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Submission #536561

# Submission time Handle Problem Language Result Execution time Memory
536561 2022-03-13T14:16:51 Z cig32 Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
64 / 100
 878 ms 262144 KB 
#include "bits/stdc++.h"
using namespace std;
const int MAXN = 1e6 + 10;
const int MOD = 1e9 + 7;
 
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
  int u = uniform_int_distribution<int>(x, y)(rng); return u;
}
 
struct node {
  int ans; // maximum sum inversion in range
  vector<int> v; // SORTED!!! crazy memory moment
} st[3*MAXN];
int n, m;
vector<int> v[MAXN];
void bu(int l, int r, int idx) {
  v[l].push_back(idx);
  st[idx].v.resize(r-l+1);
  if(l == r) {
    int w;
    cin >> w;
    st[idx].v[0] = w;
    st[idx].ans = -1;
    return;
  }
  int mid = (l + r) >> 1;
  bu(l, mid, 2*idx + 1);
  bu(mid+1, r, 2*idx + 2);
  int lptr = 0, rptr = 0;
  int nxt = 0;
  while(!(lptr == st[2*idx + 1].v.size() && rptr == st[2*idx + 2].v.size())) {
    if(lptr == st[2*idx+1].v.size()) {
      st[idx].v[nxt] = st[2*idx+2].v[rptr];
      rptr++;
      nxt++;
    }
    else if(rptr == st[2*idx+2].v.size()) {
      st[idx].v[nxt] = st[2*idx+1].v[lptr];
      lptr++;
      nxt++;
    }
    else {
      if(st[2*idx+1].v[lptr] < st[2*idx+2].v[rptr]) {
        st[idx].v[nxt] = st[2*idx+1].v[lptr];
        lptr++;
        nxt++;
      }
      else {
        st[idx].v[nxt] = st[2*idx+2].v[rptr];
        rptr++;
        nxt++;
      }
    }
  }
  st[idx].ans = max(st[2*idx+1].ans, st[2*idx+2].ans);
  int ma = st[2*idx+1].v[st[2*idx+1].v.size() - 1];
  int lb = 0, rb = st[2*idx+2].v.size() - 1;
  while(lb < rb) {
    int mid = (lb + rb + 1) >> 1;
    if(st[2*idx+2].v[mid] < ma) lb = mid;
    else rb = mid - 1;
  }
  if(st[2*idx+2].v[lb] < ma) {
    st[idx].ans = max(st[idx].ans, st[2*idx+2].v[lb] + ma);
  }
}
 
void build() {
  bu(1, n, 0);
}

int calc(int idx1) {
  return st[idx1].v.size() - 1;
}
bool cmp(int a, int b) {
  return calc(a) < calc(b);
}
void solve(int tc) {
  cin >> n >> m;
  build();
  for(int i=1; i<=n; i++) sort(v[i].begin(), v[i].end(), cmp);
  for(int i=0; i<m; i++) {
    int l, r, k;
    cin >> l >> r >> k;
    int ma = -2e9;
    int ans = -2e9;
    while(l <= r) {
      int lb = 0, rb = v[l].size() - 1;
      while(lb < rb) {
        int mid = (lb + rb + 1) >> 1;
        int idx1 = v[l][mid];
        int range = l + st[idx1].v.size() - 1;
        if(range <= r) lb = mid;
        else rb = mid - 1;
      }
      int idx = v[l][lb];
      ans = max(ans, st[idx].ans);
      int lb2 = 0, rb2 = st[idx].v.size() - 1;
      while(lb2 < rb2) {
        int mid = (lb2 + rb2 + 1) >> 1;
        if(st[idx].v[mid] < ma) lb2 = mid;
        else rb2 = mid - 1;
      }
      if(st[idx].v[lb2] < ma) ans = max(ans, ma + st[idx].v[lb2]);
      ma = max(ma, st[idx].v[st[idx].v.size() - 1]);
      int idx1 = v[l][lb];
      int range = l + st[idx1].v.size() - 1;
      l = range + 1;
    }
    cout << (ans > k ? "0\n" : "1\n");
  }
}
int32_t main(){
  ios::sync_with_stdio(0); cin.tie(0);
  int t = 1; //cin >> t;
  for(int i=1; i<=t; i++) solve(i);
}

Compilation message

sortbooks.cpp: In function 'void bu(int, int, int)':
sortbooks.cpp:32:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |   while(!(lptr == st[2*idx + 1].v.size() && rptr == st[2*idx + 2].v.size())) {
      |           ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:32:50: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |   while(!(lptr == st[2*idx + 1].v.size() && rptr == st[2*idx + 2].v.size())) {
      |                                             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:33:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     if(lptr == st[2*idx+1].v.size()) {
      |        ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:38:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     else if(rptr == st[2*idx+2].v.size()) {
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 117620 KB Output is correct
2 Correct 55 ms 117696 KB Output is correct
3 Correct 62 ms 117676 KB Output is correct
4 Correct 55 ms 117628 KB Output is correct
5 Correct 54 ms 117708 KB Output is correct
6 Correct 78 ms 117776 KB Output is correct
7 Correct 74 ms 117680 KB Output is correct
8 Correct 71 ms 117780 KB Output is correct
9 Correct 62 ms 117728 KB Output is correct
10 Correct 54 ms 117708 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 117620 KB Output is correct
2 Correct 55 ms 117696 KB Output is correct
3 Correct 62 ms 117676 KB Output is correct
4 Correct 55 ms 117628 KB Output is correct
5 Correct 54 ms 117708 KB Output is correct
6 Correct 78 ms 117776 KB Output is correct
7 Correct 74 ms 117680 KB Output is correct
8 Correct 71 ms 117780 KB Output is correct
9 Correct 62 ms 117728 KB Output is correct
10 Correct 54 ms 117708 KB Output is correct
11 Correct 78 ms 117904 KB Output is correct
12 Correct 76 ms 118360 KB Output is correct
13 Correct 61 ms 118256 KB Output is correct
14 Correct 61 ms 118348 KB Output is correct
15 Correct 62 ms 118300 KB Output is correct
16 Correct 87 ms 118268 KB Output is correct
17 Correct 73 ms 118268 KB Output is correct
18 Correct 66 ms 118352 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 527 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 398 ms 132628 KB Output is correct
2 Correct 310 ms 132684 KB Output is correct
3 Correct 372 ms 132728 KB Output is correct
4 Correct 357 ms 132800 KB Output is correct
5 Correct 359 ms 132784 KB Output is correct
6 Correct 250 ms 132620 KB Output is correct
7 Correct 263 ms 132708 KB Output is correct
8 Correct 269 ms 132692 KB Output is correct
9 Correct 113 ms 117956 KB Output is correct
10 Correct 307 ms 132768 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 117620 KB Output is correct
2 Correct 55 ms 117696 KB Output is correct
3 Correct 62 ms 117676 KB Output is correct
4 Correct 55 ms 117628 KB Output is correct
5 Correct 54 ms 117708 KB Output is correct
6 Correct 78 ms 117776 KB Output is correct
7 Correct 74 ms 117680 KB Output is correct
8 Correct 71 ms 117780 KB Output is correct
9 Correct 62 ms 117728 KB Output is correct
10 Correct 54 ms 117708 KB Output is correct
11 Correct 78 ms 117904 KB Output is correct
12 Correct 76 ms 118360 KB Output is correct
13 Correct 61 ms 118256 KB Output is correct
14 Correct 61 ms 118348 KB Output is correct
15 Correct 62 ms 118300 KB Output is correct
16 Correct 87 ms 118268 KB Output is correct
17 Correct 73 ms 118268 KB Output is correct
18 Correct 66 ms 118352 KB Output is correct
19 Correct 828 ms 148564 KB Output is correct
20 Correct 878 ms 148420 KB Output is correct
21 Correct 593 ms 148364 KB Output is correct
22 Correct 575 ms 148380 KB Output is correct
23 Correct 648 ms 148480 KB Output is correct
24 Correct 545 ms 148424 KB Output is correct
25 Correct 561 ms 148452 KB Output is correct
26 Correct 811 ms 148572 KB Output is correct
27 Correct 823 ms 148448 KB Output is correct
28 Correct 819 ms 148348 KB Output is correct
29 Correct 816 ms 148612 KB Output is correct
30 Correct 796 ms 148516 KB Output is correct
31 Correct 822 ms 148416 KB Output is correct
32 Correct 853 ms 148420 KB Output is correct
33 Correct 847 ms 148444 KB Output is correct
34 Correct 525 ms 148436 KB Output is correct
35 Correct 506 ms 148380 KB Output is correct
36 Correct 497 ms 148532 KB Output is correct
37 Correct 503 ms 148312 KB Output is correct
38 Correct 532 ms 148388 KB Output is correct
39 Correct 708 ms 148344 KB Output is correct
40 Correct 439 ms 137684 KB Output is correct
41 Correct 686 ms 148372 KB Output is correct

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 117620 KB Output is correct
2 Correct 55 ms 117696 KB Output is correct
3 Correct 62 ms 117676 KB Output is correct
4 Correct 55 ms 117628 KB Output is correct
5 Correct 54 ms 117708 KB Output is correct
6 Correct 78 ms 117776 KB Output is correct
7 Correct 74 ms 117680 KB Output is correct
8 Correct 71 ms 117780 KB Output is correct
9 Correct 62 ms 117728 KB Output is correct
10 Correct 54 ms 117708 KB Output is correct
11 Correct 78 ms 117904 KB Output is correct
12 Correct 76 ms 118360 KB Output is correct
13 Correct 61 ms 118256 KB Output is correct
14 Correct 61 ms 118348 KB Output is correct
15 Correct 62 ms 118300 KB Output is correct
16 Correct 87 ms 118268 KB Output is correct
17 Correct 73 ms 118268 KB Output is correct
18 Correct 66 ms 118352 KB Output is correct
19 Runtime error 527 ms 262144 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -