oj.uz

답안 #790880

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
790880 2023-07-23T09:11:16 Z penguinman 송신탑 (IOI22_towers) C++17
23 / 100
 4000 ms 2688 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+1].pb(right[i]);
      ml[left[i]].pb(i+1);
      mr[i+1].pb(left[i]);
      mr[right[i]].pb(i+1);
    }
    REP(l,1,sz){
      rep(i,0,sz){
        ll j = i+l;
        if(j >= sz) break;
        sum[i][j] = sum[i+1][j]+sum[i][j-1]-sum[i+1][j-1];
      }
    }*/
  }
  ll ans = 0;
  ll ld = (L+di-1)/di;
  ll rd = R/di;
  //ans = psum[ld][rd]-msum[ld][rd];
  ans = 0;
  rep(i,0,N){
    if(left[i] <= L && R <= right[i]) ans++;
    if(i+1 <= L && R <= right[i]) ans--;
    if(left[i] <= L && R <= i-1) ans--;
  }
  return ans;
}

Compilation message

towers.cpp: In function 'int max_towers(int, int, int)':
towers.cpp:131:6: warning: unused variable 'ld' [-Wunused-variable]
  131 |   ll ld = (L+di-1)/di;
      |      ^~
towers.cpp:132:6: warning: unused variable 'rd' [-Wunused-variable]
  132 |   ll rd = R/di;
      |      ^~

Subtask #1
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3424 ms 1756 KB 31st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 0 ms 208 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 2 ms 228 KB Output is correct
28 Correct 1 ms 208 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 0 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 0 ms 208 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 2 ms 228 KB Output is correct
28 Correct 1 ms 208 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 0 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 19 ms 1488 KB Output is correct
37 Correct 24 ms 2208 KB Output is correct
38 Correct 30 ms 2212 KB Output is correct
39 Correct 27 ms 2228 KB Output is correct
40 Correct 34 ms 2232 KB Output is correct
41 Correct 22 ms 2208 KB Output is correct
42 Correct 20 ms 2212 KB Output is correct
43 Correct 44 ms 2676 KB Output is correct
44 Correct 32 ms 2584 KB Output is correct
45 Correct 34 ms 2380 KB Output is correct
46 Correct 36 ms 2344 KB Output is correct
47 Correct 33 ms 2120 KB Output is correct
48 Correct 27 ms 2328 KB Output is correct
49 Correct 29 ms 2220 KB Output is correct
50 Correct 27 ms 2624 KB Output is correct
51 Correct 31 ms 2552 KB Output is correct
52 Correct 28 ms 2220 KB Output is correct
53 Correct 32 ms 2236 KB Output is correct
54 Correct 28 ms 2124 KB Output is correct
55 Correct 37 ms 2604 KB Output is correct
56 Correct 25 ms 2548 KB Output is correct
57 Correct 34 ms 2128 KB Output is correct
58 Correct 31 ms 2220 KB Output is correct
59 Correct 35 ms 2224 KB Output is correct
60 Correct 20 ms 2208 KB Output is correct
61 Correct 28 ms 2216 KB Output is correct
62 Correct 32 ms 2212 KB Output is correct
63 Correct 26 ms 2236 KB Output is correct
64 Correct 35 ms 2604 KB Output is correct
65 Correct 45 ms 2688 KB Output is correct
66 Correct 36 ms 2456 KB Output is correct
67 Correct 43 ms 2644 KB Output is correct

Subtask #4
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 4040 ms 2204 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3501 ms 756 KB 2nd lines differ - on the 1st token, expected: '7063', found: '7197'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 0 ms 208 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 2 ms 228 KB Output is correct
28 Correct 1 ms 208 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 0 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 19 ms 1488 KB Output is correct
37 Correct 24 ms 2208 KB Output is correct
38 Correct 30 ms 2212 KB Output is correct
39 Correct 27 ms 2228 KB Output is correct
40 Correct 34 ms 2232 KB Output is correct
41 Correct 22 ms 2208 KB Output is correct
42 Correct 20 ms 2212 KB Output is correct
43 Correct 44 ms 2676 KB Output is correct
44 Correct 32 ms 2584 KB Output is correct
45 Correct 34 ms 2380 KB Output is correct
46 Correct 36 ms 2344 KB Output is correct
47 Correct 33 ms 2120 KB Output is correct
48 Correct 27 ms 2328 KB Output is correct
49 Correct 29 ms 2220 KB Output is correct
50 Correct 27 ms 2624 KB Output is correct
51 Correct 31 ms 2552 KB Output is correct
52 Correct 28 ms 2220 KB Output is correct
53 Correct 32 ms 2236 KB Output is correct
54 Correct 28 ms 2124 KB Output is correct
55 Correct 37 ms 2604 KB Output is correct
56 Correct 25 ms 2548 KB Output is correct
57 Correct 34 ms 2128 KB Output is correct
58 Correct 31 ms 2220 KB Output is correct
59 Correct 35 ms 2224 KB Output is correct
60 Correct 20 ms 2208 KB Output is correct
61 Correct 28 ms 2216 KB Output is correct
62 Correct 32 ms 2212 KB Output is correct
63 Correct 26 ms 2236 KB Output is correct
64 Correct 35 ms 2604 KB Output is correct
65 Correct 45 ms 2688 KB Output is correct
66 Correct 36 ms 2456 KB Output is correct
67 Correct 43 ms 2644 KB Output is correct
68 Execution timed out 4040 ms 2204 KB Time limit exceeded
69 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3424 ms 1756 KB 31st lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -