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답안 #677281

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
677281 2023-01-02T17:44:32 Z dsyz Solar Storm (NOI20_solarstorm) C++17
100 / 100
 640 ms 232764 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define MAXN (1000005)
vector<ll> v[MAXN];
int parent[20][MAXN]; //(2^19 + 2^18 + 2^17 ... + 2^0) = (2^20 - 1) which is > 10^6
bool visited[MAXN];
void dfs(ll x){
	visited[x] = 1;
	for(auto u : v[x]){
		if(!visited[u]){
			parent[0][u] = x;
			visited[u] = 1;
			dfs(u);
		}
	}
}
ll fp(ll x,ll k){
	for(ll i = 19;i >= 0;i--){
		if(k >= (1<<i)){
			x = parent[i][x];
			k -= (1<<i);
		}
	}
	return x;
}
int main() {
	ios_base::sync_with_stdio(false);cin.tie(0);
	ll N,S,K;
	cin>>N>>S>>K;
	ll d[N];
	ll arr[N];
	memset(d,0,sizeof(d));
	d[0] = 0;
	for(ll i = 1;i < N;i++){
		ll a;
		cin>>a;
		d[i] = d[i - 1] + a;
	}
	for(ll i = 0;i < N;i++){
		cin>>arr[i];
	}
	ll indeg[N];
	memset(indeg,0,sizeof(indeg));
	for(ll i = 0;i < N;i++){
		ll p = lower_bound(d,d + N,d[i] - K) - d - 1;
		if(p < 0 || p == i) continue;
		p = lower_bound(d,d + N,d[p] - K) - d;
		if(p < 0 || p == i) continue;
		v[p].push_back(i);
		indeg[i]++;
	}
	memset(visited,0,sizeof(visited));
	memset(parent,-1,sizeof(parent));
	for(ll i = 0;i < N;i++){
		if(indeg[i] == 0){
			visited[i] = 1;
			parent[0][i] = i;
			dfs(i);
		}
	}
	for(ll k = 1;k < 20;k++){
		for(ll i = 0;i < N;i++){
			parent[k][i] = parent[k - 1][parent[k - 1][i]];
		}
	}
	ll psum[N];
	ll cur = 0;
	for(ll i = 0;i < N;i++){
		cur += arr[i];
		psum[i] = cur;
	}
	ll ans = 0;
	pair<ll,ll> range = {-1,-1};
	for(ll r = 0;r < N;r++){
		ll l = fp(r,S - 1);
		ll s = lower_bound(d,d + N,d[l] - K) - d;
		ll e = upper_bound(d,d + N,d[r] + K) - d - 1;
		ll sum = psum[e];
		if(s >= 1) sum -= psum[s - 1];
		if(sum > ans){
			range = {s,e};
			ans = sum;
		}
	}
	vector<ll> modules;
	ll start = range.first;
	for(ll i = 0;i < S && start <= range.second;i++){
		ll modulepos = upper_bound(d,d + N,d[start] + K) - d - 1;
		modules.push_back(modulepos + 1);
		ll end = upper_bound(d,d + N,d[modulepos] + K) - d - 1;
		start = end + 1;
	}
	cout<<modules.size()<<'\n';
	for(auto u : modules){
		cout<<u<<" ";
	}
	cout<<'\n';
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 42 ms 103036 KB Output is correct
2 Correct 46 ms 103952 KB Output is correct
3 Correct 54 ms 104036 KB Output is correct
4 Correct 44 ms 103428 KB Output is correct
5 Correct 41 ms 102988 KB Output is correct
6 Correct 44 ms 103372 KB Output is correct
7 Correct 48 ms 103408 KB Output is correct
8 Correct 45 ms 103456 KB Output is correct
9 Correct 44 ms 103372 KB Output is correct
10 Correct 46 ms 103568 KB Output is correct
11 Correct 50 ms 103616 KB Output is correct
12 Correct 45 ms 103404 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 268 ms 130404 KB Output is correct
2 Correct 213 ms 125312 KB Output is correct
3 Correct 258 ms 135508 KB Output is correct
4 Correct 329 ms 143264 KB Output is correct
5 Correct 400 ms 150132 KB Output is correct
6 Correct 465 ms 165760 KB Output is correct
7 Correct 319 ms 149744 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 42 ms 103036 KB Output is correct
2 Correct 46 ms 103952 KB Output is correct
3 Correct 54 ms 104036 KB Output is correct
4 Correct 44 ms 103428 KB Output is correct
5 Correct 41 ms 102988 KB Output is correct
6 Correct 44 ms 103372 KB Output is correct
7 Correct 48 ms 103408 KB Output is correct
8 Correct 45 ms 103456 KB Output is correct
9 Correct 44 ms 103372 KB Output is correct
10 Correct 46 ms 103568 KB Output is correct
11 Correct 50 ms 103616 KB Output is correct
12 Correct 45 ms 103404 KB Output is correct
13 Correct 268 ms 130404 KB Output is correct
14 Correct 213 ms 125312 KB Output is correct
15 Correct 258 ms 135508 KB Output is correct
16 Correct 329 ms 143264 KB Output is correct
17 Correct 400 ms 150132 KB Output is correct
18 Correct 465 ms 165760 KB Output is correct
19 Correct 319 ms 149744 KB Output is correct
20 Correct 206 ms 121724 KB Output is correct
21 Correct 348 ms 171280 KB Output is correct
22 Correct 403 ms 183960 KB Output is correct
23 Correct 254 ms 128972 KB Output is correct
24 Correct 242 ms 126432 KB Output is correct
25 Correct 358 ms 138656 KB Output is correct
26 Correct 259 ms 126640 KB Output is correct
27 Correct 348 ms 137956 KB Output is correct
28 Correct 362 ms 138876 KB Output is correct
29 Correct 465 ms 149712 KB Output is correct
30 Correct 369 ms 145060 KB Output is correct
31 Correct 329 ms 153472 KB Output is correct

Subtask #4
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 454 ms 193892 KB Output is correct
2 Correct 251 ms 155284 KB Output is correct
3 Correct 274 ms 158896 KB Output is correct
4 Correct 363 ms 183632 KB Output is correct
5 Correct 365 ms 181196 KB Output is correct
6 Correct 383 ms 185972 KB Output is correct
7 Correct 541 ms 213128 KB Output is correct

Subtask #5
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 42 ms 103036 KB Output is correct
2 Correct 46 ms 103952 KB Output is correct
3 Correct 54 ms 104036 KB Output is correct
4 Correct 44 ms 103428 KB Output is correct
5 Correct 41 ms 102988 KB Output is correct
6 Correct 44 ms 103372 KB Output is correct
7 Correct 48 ms 103408 KB Output is correct
8 Correct 45 ms 103456 KB Output is correct
9 Correct 44 ms 103372 KB Output is correct
10 Correct 46 ms 103568 KB Output is correct
11 Correct 50 ms 103616 KB Output is correct
12 Correct 45 ms 103404 KB Output is correct
13 Correct 43 ms 103500 KB Output is correct
14 Correct 43 ms 103508 KB Output is correct
15 Correct 47 ms 103436 KB Output is correct
16 Correct 43 ms 103384 KB Output is correct
17 Correct 43 ms 103824 KB Output is correct
18 Correct 44 ms 104148 KB Output is correct
19 Correct 44 ms 103860 KB Output is correct
20 Correct 45 ms 103740 KB Output is correct
21 Correct 46 ms 104396 KB Output is correct
22 Correct 46 ms 104104 KB Output is correct
23 Correct 43 ms 103560 KB Output is correct
24 Correct 43 ms 103532 KB Output is correct
25 Correct 44 ms 103784 KB Output is correct
26 Correct 44 ms 104008 KB Output is correct
27 Correct 44 ms 103836 KB Output is correct
28 Correct 44 ms 103912 KB Output is correct
29 Correct 43 ms 103892 KB Output is correct
30 Correct 43 ms 103432 KB Output is correct

Subtask #6
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 42 ms 103036 KB Output is correct
2 Correct 46 ms 103952 KB Output is correct
3 Correct 54 ms 104036 KB Output is correct
4 Correct 44 ms 103428 KB Output is correct
5 Correct 41 ms 102988 KB Output is correct
6 Correct 44 ms 103372 KB Output is correct
7 Correct 48 ms 103408 KB Output is correct
8 Correct 45 ms 103456 KB Output is correct
9 Correct 44 ms 103372 KB Output is correct
10 Correct 46 ms 103568 KB Output is correct
11 Correct 50 ms 103616 KB Output is correct
12 Correct 45 ms 103404 KB Output is correct
13 Correct 268 ms 130404 KB Output is correct
14 Correct 213 ms 125312 KB Output is correct
15 Correct 258 ms 135508 KB Output is correct
16 Correct 329 ms 143264 KB Output is correct
17 Correct 400 ms 150132 KB Output is correct
18 Correct 465 ms 165760 KB Output is correct
19 Correct 319 ms 149744 KB Output is correct
20 Correct 206 ms 121724 KB Output is correct
21 Correct 348 ms 171280 KB Output is correct
22 Correct 403 ms 183960 KB Output is correct
23 Correct 254 ms 128972 KB Output is correct
24 Correct 242 ms 126432 KB Output is correct
25 Correct 358 ms 138656 KB Output is correct
26 Correct 259 ms 126640 KB Output is correct
27 Correct 348 ms 137956 KB Output is correct
28 Correct 362 ms 138876 KB Output is correct
29 Correct 465 ms 149712 KB Output is correct
30 Correct 369 ms 145060 KB Output is correct
31 Correct 329 ms 153472 KB Output is correct
32 Correct 277 ms 130556 KB Output is correct
33 Correct 295 ms 132860 KB Output is correct
34 Correct 447 ms 150008 KB Output is correct
35 Correct 288 ms 131388 KB Output is correct
36 Correct 315 ms 133664 KB Output is correct
37 Correct 367 ms 136512 KB Output is correct
38 Correct 495 ms 166108 KB Output is correct
39 Correct 396 ms 187748 KB Output is correct
40 Correct 500 ms 218264 KB Output is correct

Subtask #7
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 42 ms 103036 KB Output is correct
2 Correct 46 ms 103952 KB Output is correct
3 Correct 54 ms 104036 KB Output is correct
4 Correct 44 ms 103428 KB Output is correct
5 Correct 41 ms 102988 KB Output is correct
6 Correct 44 ms 103372 KB Output is correct
7 Correct 48 ms 103408 KB Output is correct
8 Correct 45 ms 103456 KB Output is correct
9 Correct 44 ms 103372 KB Output is correct
10 Correct 46 ms 103568 KB Output is correct
11 Correct 50 ms 103616 KB Output is correct
12 Correct 45 ms 103404 KB Output is correct
13 Correct 268 ms 130404 KB Output is correct
14 Correct 213 ms 125312 KB Output is correct
15 Correct 258 ms 135508 KB Output is correct
16 Correct 329 ms 143264 KB Output is correct
17 Correct 400 ms 150132 KB Output is correct
18 Correct 465 ms 165760 KB Output is correct
19 Correct 319 ms 149744 KB Output is correct
20 Correct 206 ms 121724 KB Output is correct
21 Correct 348 ms 171280 KB Output is correct
22 Correct 403 ms 183960 KB Output is correct
23 Correct 254 ms 128972 KB Output is correct
24 Correct 242 ms 126432 KB Output is correct
25 Correct 358 ms 138656 KB Output is correct
26 Correct 259 ms 126640 KB Output is correct
27 Correct 348 ms 137956 KB Output is correct
28 Correct 362 ms 138876 KB Output is correct
29 Correct 465 ms 149712 KB Output is correct
30 Correct 369 ms 145060 KB Output is correct
31 Correct 329 ms 153472 KB Output is correct
32 Correct 454 ms 193892 KB Output is correct
33 Correct 251 ms 155284 KB Output is correct
34 Correct 274 ms 158896 KB Output is correct
35 Correct 363 ms 183632 KB Output is correct
36 Correct 365 ms 181196 KB Output is correct
37 Correct 383 ms 185972 KB Output is correct
38 Correct 541 ms 213128 KB Output is correct
39 Correct 43 ms 103500 KB Output is correct
40 Correct 43 ms 103508 KB Output is correct
41 Correct 47 ms 103436 KB Output is correct
42 Correct 43 ms 103384 KB Output is correct
43 Correct 43 ms 103824 KB Output is correct
44 Correct 44 ms 104148 KB Output is correct
45 Correct 44 ms 103860 KB Output is correct
46 Correct 45 ms 103740 KB Output is correct
47 Correct 46 ms 104396 KB Output is correct
48 Correct 46 ms 104104 KB Output is correct
49 Correct 43 ms 103560 KB Output is correct
50 Correct 43 ms 103532 KB Output is correct
51 Correct 44 ms 103784 KB Output is correct
52 Correct 44 ms 104008 KB Output is correct
53 Correct 44 ms 103836 KB Output is correct
54 Correct 44 ms 103912 KB Output is correct
55 Correct 43 ms 103892 KB Output is correct
56 Correct 43 ms 103432 KB Output is correct
57 Correct 277 ms 130556 KB Output is correct
58 Correct 295 ms 132860 KB Output is correct
59 Correct 447 ms 150008 KB Output is correct
60 Correct 288 ms 131388 KB Output is correct
61 Correct 315 ms 133664 KB Output is correct
62 Correct 367 ms 136512 KB Output is correct
63 Correct 495 ms 166108 KB Output is correct
64 Correct 396 ms 187748 KB Output is correct
65 Correct 500 ms 218264 KB Output is correct
66 Correct 212 ms 129788 KB Output is correct
67 Correct 468 ms 203896 KB Output is correct
68 Correct 373 ms 174340 KB Output is correct
69 Correct 419 ms 194536 KB Output is correct
70 Correct 206 ms 130780 KB Output is correct
71 Correct 491 ms 166948 KB Output is correct
72 Correct 332 ms 143408 KB Output is correct
73 Correct 421 ms 156104 KB Output is correct
74 Correct 268 ms 147608 KB Output is correct
75 Correct 429 ms 197348 KB Output is correct
76 Correct 322 ms 170304 KB Output is correct
77 Correct 416 ms 152392 KB Output is correct
78 Correct 289 ms 167244 KB Output is correct
79 Correct 381 ms 186532 KB Output is correct
80 Correct 474 ms 207612 KB Output is correct
81 Correct 205 ms 129680 KB Output is correct
82 Correct 331 ms 147064 KB Output is correct
83 Correct 287 ms 135160 KB Output is correct
84 Correct 297 ms 138212 KB Output is correct
85 Correct 278 ms 135836 KB Output is correct
86 Correct 490 ms 161320 KB Output is correct
87 Correct 268 ms 144296 KB Output is correct
88 Correct 460 ms 161172 KB Output is correct
89 Correct 389 ms 186532 KB Output is correct
90 Correct 343 ms 178828 KB Output is correct
91 Correct 640 ms 232764 KB Output is correct
92 Correct 533 ms 219416 KB Output is correct
93 Correct 605 ms 226140 KB Output is correct
94 Correct 592 ms 226184 KB Output is correct
95 Correct 450 ms 160488 KB Output is correct
96 Correct 380 ms 148136 KB Output is correct
97 Correct 484 ms 165536 KB Output is correct
98 Correct 361 ms 150908 KB Output is correct
99 Correct 431 ms 188328 KB Output is correct
100 Correct 427 ms 187004 KB Output is correct