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Submission #790839

# Submission time Handle Problem Language Result Execution time Memory
790839 2023-07-23T08:54:57 Z penguinman Radio Towers (IOI22_towers) C++17
37 / 100
 1159 ms 119996 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 = 20;
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+10;
      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+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,0){
      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,N+2){
        sort(all(pr[i]));
        sort(all(pl[i]));
        sort(all(mr[i]));
        sort(all(ml[i]));
    }
  }
  ll ans = 0;
  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]), R);
    ans -= ml[i].end()-lower_bound(all(ml[i]), R);
  }
  rep(i,R,std::min(N+2,rd*di)){
    ans += upper_bound(all(pr[i]), ld*di)-pr[i].begin();
    ans -= upper_bound(all(mr[i]), ld*di)-mr[i].begin();
  }
  return ans;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 355 ms 48024 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 384 KB Output is correct
2 Correct 2 ms 740 KB Output is correct
3 Correct 2 ms 720 KB Output is correct
4 Correct 2 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 2 ms 720 KB Output is correct
11 Correct 2 ms 720 KB Output is correct
12 Correct 0 ms 208 KB Output is correct
13 Correct 2 ms 720 KB Output is correct
14 Correct 1 ms 720 KB Output is correct
15 Correct 1 ms 720 KB Output is correct
16 Correct 1 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 1 ms 720 KB Output is correct
22 Correct 1 ms 720 KB Output is correct
23 Correct 1 ms 720 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 1 ms 720 KB Output is correct
30 Correct 2 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

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 2 ms 740 KB Output is correct
3 Correct 2 ms 720 KB Output is correct
4 Correct 2 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 2 ms 720 KB Output is correct
11 Correct 2 ms 720 KB Output is correct
12 Correct 0 ms 208 KB Output is correct
13 Correct 2 ms 720 KB Output is correct
14 Correct 1 ms 720 KB Output is correct
15 Correct 1 ms 720 KB Output is correct
16 Correct 1 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 1 ms 720 KB Output is correct
22 Correct 1 ms 720 KB Output is correct
23 Correct 1 ms 720 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 1 ms 720 KB Output is correct
30 Correct 2 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 110 ms 55940 KB Output is correct
37 Correct 262 ms 119396 KB Output is correct
38 Correct 257 ms 119996 KB Output is correct
39 Correct 264 ms 119316 KB Output is correct
40 Correct 270 ms 119744 KB Output is correct
41 Correct 261 ms 119652 KB Output is correct
42 Correct 262 ms 119860 KB Output is correct
43 Correct 261 ms 119832 KB Output is correct
44 Correct 259 ms 119820 KB Output is correct
45 Correct 275 ms 119836 KB Output is correct
46 Correct 262 ms 119976 KB Output is correct
47 Correct 261 ms 119832 KB Output is correct
48 Correct 264 ms 119864 KB Output is correct
49 Correct 260 ms 119952 KB Output is correct
50 Correct 259 ms 119832 KB Output is correct
51 Correct 265 ms 119752 KB Output is correct
52 Correct 264 ms 119848 KB Output is correct
53 Correct 276 ms 119908 KB Output is correct
54 Correct 273 ms 119912 KB Output is correct
55 Correct 254 ms 119716 KB Output is correct
56 Correct 250 ms 119840 KB Output is correct
57 Correct 262 ms 112276 KB Output is correct
58 Correct 260 ms 119544 KB Output is correct
59 Correct 283 ms 119668 KB Output is correct
60 Correct 274 ms 119896 KB Output is correct
61 Correct 267 ms 119728 KB Output is correct
62 Correct 279 ms 119740 KB Output is correct
63 Correct 282 ms 119840 KB Output is correct
64 Correct 276 ms 119836 KB Output is correct
65 Correct 284 ms 119840 KB Output is correct
66 Correct 292 ms 119856 KB Output is correct
67 Correct 270 ms 119832 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 997 ms 118444 KB Output is correct
2 Correct 994 ms 119904 KB Output is correct
3 Correct 1065 ms 119904 KB Output is correct
4 Correct 1095 ms 119892 KB Output is correct
5 Correct 1002 ms 119840 KB Output is correct
6 Correct 1094 ms 119892 KB Output is correct
7 Correct 1016 ms 119912 KB Output is correct
8 Correct 964 ms 119840 KB Output is correct
9 Correct 1018 ms 119836 KB Output is correct
10 Correct 957 ms 119836 KB Output is correct
11 Correct 832 ms 119836 KB Output is correct
12 Correct 1134 ms 119828 KB Output is correct
13 Correct 1010 ms 119824 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 720 KB Output is correct
16 Correct 1 ms 720 KB Output is correct
17 Correct 259 ms 119840 KB Output is correct
18 Correct 254 ms 119832 KB Output is correct
19 Correct 260 ms 119908 KB Output is correct
20 Correct 292 ms 119832 KB Output is correct
21 Correct 258 ms 119792 KB Output is correct
22 Correct 266 ms 119964 KB Output is correct
23 Correct 274 ms 119912 KB Output is correct
24 Correct 259 ms 119904 KB Output is correct
25 Correct 264 ms 119832 KB Output is correct
26 Correct 265 ms 119828 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 2 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 188 ms 11084 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 384 KB Output is correct
2 Correct 2 ms 740 KB Output is correct
3 Correct 2 ms 720 KB Output is correct
4 Correct 2 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 2 ms 720 KB Output is correct
11 Correct 2 ms 720 KB Output is correct
12 Correct 0 ms 208 KB Output is correct
13 Correct 2 ms 720 KB Output is correct
14 Correct 1 ms 720 KB Output is correct
15 Correct 1 ms 720 KB Output is correct
16 Correct 1 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 1 ms 720 KB Output is correct
22 Correct 1 ms 720 KB Output is correct
23 Correct 1 ms 720 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 1 ms 720 KB Output is correct
30 Correct 2 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 110 ms 55940 KB Output is correct
37 Correct 262 ms 119396 KB Output is correct
38 Correct 257 ms 119996 KB Output is correct
39 Correct 264 ms 119316 KB Output is correct
40 Correct 270 ms 119744 KB Output is correct
41 Correct 261 ms 119652 KB Output is correct
42 Correct 262 ms 119860 KB Output is correct
43 Correct 261 ms 119832 KB Output is correct
44 Correct 259 ms 119820 KB Output is correct
45 Correct 275 ms 119836 KB Output is correct
46 Correct 262 ms 119976 KB Output is correct
47 Correct 261 ms 119832 KB Output is correct
48 Correct 264 ms 119864 KB Output is correct
49 Correct 260 ms 119952 KB Output is correct
50 Correct 259 ms 119832 KB Output is correct
51 Correct 265 ms 119752 KB Output is correct
52 Correct 264 ms 119848 KB Output is correct
53 Correct 276 ms 119908 KB Output is correct
54 Correct 273 ms 119912 KB Output is correct
55 Correct 254 ms 119716 KB Output is correct
56 Correct 250 ms 119840 KB Output is correct
57 Correct 262 ms 112276 KB Output is correct
58 Correct 260 ms 119544 KB Output is correct
59 Correct 283 ms 119668 KB Output is correct
60 Correct 274 ms 119896 KB Output is correct
61 Correct 267 ms 119728 KB Output is correct
62 Correct 279 ms 119740 KB Output is correct
63 Correct 282 ms 119840 KB Output is correct
64 Correct 276 ms 119836 KB Output is correct
65 Correct 284 ms 119840 KB Output is correct
66 Correct 292 ms 119856 KB Output is correct
67 Correct 270 ms 119832 KB Output is correct
68 Correct 997 ms 118444 KB Output is correct
69 Correct 994 ms 119904 KB Output is correct
70 Correct 1065 ms 119904 KB Output is correct
71 Correct 1095 ms 119892 KB Output is correct
72 Correct 1002 ms 119840 KB Output is correct
73 Correct 1094 ms 119892 KB Output is correct
74 Correct 1016 ms 119912 KB Output is correct
75 Correct 964 ms 119840 KB Output is correct
76 Correct 1018 ms 119836 KB Output is correct
77 Correct 957 ms 119836 KB Output is correct
78 Correct 832 ms 119836 KB Output is correct
79 Correct 1134 ms 119828 KB Output is correct
80 Correct 1010 ms 119824 KB Output is correct
81 Correct 1 ms 208 KB Output is correct
82 Correct 1 ms 720 KB Output is correct
83 Correct 1 ms 720 KB Output is correct
84 Correct 259 ms 119840 KB Output is correct
85 Correct 254 ms 119832 KB Output is correct
86 Correct 260 ms 119908 KB Output is correct
87 Correct 292 ms 119832 KB Output is correct
88 Correct 258 ms 119792 KB Output is correct
89 Correct 266 ms 119964 KB Output is correct
90 Correct 274 ms 119912 KB Output is correct
91 Correct 259 ms 119904 KB Output is correct
92 Correct 264 ms 119832 KB Output is correct
93 Correct 265 ms 119828 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 2 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 936 ms 96632 KB Output is correct
105 Correct 1159 ms 119688 KB Output is correct
106 Correct 940 ms 119472 KB Output is correct
107 Correct 1012 ms 119604 KB Output is correct
108 Incorrect 1068 ms 119360 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 355 ms 48024 KB 31st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -