oj.uz

Submission #923623

# Submission time Handle Problem Language Result Execution time Memory
923623 2024-02-07T13:42:04 Z shenfe1 Hidden Sequence (info1cup18_hidden) C++17
100 / 100
 5 ms 696 KB 
#include <bits/stdc++.h>
#include "grader.h"
 
#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
 
using namespace std;
 
#define pb push_back

vector<int> findSequence(int n){
  int L=(n/2)+1;
  int c1=-1,c0=-1;
  for(int i=1;i<=L;i++){
    vector<int> v;
    for(int j=1;j<=i;j++)v.pb(1);
    if(!isSubsequence(v)){
      c1=i-1;
      c0=n-c1;
      break;
    }
  }
  for(int i=1;i<=L;i++){
    vector<int> v;
    for(int j=1;j<=i;j++)v.pb(0);
    if(!isSubsequence(v)){
      c0=i-1;
      c1=n-c0;
      break;
    }
  }
  vector<int> ans;
  if(c1<=0){
    for(int i=1;i<=n;i++)ans.pb(0);
    return ans;
  }
  if(c0<=0){
    for(int i=1;i<=n;i++)ans.pb(1);
    return ans;
  }
  int cnt0=0,cnt1=0;
  for(int i=1;i<=n;i++){
    if(!c1){
      ans.pb(0);
      c0--;
      continue;
    }
    if(!c0){
      ans.pb(1);
      c1--;
      continue;
    }
    vector<int> v;
    if(cnt0+c1<=cnt1+c0){
      for(int i=1;i<=cnt0;i++)v.pb(0);
      v.pb(0);
      for(int i=1;i<=c1;i++)v.pb(1);
      if(isSubsequence(v)){
        ans.pb(0);
        cnt0++;
        c0--;
      }
      else{
        ans.pb(1);
        cnt1++;
        c1--;
      }
    }
    else{
      for(int i=1;i<=cnt1;i++)v.pb(1);
      v.pb(1);
      for(int i=1;i<=c0;i++)v.pb(0);
      if(!isSubsequence(v)){
        ans.pb(0);
        cnt0++;
        c0--;
      }
      else{
        ans.pb(1);
        cnt1++;
        c1--;
      }
    }
  }
  assert(c0+c1==0);
  return ans;
}

Compilation message

grader.cpp: In function 'int main()':
grader.cpp:28:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   28 |     fprintf (fifo_out, "%d\n", ans.size ());
      |                         ~^     ~~~~~~~~~~~
      |                          |              |
      |                          int            std::vector<int>::size_type {aka long unsigned int}
      |                         %ld
grader.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for (int i=0; i<ans.size () && i < N; i++)
      |                   ~^~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct: Maximum length of a query = 5
2 Correct 1 ms 344 KB Output is correct: Maximum length of a query = 6
3 Correct 0 ms 344 KB Output is correct: Maximum length of a query = 5
4 Correct 1 ms 344 KB Output is correct: Maximum length of a query = 5
5 Correct 0 ms 344 KB Output is correct: Maximum length of a query = 4

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 692 KB Output is correct: Maximum length of a query = 83
2 Correct 5 ms 688 KB Output is correct: Maximum length of a query = 90
3 Correct 4 ms 428 KB Output is correct: Maximum length of a query = 96
4 Correct 3 ms 432 KB Output is correct: Maximum length of a query = 77
5 Correct 3 ms 440 KB Output is correct: Maximum length of a query = 95
6 Correct 3 ms 696 KB Output is correct: Maximum length of a query = 87
7 Correct 4 ms 440 KB Output is correct: Maximum length of a query = 97
8 Correct 3 ms 436 KB Output is correct: Maximum length of a query = 83
9 Correct 4 ms 692 KB Output is correct: Maximum length of a query = 101
10 Correct 4 ms 436 KB Output is correct: Maximum length of a query = 100
11 Correct 4 ms 432 KB Output is correct: Maximum length of a query = 96
12 Correct 3 ms 436 KB Output is correct: Maximum length of a query = 100
13 Correct 5 ms 432 KB Output is correct: Maximum length of a query = 101