oj.uz

Submission #295058

# Submission time Handle Problem Language Result Execution time Memory
295058 2020-09-09T12:56:03 Z BThero Broken Device (JOI17_broken_device) C++17
0 / 100
 61 ms 3320 KB 
// chrono::system_clock::now().time_since_epoch().count()
#include "Annalib.h"
#include<bits/stdc++.h>

#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fi first
#define se second
#define all(x) (x).begin(), (x).end()
#define debug(x) cerr << #x << " = " << x << endl;

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

namespace {
  int seed[] = {136, 241, 13, 4, 59};
  int n, k, bad_pos[45];
  int is_bad[205];
  int perm[205];
  ll msg;
  
  int bit(ll x, int p) {
    if (p > 60) return 0;
    return (x >> p) & 1;
  }
  
  void set(int p, int x) {
    if (p < n) {
      Set(p, x);
    }
  }
  
  void solve() {
    fill(is_bad, is_bad + n, 0);
  
    for (int i = 0; i < k; ++i) {
      is_bad[bad_pos[i]] = 1;
    }
    
    for (int i = 0; i < n; ++i) {
      perm[i] = i;
    }
    
    mt19937 rnd(seed[0]);
    
    for (int i = 1; i < n; ++i) {
      swap(perm[i], perm[rnd() % i]);
    }
    
    int p = 0;
    
    for (int i = 0; i < n; i += 2) {
      if (is_bad[perm[i]] || is_bad[perm[i + 1]]) {
        set(perm[i], 0);
        set(perm[i + 1], 0);
      }
      else {
        set(perm[i], 1);
        set(perm[i + 1], bit(msg, p++));
      }
    }
  }
};

void Anna( int N, long long X, int K, int P[] ){
  n = N;
  msg = X;
  k = K;
  
  for (int i = 0; i < k; ++i) {
    bad_pos[i] = P[i];
  }

  solve();
}

// chrono::system_clock::now().time_since_epoch().count()
#include "Brunolib.h"
#include<bits/stdc++.h>

#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fi first
#define se second
#define all(x) (x).begin(), (x).end()
#define debug(x) cerr << #x << " = " << x << endl;

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

namespace {
  int seed[] = {136, 241, 13, 4, 59};
  int n, arr[205], perm[205];
  
  ll solve() {
    ll ret = 0;
    
    for (int i = 0; i < n; ++i) {
      perm[i] = i;
    }
    
    mt19937 rnd(perm[0]);
    
    for (int i = 1; i < n; ++i) {
      swap(perm[i], perm[rnd() % i]);
    }
    
    int p = 0;
    
    for (int i = 0; i < n; i += 2) {
      if (arr[perm[i]] == 0) {
        continue;
      }
      
      if (arr[perm[i + 1]]) {
        ret += (1ll << p);
      }
      
      p++;
    }
    
    return ret;
  }
};

long long Bruno( int N, int A[] ){
  n = N;
  
  for (int i = 0; i < n; ++i) {
    arr[i] = A[i];
  }

  return solve();
}

Compilation message

Bruno.cpp:19:7: warning: '{anonymous}::seed' defined but not used [-Wunused-variable]
   19 |   int seed[] = {136, 241, 13, 4, 59};
      |       ^~~~

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Partially correct 57 ms 3064 KB Output isn't correct - L* = 0
2 Partially correct 60 ms 3056 KB Output isn't correct - L* = 0
3 Partially correct 59 ms 3072 KB Output isn't correct - L* = 0
4 Partially correct 57 ms 3072 KB Output isn't correct - L* = 0
5 Partially correct 60 ms 3056 KB Output isn't correct - L* = 0
6 Partially correct 61 ms 3072 KB Output isn't correct - L* = 0
7 Partially correct 57 ms 3072 KB Output isn't correct - L* = 0
8 Partially correct 59 ms 3072 KB Output isn't correct - L* = 0
9 Partially correct 59 ms 3320 KB Output isn't correct - L* = 0
10 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0
11 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0
12 Partially correct 60 ms 3056 KB Output isn't correct - L* = 0
13 Partially correct 57 ms 3056 KB Output isn't correct - L* = 0
14 Partially correct 57 ms 3072 KB Output isn't correct - L* = 0
15 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0
16 Partially correct 59 ms 3072 KB Output isn't correct - L* = 0
17 Partially correct 60 ms 3056 KB Output isn't correct - L* = 0
18 Partially correct 57 ms 3072 KB Output isn't correct - L* = 0
19 Partially correct 61 ms 3072 KB Output isn't correct - L* = 0
20 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0
21 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0
22 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0
23 Partially correct 61 ms 3072 KB Output isn't correct - L* = 0
24 Partially correct 59 ms 3064 KB Output isn't correct - L* = 0
25 Partially correct 59 ms 3072 KB Output isn't correct - L* = 0
26 Partially correct 61 ms 3056 KB Output isn't correct - L* = 0
27 Partially correct 57 ms 3056 KB Output isn't correct - L* = 0
28 Partially correct 57 ms 3088 KB Output isn't correct - L* = 0
29 Partially correct 57 ms 3072 KB Output isn't correct - L* = 0
30 Partially correct 60 ms 3064 KB Output isn't correct - L* = 0
31 Partially correct 60 ms 3056 KB Output isn't correct - L* = 0
32 Partially correct 57 ms 3056 KB Output isn't correct - L* = 0
33 Partially correct 59 ms 3072 KB Output isn't correct - L* = 0
34 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0
35 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0
36 Partially correct 60 ms 3072 KB Output isn't correct - L* = 0
37 Partially correct 60 ms 3056 KB Output isn't correct - L* = 0
38 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0
39 Partially correct 60 ms 3056 KB Output isn't correct - L* = 0
40 Partially correct 59 ms 3056 KB Output isn't correct - L* = 0