oj.uz

Submission #260705

# Submission time Handle Problem Language Result Execution time Memory
260705 2020-08-10T18:37:04 Z fadi57 Long Mansion (JOI17_long_mansion) C++14
10 / 100
 3000 ms 23700 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
#define ll long long

const int mx=500020;
int c[mx];
int b[mx];

vector<int>keys[mx];
int mxright[mx];
int mxleft[mx];
int n,m;
int leftt[mx];int rightt[mx];
int last[mx];
int canr(int i){
    if(leftt[mxright[i]]>=mxleft[i]&&leftt[mxright[i]]!=-1&&mxright[i]<n){
       return 1;
    }return 0;
}int canl(int i){
    if(rightt[mxleft[i]-1]<=mxright[i]&&rightt[mxleft[i]-1]!=-1&&mxleft[i]>1){
       return 1;
    }return 0;
}
int main()
{
  
  cin>>n;
  for(ll i=1;i<n;i++){
      cin>>c[i];
  }
  
  for(int i=1;i<=n;i++){
      cin>>b[i];
      for(int j=0;j<b[i];j++){
          ll x;
          cin>>x;
          keys[i].push_back(x);
      }
  }
  
    memset(last ,-1 ,sizeof last);
    
    for(int i=1;i<n;i++){
        for(int j:keys[i]){
            last[j]=i;
        }
        leftt[i]=last[c[i]];
    } 
    memset(last ,-1 ,sizeof last);
    
      for(int i=n-1;i>=1;i--){
        for(int j:keys[i+1]){
            last[j]=i+1;
        }
       rightt[i]=last[c[i]];
    }
    for(int i=1;i<=n;i++){
        
      int myr=i;
        int myl=i; mxleft[i]=i;  mxright[i]=i;
        while(1){
          int xx=0;ll xo=0;
       if(canl(i)){
              xo=1;
             
             
              myl--;  mxleft[i]=myl;
               mxleft[i]=min(mxleft[i],mxleft[mxleft[i]]);
               mxright[i]=max(mxright[i],mxright[mxleft[i]]);
        
          }else if(canr(i)){
              xx=1;
              
              myr++;
            mxright[i]=myr;
             
          }else {break;}
           
        } 
     
  }
  int q;cin>>q;
  for(int i=0;i<q;i++){
      int x,y;cin>>x>>y;
     //cout<<mxleft[x]<<" "<<mxright[x];
     cout<<(mxleft[x] <= y && y <= mxright[x] ? "YES" : "NO") << '\n';
     
  }

}

Compilation message

long_mansion.cpp: In function 'int main()':
long_mansion.cpp:64:15: warning: variable 'xx' set but not used [-Wunused-but-set-variable]
           int xx=0;ll xo=0;
               ^~
long_mansion.cpp:64:23: warning: variable 'xo' set but not used [-Wunused-but-set-variable]
           int xx=0;ll xo=0;
                       ^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 14208 KB Output is correct
2 Correct 30 ms 14336 KB Output is correct
3 Correct 41 ms 14464 KB Output is correct
4 Correct 27 ms 14208 KB Output is correct
5 Correct 28 ms 14336 KB Output is correct
6 Correct 27 ms 14208 KB Output is correct
7 Correct 27 ms 14208 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 14208 KB Output is correct
2 Correct 30 ms 14336 KB Output is correct
3 Correct 41 ms 14464 KB Output is correct
4 Correct 27 ms 14208 KB Output is correct
5 Correct 28 ms 14336 KB Output is correct
6 Correct 27 ms 14208 KB Output is correct
7 Correct 27 ms 14208 KB Output is correct
8 Correct 1473 ms 17912 KB Output is correct
9 Correct 1500 ms 17732 KB Output is correct
10 Correct 1540 ms 17924 KB Output is correct
11 Correct 1508 ms 18036 KB Output is correct
12 Correct 1435 ms 17272 KB Output is correct
13 Correct 1457 ms 17912 KB Output is correct
14 Correct 1481 ms 18016 KB Output is correct
15 Correct 1495 ms 17980 KB Output is correct
16 Correct 1451 ms 17656 KB Output is correct
17 Correct 1520 ms 17900 KB Output is correct
18 Correct 1478 ms 17820 KB Output is correct
19 Correct 1467 ms 17912 KB Output is correct
20 Correct 1461 ms 17912 KB Output is correct
21 Correct 1452 ms 17768 KB Output is correct
22 Correct 1523 ms 17880 KB Output is correct
23 Correct 1456 ms 17656 KB Output is correct
24 Correct 1454 ms 17640 KB Output is correct
25 Correct 1469 ms 17824 KB Output is correct
26 Correct 1464 ms 17724 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2627 ms 23700 KB Output is correct
2 Execution timed out 3061 ms 21548 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 14208 KB Output is correct
2 Correct 30 ms 14336 KB Output is correct
3 Correct 41 ms 14464 KB Output is correct
4 Correct 27 ms 14208 KB Output is correct
5 Correct 28 ms 14336 KB Output is correct
6 Correct 27 ms 14208 KB Output is correct
7 Correct 27 ms 14208 KB Output is correct
8 Correct 1473 ms 17912 KB Output is correct
9 Correct 1500 ms 17732 KB Output is correct
10 Correct 1540 ms 17924 KB Output is correct
11 Correct 1508 ms 18036 KB Output is correct
12 Correct 1435 ms 17272 KB Output is correct
13 Correct 1457 ms 17912 KB Output is correct
14 Correct 1481 ms 18016 KB Output is correct
15 Correct 1495 ms 17980 KB Output is correct
16 Correct 1451 ms 17656 KB Output is correct
17 Correct 1520 ms 17900 KB Output is correct
18 Correct 1478 ms 17820 KB Output is correct
19 Correct 1467 ms 17912 KB Output is correct
20 Correct 1461 ms 17912 KB Output is correct
21 Correct 1452 ms 17768 KB Output is correct
22 Correct 1523 ms 17880 KB Output is correct
23 Correct 1456 ms 17656 KB Output is correct
24 Correct 1454 ms 17640 KB Output is correct
25 Correct 1469 ms 17824 KB Output is correct
26 Correct 1464 ms 17724 KB Output is correct
27 Correct 2627 ms 23700 KB Output is correct
28 Execution timed out 3061 ms 21548 KB Time limit exceeded
29 Halted 0 ms 0 KB -