oj.uz

Submission #44052

# Submission time Handle Problem Language Result Execution time Memory
44052 2018-03-29T12:59:31 Z wxh010910 Library (JOI18_library) C++17
100 / 100
 433 ms 844 KB 
#include "library.h"

#include <bits/stdc++.h>

using namespace std;

#define X first
#define Y second
#define mp make_pair
#define pb push_back
#define Debug(...) fprintf(stderr, __VA_ARGS__)

typedef long long LL;
typedef long double LD;
typedef unsigned int uint;
typedef pair <int, int> pii;
typedef unsigned long long uLL;

template <typename T> inline void Read(T &x) {
  char c = getchar();
  bool f = false;
  for (x = 0; !isdigit(c); c = getchar()) {
    if (c == '-') {
      f = true;
    }
  }
  for (; isdigit(c); c = getchar()) {
    x = x * 10 + c - '0';
  }
  if (f) {
    x = -x;
  }
}

template <typename T> inline bool CheckMax(T &a, const T &b) {
  return a < b ? a = b, true : false;
}

template <typename T> inline bool CheckMin(T &a, const T &b) {
  return a > b ? a = b, true : false;
}

const int N = 1005;

vector <int> qry, ans;
int n, val[N << 2];
set <int> adj[N];
bool vis[N];

inline void Build(int x, int l, int r) {
  if (l == r) {
    val[x] = 1;
    return ;
  }
  for (int i = 1; i <= n; ++i) {
    qry[i - 1] = i >= l && i <= r;
  }
  val[x] = Query(qry);
  int mid = l + r >> 1;
  Build(x << 1, l, mid), Build(x << 1 | 1, mid + 1, r);
}

inline void Query(int x, int l, int r, int v) {
  if (r <= v || adj[v].size() == 2) {
    return ;
  }
  if (v == l && v == r) {
    return ;
  }
  if (v >= l && v <= r) {
    for (int i = 1; i <= n; ++i) {
      qry[i - 1] = i >= l && i <= r && i != v;
    }
    if (Query(qry) + 1 == val[x]) {
      return ;
    }
  } else {
    for (int i = 1; i <= n; ++i) {
      qry[i - 1] = (i >= l && i <= r) || (i == v);
    }
    if (Query(qry) == val[x] + 1) {
      return ;
    }
  }
  if (l == r) {
    adj[v].insert(l), adj[l].insert(v);
    return ;
  }
  int mid = l + r >> 1;
  Query(x << 1, l, mid, v), Query(x << 1 | 1, mid + 1, r, v);
}

inline void DFS(int x) {
  ans.pb(x), vis[x] = true;
  for (auto y : adj[x]) {
    if (!vis[y]) {
      DFS(y);
    }
  }
}

void Solve(int N) {
  qry.resize(N), n = N, Build(1, 1, n);
  if (n == 1) {
    Answer(vector <int> {1});
    return ;
  }
  for (int i = 1; i <= n; ++i) {
    Query(1, 1, n, i);
  }
  for (int i = 1; i <= n; ++i) {
    if (adj[i].size() == 1) {
      DFS(i), Answer(ans);
      return ;
    }
  }
}

Compilation message

library.cpp: In function 'void Build(int, int, int)':
library.cpp:59:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid = l + r >> 1;
             ~~^~~
library.cpp: In function 'void Query(int, int, int, int)':
library.cpp:89:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid = l + r >> 1;
             ~~^~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 252 KB Output is correct
2 Correct 39 ms 436 KB Output is correct
3 Correct 40 ms 516 KB Output is correct
4 Correct 29 ms 664 KB Output is correct
5 Correct 41 ms 664 KB Output is correct
6 Correct 46 ms 664 KB Output is correct
7 Correct 41 ms 664 KB Output is correct
8 Correct 41 ms 664 KB Output is correct
9 Correct 43 ms 664 KB Output is correct
10 Correct 27 ms 700 KB Output is correct
11 Correct 1 ms 700 KB Output is correct
12 Correct 2 ms 700 KB Output is correct
13 Correct 2 ms 700 KB Output is correct
14 Correct 2 ms 700 KB Output is correct
15 Correct 3 ms 700 KB Output is correct
16 Correct 5 ms 700 KB Output is correct

Subtask #2
81.0 / 81.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 252 KB Output is correct
2 Correct 39 ms 436 KB Output is correct
3 Correct 40 ms 516 KB Output is correct
4 Correct 29 ms 664 KB Output is correct
5 Correct 41 ms 664 KB Output is correct
6 Correct 46 ms 664 KB Output is correct
7 Correct 41 ms 664 KB Output is correct
8 Correct 41 ms 664 KB Output is correct
9 Correct 43 ms 664 KB Output is correct
10 Correct 27 ms 700 KB Output is correct
11 Correct 1 ms 700 KB Output is correct
12 Correct 2 ms 700 KB Output is correct
13 Correct 2 ms 700 KB Output is correct
14 Correct 2 ms 700 KB Output is correct
15 Correct 3 ms 700 KB Output is correct
16 Correct 5 ms 700 KB Output is correct
17 Correct 418 ms 800 KB Output is correct
18 Correct 420 ms 844 KB Output is correct
19 Correct 433 ms 844 KB Output is correct
20 Correct 401 ms 844 KB Output is correct
21 Correct 360 ms 844 KB Output is correct
22 Correct 430 ms 844 KB Output is correct
23 Correct 419 ms 844 KB Output is correct
24 Correct 148 ms 844 KB Output is correct
25 Correct 419 ms 844 KB Output is correct
26 Correct 362 ms 844 KB Output is correct
27 Correct 145 ms 844 KB Output is correct
28 Correct 296 ms 844 KB Output is correct
29 Correct 297 ms 844 KB Output is correct
30 Correct 297 ms 844 KB Output is correct