oj.uz

Submission #790898

# Submission time Handle Problem Language Result Execution time Memory
790898 2023-07-23T09:19:13 Z penguinman Radio Towers (IOI22_towers) C++17
37 / 100
 1014 ms 67856 KB 
#include "towers.h"

#include <bits/stdc++.h>

using std::vector;
using std::string;
using std::cin;
using std::cout;
using ll = int;
using vi = vector<ll>;
using vii = vector<vi>;
using pii = std::pair<ll,ll>;
#define ln "\n"
#define rep(i,j,k) for(ll i=ll(j); i<ll(k); i++)
#define REP(i,j,k) for(ll i=ll(j); i<=ll(k); i++)
#define per(i,j,k) for(ll i=ll(j); i>=ll(k); i--)
#define all(a) a.begin(), a.end()
#define mp std::make_pair
#define pb emplace_back
constexpr ll inf = (1<<30)+(1<<29)+(1<<28);

ll N;
vi H;
ll D;
vi right, left;
constexpr ll di = 30;
ll sz;
vii pr, mr, pl, ml;
vii sum;

void init(int n, std::vector<int> h) {
  N = n;
  H.resize(N);
  right.resize(N);
  left.resize(N);
  rep(i,0,N) H[i] = h[i];
  D = -1;
}

int max_towers(int L, int R, int d) {
  if(D == -1){
    D = d;
    {
      sz = N/di+100;
      sum.resize(sz, vi(sz));
      pr.resize(N+2);
      mr.resize(N+2);
      pl.resize(N+2);
      ml.resize(N+2);
      std::deque<ll> ima, vma, imi, vmi;
      ima.pb(-3);
      vma.pb(-inf);
      imi.pb(-2);
      vmi.pb(inf);
      rep(i,0,N){
        ll large = lower_bound(all(vmi), H[i]+D)-vmi.begin();
        large = imi[large];
        ll small = lower_bound(all(vma),H[i])-vma.begin()-1;
        small = ima[small];
        if(small >= large) left[i] = small+1;
        else left[i] = -1;
        while(true){
          if(vma[vma.size()-1] > H[i]) vma.pop_back(), ima.pop_back();
          else break;
        }
        vma.pb(H[i]);
        ima.pb(i);
        while(true){
          if(vmi[0] < H[i]) vmi.pop_front(), imi.pop_front();
          else break;
        }
        vmi.emplace_front(H[i]);
        imi.emplace_front(i);
      }
    }
    {
      std::deque<ll> ima, vma, imi, vmi;
      ima.pb(N+3);
      vma.pb(-inf);
      imi.pb(N+2);
      vmi.pb(inf);
      per(i,N-1,0){
        ll large = lower_bound(all(vmi), H[i]+D)-vmi.begin();
        large = imi[large];
        ll small = lower_bound(all(vma),H[i])-vma.begin()-1;
        small = ima[small];
        if(small <= large) right[i] = small-1;
        else right[i] = N;
        while(true){
          if(vma[vma.size()-1] > H[i]) vma.pop_back(), ima.pop_back();
          else break;
        }
        vma.pb(H[i]);
        ima.pb(i);
        while(true){
          if(vmi[0] < H[i]) vmi.pop_front(), imi.pop_front();
          else break;
        }
        vmi.emplace_front(H[i]);
        imi.emplace_front(i);
      }
    }
    rep(i,0,N){
      left[i]++;
      right[i]++;
      ll ld = (left[i]+di-1)/di;
      ll rd = right[i]/di;
      sum[ld][rd]++;
      ll id = i/di;
      sum[ld][id]--;
      id = (i+2+di-1)/di;
      sum[id][rd]--;
      pr[right[i]].pb(left[i]);
      pl[left[i]].pb(right[i]);
      ml[i+2].pb(right[i]);
      ml[left[i]].pb(i);
      mr[i].pb(left[i]);
      mr[right[i]].pb(i+2);
    }
    per(l,sz,1){
      rep(i,0,sz){
        ll j = i+l;
        if(j >= sz) break;
        if(i) sum[i][j] += sum[i-1][j];
        if(j+1 < sz) sum[i][j] += sum[i][j+1];
        if(i && j+1<sz) sum[i][j] -= sum[i-1][j+1];
      }
    }
    rep(i,0,pr.size()){
        sort(all(pr[i]));
        sort(all(pl[i]));
        sort(all(mr[i]));
        sort(all(ml[i]));
    }
  }
  ll ans = 0;
  if(R-L <= 1000){
    REP(i,L,R){
        if(left[i]-1 <= L && R <= right[i]-1) ans++;
    }
    return ans;
  }
  L++, R++;
  ll ld = L/di;
  ll rd = (R+di-1)/di;
  ans = sum[ld][rd];
  REP(i, ld*di+1, L){
    ans += pl[i].end()-lower_bound(all(pl[i]), rd*di);
    ans -= ml[i].end()-lower_bound(all(ml[i]), rd*di);
  }
  rep(i,R,rd*di){
    if(i >= int(pr.size())) continue;
    ans += upper_bound(all(pr[i]), L)-pr[i].begin();
    ans -= upper_bound(all(mr[i]), L)-mr[i].begin();
  }
  return ans;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 398 ms 30044 KB 31st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 2 ms 720 KB Output is correct
3 Correct 2 ms 720 KB Output is correct
4 Correct 1 ms 720 KB Output is correct
5 Correct 1 ms 720 KB Output is correct
6 Correct 1 ms 720 KB Output is correct
7 Correct 1 ms 720 KB Output is correct
8 Correct 1 ms 720 KB Output is correct
9 Correct 1 ms 720 KB Output is correct
10 Correct 1 ms 720 KB Output is correct
11 Correct 1 ms 720 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 720 KB Output is correct
14 Correct 2 ms 720 KB Output is correct
15 Correct 1 ms 720 KB Output is correct
16 Correct 2 ms 720 KB Output is correct
17 Correct 1 ms 720 KB Output is correct
18 Correct 1 ms 720 KB Output is correct
19 Correct 1 ms 720 KB Output is correct
20 Correct 1 ms 720 KB Output is correct
21 Correct 2 ms 720 KB Output is correct
22 Correct 1 ms 720 KB Output is correct
23 Correct 1 ms 848 KB Output is correct
24 Correct 1 ms 720 KB Output is correct
25 Correct 1 ms 464 KB Output is correct
26 Correct 2 ms 720 KB Output is correct
27 Correct 2 ms 720 KB Output is correct
28 Correct 2 ms 720 KB Output is correct
29 Correct 2 ms 824 KB Output is correct
30 Correct 2 ms 720 KB Output is correct
31 Correct 2 ms 720 KB Output is correct
32 Correct 2 ms 720 KB Output is correct
33 Correct 1 ms 720 KB Output is correct
34 Correct 2 ms 868 KB Output is correct
35 Correct 2 ms 720 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 2 ms 720 KB Output is correct
3 Correct 2 ms 720 KB Output is correct
4 Correct 1 ms 720 KB Output is correct
5 Correct 1 ms 720 KB Output is correct
6 Correct 1 ms 720 KB Output is correct
7 Correct 1 ms 720 KB Output is correct
8 Correct 1 ms 720 KB Output is correct
9 Correct 1 ms 720 KB Output is correct
10 Correct 1 ms 720 KB Output is correct
11 Correct 1 ms 720 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 720 KB Output is correct
14 Correct 2 ms 720 KB Output is correct
15 Correct 1 ms 720 KB Output is correct
16 Correct 2 ms 720 KB Output is correct
17 Correct 1 ms 720 KB Output is correct
18 Correct 1 ms 720 KB Output is correct
19 Correct 1 ms 720 KB Output is correct
20 Correct 1 ms 720 KB Output is correct
21 Correct 2 ms 720 KB Output is correct
22 Correct 1 ms 720 KB Output is correct
23 Correct 1 ms 848 KB Output is correct
24 Correct 1 ms 720 KB Output is correct
25 Correct 1 ms 464 KB Output is correct
26 Correct 2 ms 720 KB Output is correct
27 Correct 2 ms 720 KB Output is correct
28 Correct 2 ms 720 KB Output is correct
29 Correct 2 ms 824 KB Output is correct
30 Correct 2 ms 720 KB Output is correct
31 Correct 2 ms 720 KB Output is correct
32 Correct 2 ms 720 KB Output is correct
33 Correct 1 ms 720 KB Output is correct
34 Correct 2 ms 868 KB Output is correct
35 Correct 2 ms 720 KB Output is correct
36 Correct 70 ms 34276 KB Output is correct
37 Correct 158 ms 67236 KB Output is correct
38 Correct 154 ms 67732 KB Output is correct
39 Correct 145 ms 67172 KB Output is correct
40 Correct 150 ms 67500 KB Output is correct
41 Correct 138 ms 67404 KB Output is correct
42 Correct 145 ms 67760 KB Output is correct
43 Correct 153 ms 67688 KB Output is correct
44 Correct 145 ms 67676 KB Output is correct
45 Correct 153 ms 67644 KB Output is correct
46 Correct 147 ms 67616 KB Output is correct
47 Correct 148 ms 67704 KB Output is correct
48 Correct 135 ms 67760 KB Output is correct
49 Correct 137 ms 67856 KB Output is correct
50 Correct 152 ms 67688 KB Output is correct
51 Correct 158 ms 67628 KB Output is correct
52 Correct 133 ms 67664 KB Output is correct
53 Correct 138 ms 67844 KB Output is correct
54 Correct 137 ms 67764 KB Output is correct
55 Correct 139 ms 67680 KB Output is correct
56 Correct 145 ms 67684 KB Output is correct
57 Correct 140 ms 63732 KB Output is correct
58 Correct 148 ms 67384 KB Output is correct
59 Correct 144 ms 67512 KB Output is correct
60 Correct 142 ms 67764 KB Output is correct
61 Correct 137 ms 67620 KB Output is correct
62 Correct 139 ms 67492 KB Output is correct
63 Correct 138 ms 67604 KB Output is correct
64 Correct 144 ms 67672 KB Output is correct
65 Correct 146 ms 67680 KB Output is correct
66 Correct 143 ms 67712 KB Output is correct
67 Correct 147 ms 67684 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 782 ms 66880 KB Output is correct
2 Correct 944 ms 67648 KB Output is correct
3 Correct 1014 ms 67724 KB Output is correct
4 Correct 747 ms 67748 KB Output is correct
5 Correct 910 ms 67756 KB Output is correct
6 Correct 890 ms 67732 KB Output is correct
7 Correct 957 ms 67648 KB Output is correct
8 Correct 841 ms 67620 KB Output is correct
9 Correct 770 ms 67684 KB Output is correct
10 Correct 975 ms 67692 KB Output is correct
11 Correct 719 ms 67596 KB Output is correct
12 Correct 959 ms 67692 KB Output is correct
13 Correct 800 ms 67752 KB Output is correct
14 Correct 0 ms 336 KB Output is correct
15 Correct 1 ms 720 KB Output is correct
16 Correct 1 ms 720 KB Output is correct
17 Correct 132 ms 67708 KB Output is correct
18 Correct 132 ms 67748 KB Output is correct
19 Correct 132 ms 67708 KB Output is correct
20 Correct 135 ms 67688 KB Output is correct
21 Correct 138 ms 67760 KB Output is correct
22 Correct 137 ms 67732 KB Output is correct
23 Correct 133 ms 67764 KB Output is correct
24 Correct 134 ms 67748 KB Output is correct
25 Correct 141 ms 67688 KB Output is correct
26 Correct 140 ms 67648 KB Output is correct
27 Correct 1 ms 720 KB Output is correct
28 Correct 1 ms 720 KB Output is correct
29 Correct 1 ms 720 KB Output is correct
30 Correct 1 ms 720 KB Output is correct
31 Correct 1 ms 720 KB Output is correct
32 Correct 1 ms 720 KB Output is correct
33 Correct 1 ms 720 KB Output is correct
34 Correct 1 ms 720 KB Output is correct
35 Correct 1 ms 720 KB Output is correct
36 Correct 2 ms 720 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 163 ms 8612 KB 2nd lines differ - on the 1st token, expected: '7063', found: '7197'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 2 ms 720 KB Output is correct
3 Correct 2 ms 720 KB Output is correct
4 Correct 1 ms 720 KB Output is correct
5 Correct 1 ms 720 KB Output is correct
6 Correct 1 ms 720 KB Output is correct
7 Correct 1 ms 720 KB Output is correct
8 Correct 1 ms 720 KB Output is correct
9 Correct 1 ms 720 KB Output is correct
10 Correct 1 ms 720 KB Output is correct
11 Correct 1 ms 720 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 720 KB Output is correct
14 Correct 2 ms 720 KB Output is correct
15 Correct 1 ms 720 KB Output is correct
16 Correct 2 ms 720 KB Output is correct
17 Correct 1 ms 720 KB Output is correct
18 Correct 1 ms 720 KB Output is correct
19 Correct 1 ms 720 KB Output is correct
20 Correct 1 ms 720 KB Output is correct
21 Correct 2 ms 720 KB Output is correct
22 Correct 1 ms 720 KB Output is correct
23 Correct 1 ms 848 KB Output is correct
24 Correct 1 ms 720 KB Output is correct
25 Correct 1 ms 464 KB Output is correct
26 Correct 2 ms 720 KB Output is correct
27 Correct 2 ms 720 KB Output is correct
28 Correct 2 ms 720 KB Output is correct
29 Correct 2 ms 824 KB Output is correct
30 Correct 2 ms 720 KB Output is correct
31 Correct 2 ms 720 KB Output is correct
32 Correct 2 ms 720 KB Output is correct
33 Correct 1 ms 720 KB Output is correct
34 Correct 2 ms 868 KB Output is correct
35 Correct 2 ms 720 KB Output is correct
36 Correct 70 ms 34276 KB Output is correct
37 Correct 158 ms 67236 KB Output is correct
38 Correct 154 ms 67732 KB Output is correct
39 Correct 145 ms 67172 KB Output is correct
40 Correct 150 ms 67500 KB Output is correct
41 Correct 138 ms 67404 KB Output is correct
42 Correct 145 ms 67760 KB Output is correct
43 Correct 153 ms 67688 KB Output is correct
44 Correct 145 ms 67676 KB Output is correct
45 Correct 153 ms 67644 KB Output is correct
46 Correct 147 ms 67616 KB Output is correct
47 Correct 148 ms 67704 KB Output is correct
48 Correct 135 ms 67760 KB Output is correct
49 Correct 137 ms 67856 KB Output is correct
50 Correct 152 ms 67688 KB Output is correct
51 Correct 158 ms 67628 KB Output is correct
52 Correct 133 ms 67664 KB Output is correct
53 Correct 138 ms 67844 KB Output is correct
54 Correct 137 ms 67764 KB Output is correct
55 Correct 139 ms 67680 KB Output is correct
56 Correct 145 ms 67684 KB Output is correct
57 Correct 140 ms 63732 KB Output is correct
58 Correct 148 ms 67384 KB Output is correct
59 Correct 144 ms 67512 KB Output is correct
60 Correct 142 ms 67764 KB Output is correct
61 Correct 137 ms 67620 KB Output is correct
62 Correct 139 ms 67492 KB Output is correct
63 Correct 138 ms 67604 KB Output is correct
64 Correct 144 ms 67672 KB Output is correct
65 Correct 146 ms 67680 KB Output is correct
66 Correct 143 ms 67712 KB Output is correct
67 Correct 147 ms 67684 KB Output is correct
68 Correct 782 ms 66880 KB Output is correct
69 Correct 944 ms 67648 KB Output is correct
70 Correct 1014 ms 67724 KB Output is correct
71 Correct 747 ms 67748 KB Output is correct
72 Correct 910 ms 67756 KB Output is correct
73 Correct 890 ms 67732 KB Output is correct
74 Correct 957 ms 67648 KB Output is correct
75 Correct 841 ms 67620 KB Output is correct
76 Correct 770 ms 67684 KB Output is correct
77 Correct 975 ms 67692 KB Output is correct
78 Correct 719 ms 67596 KB Output is correct
79 Correct 959 ms 67692 KB Output is correct
80 Correct 800 ms 67752 KB Output is correct
81 Correct 0 ms 336 KB Output is correct
82 Correct 1 ms 720 KB Output is correct
83 Correct 1 ms 720 KB Output is correct
84 Correct 132 ms 67708 KB Output is correct
85 Correct 132 ms 67748 KB Output is correct
86 Correct 132 ms 67708 KB Output is correct
87 Correct 135 ms 67688 KB Output is correct
88 Correct 138 ms 67760 KB Output is correct
89 Correct 137 ms 67732 KB Output is correct
90 Correct 133 ms 67764 KB Output is correct
91 Correct 134 ms 67748 KB Output is correct
92 Correct 141 ms 67688 KB Output is correct
93 Correct 140 ms 67648 KB Output is correct
94 Correct 1 ms 720 KB Output is correct
95 Correct 1 ms 720 KB Output is correct
96 Correct 1 ms 720 KB Output is correct
97 Correct 1 ms 720 KB Output is correct
98 Correct 1 ms 720 KB Output is correct
99 Correct 1 ms 720 KB Output is correct
100 Correct 1 ms 720 KB Output is correct
101 Correct 1 ms 720 KB Output is correct
102 Correct 1 ms 720 KB Output is correct
103 Correct 2 ms 720 KB Output is correct
104 Correct 730 ms 55660 KB Output is correct
105 Correct 929 ms 67548 KB Output is correct
106 Correct 968 ms 67356 KB Output is correct
107 Correct 886 ms 67392 KB Output is correct
108 Incorrect 894 ms 67112 KB 207th lines differ - on the 1st token, expected: '641', found: '642'
109 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 398 ms 30044 KB 31st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -