oj.uz

Submission #832637

# Submission time Handle Problem Language Result Execution time Memory
832637 2023-08-21T12:51:38 Z NK_ Solar Storm (NOI20_solarstorm) C++17
100 / 100
 668 ms 177364 KB 
// Success consists of going from failure to failure without loss of enthusiasm
#include <bits/stdc++.h>
 
using namespace std;
 
#define nl '\n'
#define pb push_back
#define pf push_front
 
#define mp make_pair
#define f first
#define s second
#define sz(x) int(x.size())
 
template<class T> using V = vector<T>;
using pi = pair<int, int>;
using vi = V<int>;
using vpi = V<pi>;
 
using ll = long long;
using pl = pair<ll, ll>;
using vpl = V<pl>;
using vl = V<ll>;
 
using db = long double;
 
template<class T> using pq = priority_queue<T, V<T>, greater<T>>;
 
const int MOD = 1e9 + 7;
const ll INFL = ll(1e17);
const int LG = 20;

int main() {
	cin.tie(0)->sync_with_stdio(0);
  	
	int N, S; ll K; cin >> N >> S >> K;

	vl A(N); for(int i = 1; i < N; i++) {
		cin >> A[i]; A[i] += A[i-1];
	}

	vl X(N); for(auto& x : X) cin >> x;

	vl P = {0}; for(auto& x : X) P.pb(P.back() + x);

	auto query = [&](int l, int r) {
		return P[r + 1] - P[l];
	};


	vpi nxt(N+1);
	for(int i = 0; i < N; i++) {
		int j = (--upper_bound(begin(A), end(A), A[i] + K)) - begin(A);
		int k = (--upper_bound(begin(A), end(A), A[j] + K)) - begin(A);

		nxt[i] = mp(k + 1, j); // first not chosen is k + 1, placed the shield on j
	}
	nxt[N] = mp(N, -1);

	V<vi> up(N+1, vi(LG));
	for(int i = N; i >= 0; i--) {
		up[i][0] = nxt[i].f;
		for(int x = 1; x < LG; x++) up[i][x] = up[up[i][x-1]][x-1];
	}

	auto jmp = [&](int u, int d) {
		for(int i = 0; i < LG; i++) if ((d >> i) & 1) u = up[u][i];
		return u;
	};


	ll ans = -1, best = -1;
	for(int l = 0; l < N; l++) {
		int r = jmp(l, S) - 1;
		ll res = query(l, r);
		if (ans < res) ans = res, best = l;
	}

	vi pos;
	while(S--) {
		auto [nbest, loc] = nxt[best];
		if (loc != -1) pos.pb(loc + 1); 
		best = nbest;
	}

	cout << sz(pos) << nl;
	for(auto& x : pos) cout << x << " ";
	cout << nl;

    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 4 ms 1620 KB Output is correct
3 Correct 4 ms 1748 KB Output is correct
4 Correct 2 ms 852 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 3 ms 1492 KB Output is correct
7 Correct 3 ms 1620 KB Output is correct
8 Correct 3 ms 1748 KB Output is correct
9 Correct 3 ms 1236 KB Output is correct
10 Correct 4 ms 1748 KB Output is correct
11 Correct 4 ms 1748 KB Output is correct
12 Correct 2 ms 852 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 253 ms 127864 KB Output is correct
2 Correct 178 ms 81364 KB Output is correct
3 Correct 207 ms 87196 KB Output is correct
4 Correct 249 ms 95004 KB Output is correct
5 Correct 316 ms 111440 KB Output is correct
6 Correct 462 ms 148536 KB Output is correct
7 Correct 283 ms 98148 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 4 ms 1620 KB Output is correct
3 Correct 4 ms 1748 KB Output is correct
4 Correct 2 ms 852 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 3 ms 1492 KB Output is correct
7 Correct 3 ms 1620 KB Output is correct
8 Correct 3 ms 1748 KB Output is correct
9 Correct 3 ms 1236 KB Output is correct
10 Correct 4 ms 1748 KB Output is correct
11 Correct 4 ms 1748 KB Output is correct
12 Correct 2 ms 852 KB Output is correct
13 Correct 253 ms 127864 KB Output is correct
14 Correct 178 ms 81364 KB Output is correct
15 Correct 207 ms 87196 KB Output is correct
16 Correct 249 ms 95004 KB Output is correct
17 Correct 316 ms 111440 KB Output is correct
18 Correct 462 ms 148536 KB Output is correct
19 Correct 283 ms 98148 KB Output is correct
20 Correct 185 ms 81136 KB Output is correct
21 Correct 292 ms 108516 KB Output is correct
22 Correct 358 ms 128840 KB Output is correct
23 Correct 256 ms 130308 KB Output is correct
24 Correct 236 ms 119988 KB Output is correct
25 Correct 317 ms 119880 KB Output is correct
26 Correct 201 ms 89264 KB Output is correct
27 Correct 290 ms 114720 KB Output is correct
28 Correct 296 ms 113508 KB Output is correct
29 Correct 369 ms 147376 KB Output is correct
30 Correct 352 ms 120696 KB Output is correct
31 Correct 307 ms 105904 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 448 ms 129664 KB Output is correct
2 Correct 213 ms 75660 KB Output is correct
3 Correct 231 ms 81116 KB Output is correct
4 Correct 337 ms 117392 KB Output is correct
5 Correct 329 ms 113856 KB Output is correct
6 Correct 346 ms 120624 KB Output is correct
7 Correct 539 ms 156740 KB Output is correct

Subtask #5
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 4 ms 1620 KB Output is correct
3 Correct 4 ms 1748 KB Output is correct
4 Correct 2 ms 852 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 3 ms 1492 KB Output is correct
7 Correct 3 ms 1620 KB Output is correct
8 Correct 3 ms 1748 KB Output is correct
9 Correct 3 ms 1236 KB Output is correct
10 Correct 4 ms 1748 KB Output is correct
11 Correct 4 ms 1748 KB Output is correct
12 Correct 2 ms 852 KB Output is correct
13 Correct 3 ms 1748 KB Output is correct
14 Correct 3 ms 1620 KB Output is correct
15 Correct 3 ms 1492 KB Output is correct
16 Correct 3 ms 1108 KB Output is correct
17 Correct 3 ms 1492 KB Output is correct
18 Correct 6 ms 1872 KB Output is correct
19 Correct 3 ms 1492 KB Output is correct
20 Correct 4 ms 1364 KB Output is correct
21 Correct 5 ms 2072 KB Output is correct
22 Correct 4 ms 1864 KB Output is correct
23 Correct 4 ms 1876 KB Output is correct
24 Correct 5 ms 1620 KB Output is correct
25 Correct 6 ms 1748 KB Output is correct
26 Correct 4 ms 1748 KB Output is correct
27 Correct 3 ms 1364 KB Output is correct
28 Correct 3 ms 1492 KB Output is correct
29 Correct 3 ms 1480 KB Output is correct
30 Correct 3 ms 1748 KB Output is correct

Subtask #6
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 4 ms 1620 KB Output is correct
3 Correct 4 ms 1748 KB Output is correct
4 Correct 2 ms 852 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 3 ms 1492 KB Output is correct
7 Correct 3 ms 1620 KB Output is correct
8 Correct 3 ms 1748 KB Output is correct
9 Correct 3 ms 1236 KB Output is correct
10 Correct 4 ms 1748 KB Output is correct
11 Correct 4 ms 1748 KB Output is correct
12 Correct 2 ms 852 KB Output is correct
13 Correct 253 ms 127864 KB Output is correct
14 Correct 178 ms 81364 KB Output is correct
15 Correct 207 ms 87196 KB Output is correct
16 Correct 249 ms 95004 KB Output is correct
17 Correct 316 ms 111440 KB Output is correct
18 Correct 462 ms 148536 KB Output is correct
19 Correct 283 ms 98148 KB Output is correct
20 Correct 185 ms 81136 KB Output is correct
21 Correct 292 ms 108516 KB Output is correct
22 Correct 358 ms 128840 KB Output is correct
23 Correct 256 ms 130308 KB Output is correct
24 Correct 236 ms 119988 KB Output is correct
25 Correct 317 ms 119880 KB Output is correct
26 Correct 201 ms 89264 KB Output is correct
27 Correct 290 ms 114720 KB Output is correct
28 Correct 296 ms 113508 KB Output is correct
29 Correct 369 ms 147376 KB Output is correct
30 Correct 352 ms 120696 KB Output is correct
31 Correct 307 ms 105904 KB Output is correct
32 Correct 301 ms 141592 KB Output is correct
33 Correct 260 ms 108380 KB Output is correct
34 Correct 410 ms 149064 KB Output is correct
35 Correct 239 ms 89784 KB Output is correct
36 Correct 245 ms 96028 KB Output is correct
37 Correct 274 ms 106032 KB Output is correct
38 Correct 492 ms 161196 KB Output is correct
39 Correct 313 ms 121072 KB Output is correct
40 Correct 458 ms 162472 KB Output is correct

Subtask #7
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 4 ms 1620 KB Output is correct
3 Correct 4 ms 1748 KB Output is correct
4 Correct 2 ms 852 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 3 ms 1492 KB Output is correct
7 Correct 3 ms 1620 KB Output is correct
8 Correct 3 ms 1748 KB Output is correct
9 Correct 3 ms 1236 KB Output is correct
10 Correct 4 ms 1748 KB Output is correct
11 Correct 4 ms 1748 KB Output is correct
12 Correct 2 ms 852 KB Output is correct
13 Correct 253 ms 127864 KB Output is correct
14 Correct 178 ms 81364 KB Output is correct
15 Correct 207 ms 87196 KB Output is correct
16 Correct 249 ms 95004 KB Output is correct
17 Correct 316 ms 111440 KB Output is correct
18 Correct 462 ms 148536 KB Output is correct
19 Correct 283 ms 98148 KB Output is correct
20 Correct 185 ms 81136 KB Output is correct
21 Correct 292 ms 108516 KB Output is correct
22 Correct 358 ms 128840 KB Output is correct
23 Correct 256 ms 130308 KB Output is correct
24 Correct 236 ms 119988 KB Output is correct
25 Correct 317 ms 119880 KB Output is correct
26 Correct 201 ms 89264 KB Output is correct
27 Correct 290 ms 114720 KB Output is correct
28 Correct 296 ms 113508 KB Output is correct
29 Correct 369 ms 147376 KB Output is correct
30 Correct 352 ms 120696 KB Output is correct
31 Correct 307 ms 105904 KB Output is correct
32 Correct 448 ms 129664 KB Output is correct
33 Correct 213 ms 75660 KB Output is correct
34 Correct 231 ms 81116 KB Output is correct
35 Correct 337 ms 117392 KB Output is correct
36 Correct 329 ms 113856 KB Output is correct
37 Correct 346 ms 120624 KB Output is correct
38 Correct 539 ms 156740 KB Output is correct
39 Correct 3 ms 1748 KB Output is correct
40 Correct 3 ms 1620 KB Output is correct
41 Correct 3 ms 1492 KB Output is correct
42 Correct 3 ms 1108 KB Output is correct
43 Correct 3 ms 1492 KB Output is correct
44 Correct 6 ms 1872 KB Output is correct
45 Correct 3 ms 1492 KB Output is correct
46 Correct 4 ms 1364 KB Output is correct
47 Correct 5 ms 2072 KB Output is correct
48 Correct 4 ms 1864 KB Output is correct
49 Correct 4 ms 1876 KB Output is correct
50 Correct 5 ms 1620 KB Output is correct
51 Correct 6 ms 1748 KB Output is correct
52 Correct 4 ms 1748 KB Output is correct
53 Correct 3 ms 1364 KB Output is correct
54 Correct 3 ms 1492 KB Output is correct
55 Correct 3 ms 1480 KB Output is correct
56 Correct 3 ms 1748 KB Output is correct
57 Correct 301 ms 141592 KB Output is correct
58 Correct 260 ms 108380 KB Output is correct
59 Correct 410 ms 149064 KB Output is correct
60 Correct 239 ms 89784 KB Output is correct
61 Correct 245 ms 96028 KB Output is correct
62 Correct 274 ms 106032 KB Output is correct
63 Correct 492 ms 161196 KB Output is correct
64 Correct 313 ms 121072 KB Output is correct
65 Correct 458 ms 162472 KB Output is correct
66 Correct 211 ms 97172 KB Output is correct
67 Correct 406 ms 139616 KB Output is correct
68 Correct 287 ms 98740 KB Output is correct
69 Correct 372 ms 127604 KB Output is correct
70 Correct 223 ms 100988 KB Output is correct
71 Correct 509 ms 161356 KB Output is correct
72 Correct 262 ms 101812 KB Output is correct
73 Correct 340 ms 133344 KB Output is correct
74 Correct 244 ms 83004 KB Output is correct
75 Correct 407 ms 136860 KB Output is correct
76 Correct 250 ms 95272 KB Output is correct
77 Correct 358 ms 127640 KB Output is correct
78 Correct 237 ms 90812 KB Output is correct
79 Correct 324 ms 117824 KB Output is correct
80 Correct 433 ms 147332 KB Output is correct
81 Correct 202 ms 97072 KB Output is correct
82 Correct 312 ms 122912 KB Output is correct
83 Correct 209 ms 81796 KB Output is correct
84 Correct 219 ms 88796 KB Output is correct
85 Correct 210 ms 83024 KB Output is correct
86 Correct 356 ms 146760 KB Output is correct
87 Correct 207 ms 83388 KB Output is correct
88 Correct 437 ms 147008 KB Output is correct
89 Correct 321 ms 118924 KB Output is correct
90 Correct 281 ms 107716 KB Output is correct
91 Correct 521 ms 177364 KB Output is correct
92 Correct 469 ms 163672 KB Output is correct
93 Correct 564 ms 170276 KB Output is correct
94 Correct 668 ms 170304 KB Output is correct
95 Correct 419 ms 144728 KB Output is correct
96 Correct 343 ms 113776 KB Output is correct
97 Correct 445 ms 155248 KB Output is correct
98 Correct 335 ms 103580 KB Output is correct
99 Correct 338 ms 120296 KB Output is correct
100 Correct 346 ms 116552 KB Output is correct