 Correct 276 ms 85624 KB Output is correct
33 Correct 230 ms 65656 KB Output is correct
34 Correct 323 ms 90232 KB Output is correct
35 Correct 199 ms 54392 KB Output is correct
36 Correct 205 ms 58104 KB Output is correct
37 Correct 231 ms 64132 KB Output is correct
38 Correct 349 ms 97400 KB Output is correct
39 Correct 251 ms 73208 KB Output is correct
40 Correct 339 ms 98300 KB Output is correct

Subtask #7
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 7 ms 1280 KB Output is correct
3 Correct 8 ms 1280 KB Output is correct
4 Correct 6 ms 768 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 7 ms 1152 KB Output is correct
7 Correct 7 ms 1152 KB Output is correct
8 Correct 7 ms 1280 KB Output is correct
9 Correct 6 ms 896 KB Output is correct
10 Correct 8 ms 1280 KB Output is correct
11 Correct 8 ms 1280 KB Output is correct
12 Correct 6 ms 768 KB Output is correct
13 Correct 248 ms 84420 KB Output is correct
14 Correct 162 ms 53752 KB Output is correct
15 Correct 162 ms 57592 KB Output is correct
16 Correct 177 ms 62780 KB Output is correct
17 Correct 207 ms 73488 KB Output is correct
18 Correct 276 ms 97984 KB Output is correct
19 Correct 183 ms 64760 KB Output is correct
20 Correct 193 ms 53672 KB Output is correct
21 Correct 228 ms 65784 KB Output is correct
22 Correct 261 ms 77944 KB Output is correct
23 Correct 246 ms 80256 KB Output is correct
24 Correct 269 ms 72504 KB Output is correct
25 Correct 257 ms 72628 KB Output is correct
26 Correct 203 ms 54168 KB Output is correct
27 Correct 253 ms 69428 KB Output is correct
28 Correct 261 ms 68688 KB Output is correct
29 Correct 328 ms 89244 KB Output is correct
30 Correct 277 ms 72992 KB Output is correct
31 Correct 235 ms 64136 KB Output is correct
32 Correct 283 ms 89296 KB Output is correct
33 Correct 139 ms 50116 KB Output is correct
34 Correct 144 ms 53548 KB Output is correct
35 Correct 230 ms 77432 KB Output is correct
36 Correct 206 ms 75128 KB Output is correct
37 Correct 226 ms 79520 KB Output is correct
38 Correct 378 ms 106032 KB Output is correct
39 Correct 8 ms 1280 KB Output is correct
40 Correct 7 ms 1152 KB Output is correct
41 Correct 7 ms 1152 KB Output is correct
42 Correct 6 ms 896 KB Output is correct
43 Correct 7 ms 1024 KB Output is correct
44 Correct 7 ms 1280 KB Output is correct
45 Correct 7 ms 1152 KB Output is correct
46 Correct 7 ms 1024 KB Output is correct
47 Correct 9 ms 1408 KB Output is correct
48 Correct 8 ms 1280 KB Output is correct
49 Correct 8 ms 1280 KB Output is correct
50 Correct 8 ms 1280 KB Output is correct
51 Correct 8 ms 1280 KB Output is correct
52 Correct 7 ms 1280 KB Output is correct
53 Correct 7 ms 1024 KB Output is correct
54 Correct 7 ms 1024 KB Output is correct
55 Correct 7 ms 1024 KB Output is correct
56 Correct 7 ms 1280 KB Output is correct
57 Correct 276 ms 85624 KB Output is correct
58 Correct 230 ms 65656 KB Output is correct
59 Correct 323 ms 90232 KB Output is correct
60 Correct 199 ms 54392 KB Output is correct
61 Correct 205 ms 58104 KB Output is correct
62 Correct 231 ms 64132 KB Output is correct
63 Correct 349 ms 97400 KB Output is correct
64 Correct 251 ms 73208 KB Output is correct
65 Correct 339 ms 98300 KB Output is correct
66 Correct 284 ms 69136 KB Output is correct
67 Correct 336 ms 87168 KB Output is correct
68 Correct 239 ms 63648 KB Output is correct
69 Correct 277 ms 78672 KB Output is correct
70 Correct 209 ms 61308 KB Output is correct
71 Correct 363 ms 97528 KB Output is correct
72 Correct 252 ms 61688 KB Output is correct
73 Correct 298 ms 80764 KB Output is correct
74 Correct 180 ms 50352 KB Output is correct
75 Correct 280 ms 82844 KB Output is correct
76 Correct 199 ms 57736 KB Output is correct
77 Correct 303 ms 79100 KB Output is correct
78 Correct 196 ms 54904 KB Output is correct
79 Correct 235 ms 71292 KB Output is correct
80 Correct 298 ms 89120 KB Output is correct
81 Correct 198 ms 58744 KB Output is correct
82 Correct 264 ms 74364 KB Output is correct
83 Correct 182 ms 49612 KB Output is correct
84 Correct 200 ms 53796 KB Output is correct
85 Correct 182 ms 50348 KB Output is correct
86 Correct 316 ms 88824 KB Output is correct
87 Correct 191 ms 50596 KB Output is correct
88 Correct 407 ms 99880 KB Output is correct
89 Correct 242 ms 72056 KB Output is correct
90 Correct 216 ms 65144 KB Output is correct
91 Correct 459 ms 113200 KB Output is correct
92 Correct 351 ms 99508 KB Output is correct
93 Correct 445 ms 106036 KB Output is correct
94 Correct 444 ms 106160 KB Output is correct
95 Correct 380 ms 93656 KB Output is correct
96 Correct 306 ms 80200 KB Output is correct
97 Correct 374 ms 100104 KB Output is correct
98 Correct 289 ms 67672 KB Output is correct
99 Correct 280 ms 77492 KB Output is correct
100 Correct 278 ms 74892 KB Output is correct