oj.uz

Submission #643394

# Submission time Handle Problem Language Result Execution time Memory
643394 2022-09-22T01:24:25 Z devariaota Martian DNA (BOI18_dna) C++17
68 / 100
 2000 ms 21132 KB 
#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
const ll MOD=1e9+7;
using namespace std;
ll N,M,K,a[200005];
vector <ll> vec[200005];
vector <pair<ll,ll> > pr[200005];
int main(){
  cin>>N>>M>>K;
  for(int i=1;i<=N;i++){
    cin>>a[i];
    vec[a[i]].push_back(i);
  }
  bool ok=true;
  for(int i=1;i<=K;i++){
    ll x,y;
    cin>>x>>y;
//    cout<<vec[x].size()<<' '<<y<<endl;
    if(vec[x].size()<y){
      ok=false;
    }
    else{
      for(int j=y-1;j<vec[x].size();j++){
        pr[i].push_back({vec[x][j-(y-1)],vec[x][j]});
      }
    }
  }
  if(!ok){
    cout<<"impossible"<<endl;
    return 0;
  }
  ll minn=1e18;
  for(int i=1;i<=N;i++){
    ll maks=0;
    bool ok=true;
    for(int j=1;j<=K;j++){
      ll l=0;
      ll r=pr[j].size()-1;
      ll ans=-1;
      while(l<=r){
        ll m=(l+r)/2;
        if(pr[j][m].fi>=i){
          ans=m;
          r=m-1;
        }
        else{
          l=m+1;
        }
      }
      if(ans==-1){
        ok=false;
        break;
      }
      maks=max(maks,pr[j][ans].se);
    }
    if(ok){
      minn=min(minn,maks-i+1);
    }
  }
  cout<<minn<<endl;
}

Compilation message

dna.cpp: In function 'int main()':
dna.cpp:22:21: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   22 |     if(vec[x].size()<y){
      |        ~~~~~~~~~~~~~^~
dna.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |       for(int j=y-1;j<vec[x].size();j++){
      |                     ~^~~~~~~~~~~~~~

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 5 ms 9696 KB Output is correct
5 Correct 5 ms 9700 KB Output is correct
6 Correct 5 ms 9644 KB Output is correct
7 Correct 5 ms 9704 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9812 KB Output is correct
2 Correct 6 ms 9840 KB Output is correct
3 Correct 6 ms 9812 KB Output is correct
4 Correct 6 ms 9840 KB Output is correct
5 Correct 7 ms 9812 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Correct 5 ms 9684 KB Output is correct
9 Correct 6 ms 9684 KB Output is correct
10 Correct 6 ms 9684 KB Output is correct
11 Correct 5 ms 9684 KB Output is correct
12 Correct 5 ms 9684 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9636 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 14980 KB Output is correct
2 Correct 51 ms 17148 KB Output is correct
3 Correct 78 ms 16140 KB Output is correct
4 Correct 68 ms 15540 KB Output is correct
5 Correct 72 ms 15316 KB Output is correct
6 Correct 33 ms 13704 KB Output is correct
7 Correct 39 ms 13900 KB Output is correct
8 Correct 86 ms 18692 KB Output is correct
9 Correct 63 ms 14616 KB Output is correct
10 Correct 82 ms 15660 KB Output is correct
11 Correct 6 ms 9828 KB Output is correct
12 Correct 7 ms 9812 KB Output is correct
13 Correct 6 ms 9812 KB Output is correct
14 Correct 7 ms 9812 KB Output is correct
15 Correct 6 ms 9712 KB Output is correct
16 Correct 7 ms 9860 KB Output is correct
17 Correct 5 ms 9684 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 5 ms 9708 KB Output is correct
21 Correct 5 ms 9684 KB Output is correct
22 Correct 5 ms 9684 KB Output is correct
23 Correct 5 ms 9684 KB Output is correct
24 Correct 5 ms 9684 KB Output is correct
25 Correct 5 ms 9632 KB Output is correct

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2065 ms 21132 KB Time limit exceeded
2 Halted 0 ms 0 KB -