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답안 #603278

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
603278 2022-07-23T21:06:10 Z AdamGS Feast (NOI19_feast) C++17
100 / 100
 179 ms 120688 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
struct Node {
  ll pref;
  int ind_pref;
  ll inv_pref;
  int inv_ind_pref;
  ll suf;
  int ind_suf;
  ll inv_suf;
  int inv_ind_suf;
  ll psoms;
  int indl_psoms, indr_psoms;
  ll inv_psoms;
  int inv_indl_psoms, inv_indr_psoms;
  ll sum;
  int lazy;
};
const int LIM=1<<20, INF=1e9+7;
ll T[LIM], N=1, n, k;
Node tr[2*LIM], pusty;
void inv(int v) {
  swap(tr[v].pref, tr[v].inv_pref);
  swap(tr[v].ind_pref, tr[v].inv_ind_pref);
  swap(tr[v].suf, tr[v].inv_suf);
  swap(tr[v].ind_suf, tr[v].inv_ind_suf);
  swap(tr[v].psoms, tr[v].inv_psoms);
  swap(tr[v].indl_psoms, tr[v].inv_indl_psoms);
  swap(tr[v].indr_psoms, tr[v].inv_indr_psoms);
  tr[v].sum*=-1;
  tr[v].lazy^=1;
}
void spl(int v) {
  inv(2*v);
  inv(2*v+1);
  tr[v].lazy=0;
}
void lacz(int v) {
  tr[v].pref=tr[2*v].pref; tr[v].ind_pref=tr[2*v].ind_pref;
  if(tr[2*v].sum+tr[2*v+1].pref>tr[v].pref) {
    tr[v].pref=tr[2*v].sum+tr[2*v+1].pref;
    tr[v].ind_pref=tr[2*v+1].ind_pref;
  }
  tr[v].suf=tr[2*v+1].suf; tr[v].ind_suf=tr[2*v+1].ind_suf;
  if(tr[2*v+1].sum+tr[2*v].suf>tr[v].suf) {
    tr[v].suf=tr[2*v+1].sum+tr[2*v].suf;
    tr[v].ind_suf=tr[2*v].ind_suf;
  }
  tr[v].psoms=tr[2*v].psoms; 
  tr[v].indl_psoms=tr[2*v].indl_psoms; tr[v].indr_psoms=tr[2*v].indr_psoms;
  if(tr[2*v+1].psoms>tr[v].psoms) {
    tr[v].psoms=tr[2*v+1].psoms;
    tr[v].indl_psoms=tr[2*v+1].indl_psoms; tr[v].indr_psoms=tr[2*v+1].indr_psoms;
  }
  if(tr[2*v].suf+tr[2*v+1].pref>tr[v].psoms) {
    tr[v].psoms=tr[2*v].suf+tr[2*v+1].pref;
    tr[v].indl_psoms=tr[2*v].ind_suf; tr[v].indr_psoms=tr[2*v+1].ind_pref;
  }
  tr[v].inv_pref=tr[2*v].inv_pref; tr[v].inv_ind_pref=tr[2*v].inv_ind_pref;
  if(-tr[2*v].sum+tr[2*v+1].inv_pref>tr[v].inv_pref) {
    tr[v].inv_pref=-tr[2*v].sum+tr[2*v+1].inv_pref;
    tr[v].inv_ind_pref=tr[2*v+1].inv_ind_pref;
  }
  tr[v].inv_suf=tr[2*v+1].inv_suf; tr[v].inv_ind_suf=tr[2*v+1].inv_ind_suf;
  if(-tr[2*v+1].sum+tr[2*v].inv_suf>tr[v].inv_suf) {
    tr[v].inv_suf=-tr[2*v+1].sum+tr[2*v].inv_suf;
    tr[v].inv_ind_suf=tr[2*v].inv_ind_suf;
  }
  tr[v].inv_psoms=tr[2*v].inv_psoms; 
  tr[v].inv_indl_psoms=tr[2*v].inv_indl_psoms; tr[v].inv_indr_psoms=tr[2*v].inv_indr_psoms;
  if(tr[2*v+1].inv_psoms>tr[v].inv_psoms) {
    tr[v].inv_psoms=tr[2*v+1].inv_psoms;
    tr[v].inv_indl_psoms=tr[2*v+1].inv_indl_psoms; tr[v].inv_indr_psoms=tr[2*v+1].inv_indr_psoms;
  }
  if(tr[2*v].inv_suf+tr[2*v+1].inv_pref>tr[v].inv_psoms) {
    tr[v].inv_psoms=tr[2*v].inv_suf+tr[2*v+1].inv_pref;
    tr[v].inv_indl_psoms=tr[2*v].inv_ind_suf; tr[v].inv_indr_psoms=tr[2*v+1].inv_ind_pref;
  }
  tr[v].sum=tr[2*v].sum+tr[2*v+1].sum;
}
void upd(int v, int l, int r, int a, int b) {
  if(b<l || a>r) return;
  if(a<=l && r<=b) {
    inv(v);
    return;
  }
  if(tr[v].lazy) spl(v);
  int mid=(l+r)/2;
  upd(2*v, l, mid, a, b);
  upd(2*v+1, mid+1, r, a, b);
  lacz(v);
}
ll dynamiczny_psoms(int x) {
  rep(i, 2*N) tr[i]=pusty;
  rep(i, n) tr[N+i]={T[i], i, -T[i], i, T[i], i, -T[i], i, T[i], i, i, -T[i], i, i, T[i], 0};
  for(int i=N-1; i; --i) lacz(i);
  ll ans=0;
  while(x--) {
    if(tr[1].psoms<=0) break;
    ans+=tr[1].psoms;
    upd(1, 0, N-1, tr[1].indl_psoms, tr[1].indr_psoms);
  }
  return ans;
}
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  cin >> n >> k;
  k=min(n, k);
  while(N<n) N*=2;
  rep(i, n) cin >> T[i];
  cout << dynamiczny_psoms(k) << '\n';
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 103 ms 120268 KB Output is correct
2 Correct 96 ms 120368 KB Output is correct
3 Correct 95 ms 120396 KB Output is correct
4 Correct 94 ms 120428 KB Output is correct
5 Correct 94 ms 120312 KB Output is correct
6 Correct 91 ms 120204 KB Output is correct
7 Correct 98 ms 120224 KB Output is correct
8 Correct 107 ms 120452 KB Output is correct
9 Correct 92 ms 120324 KB Output is correct
10 Correct 91 ms 120352 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 87 ms 118648 KB Output is correct
2 Correct 98 ms 118608 KB Output is correct
3 Correct 82 ms 118532 KB Output is correct
4 Correct 80 ms 118608 KB Output is correct
5 Correct 92 ms 120220 KB Output is correct
6 Correct 102 ms 118596 KB Output is correct
7 Correct 87 ms 118788 KB Output is correct
8 Correct 97 ms 120328 KB Output is correct
9 Correct 98 ms 120252 KB Output is correct
10 Correct 101 ms 118608 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 106 ms 120524 KB Output is correct
2 Correct 93 ms 120408 KB Output is correct
3 Correct 96 ms 120524 KB Output is correct
4 Correct 109 ms 120492 KB Output is correct
5 Correct 99 ms 120564 KB Output is correct
6 Correct 102 ms 120492 KB Output is correct
7 Correct 109 ms 120688 KB Output is correct
8 Correct 105 ms 120564 KB Output is correct
9 Correct 98 ms 120524 KB Output is correct
10 Correct 97 ms 120616 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 324 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 456 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 324 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 324 KB Output is correct
18 Correct 1 ms 456 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 724 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 852 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 724 KB Output is correct
26 Correct 1 ms 724 KB Output is correct
27 Correct 2 ms 720 KB Output is correct
28 Correct 1 ms 724 KB Output is correct
29 Correct 1 ms 724 KB Output is correct
30 Correct 1 ms 724 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 103 ms 120268 KB Output is correct
2 Correct 96 ms 120368 KB Output is correct
3 Correct 95 ms 120396 KB Output is correct
4 Correct 94 ms 120428 KB Output is correct
5 Correct 94 ms 120312 KB Output is correct
6 Correct 91 ms 120204 KB Output is correct
7 Correct 98 ms 120224 KB Output is correct
8 Correct 107 ms 120452 KB Output is correct
9 Correct 92 ms 120324 KB Output is correct
10 Correct 91 ms 120352 KB Output is correct
11 Correct 87 ms 118648 KB Output is correct
12 Correct 98 ms 118608 KB Output is correct
13 Correct 82 ms 118532 KB Output is correct
14 Correct 80 ms 118608 KB Output is correct
15 Correct 92 ms 120220 KB Output is correct
16 Correct 102 ms 118596 KB Output is correct
17 Correct 87 ms 118788 KB Output is correct
18 Correct 97 ms 120328 KB Output is correct
19 Correct 98 ms 120252 KB Output is correct
20 Correct 101 ms 118608 KB Output is correct
21 Correct 106 ms 120524 KB Output is correct
22 Correct 93 ms 120408 KB Output is correct
23 Correct 96 ms 120524 KB Output is correct
24 Correct 109 ms 120492 KB Output is correct
25 Correct 99 ms 120564 KB Output is correct
26 Correct 102 ms 120492 KB Output is correct
27 Correct 109 ms 120688 KB Output is correct
28 Correct 105 ms 120564 KB Output is correct
29 Correct 98 ms 120524 KB Output is correct
30 Correct 97 ms 120616 KB Output is correct
31 Correct 1 ms 328 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 340 KB Output is correct
42 Correct 0 ms 324 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 1 ms 324 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 1 ms 324 KB Output is correct
48 Correct 1 ms 456 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 724 KB Output is correct
52 Correct 1 ms 724 KB Output is correct
53 Correct 1 ms 852 KB Output is correct
54 Correct 1 ms 724 KB Output is correct
55 Correct 1 ms 724 KB Output is correct
56 Correct 1 ms 724 KB Output is correct
57 Correct 2 ms 720 KB Output is correct
58 Correct 1 ms 724 KB Output is correct
59 Correct 1 ms 724 KB Output is correct
60 Correct 1 ms 724 KB Output is correct
61 Correct 161 ms 120516 KB Output is correct
62 Correct 179 ms 120644 KB Output is correct
63 Correct 116 ms 120416 KB Output is correct
64 Correct 151 ms 120524 KB Output is correct
65 Correct 136 ms 120596 KB Output is correct
66 Correct 136 ms 120588 KB Output is correct
67 Correct 137 ms 120496 KB Output is correct
68 Correct 93 ms 120556 KB Output is correct
69 Correct 94 ms 120464 KB Output is correct
70 Correct 94 ms 120380 KB Output is correct