oj.uz

Submission #96496

# Submission time Handle Problem Language Result Execution time Memory
96496 2019-02-09T18:02:49 Z KLPP DEL13 (info1cup18_del13) C++14
15 / 100
 500 ms 1656 KB 
#include<bits/stdc++.h>
 
using namespace std;
int n;
bool done;
bool possible[300000];
int par[1000000];
int mve[1000000];
void DFS(int mask){
	if(possible[mask])return;
	possible[mask]=true;
	int arr[n];
	for(int i=0;i<n;i++){
		arr[i]=((mask&(1<<i))>0);
	}
	int prev[n];
	int next[n];
	prev[0]=-1;
	for(int i=1;i<n;i++){
		if(arr[i-1]==1)prev[i]=prev[i-1];
		else prev[i]=i-1;
	}
	next[n-1]=n;
	for(int i=n-2;i>-1;i--){
		if(arr[i+1]==1)next[i]=next[i+1];
		else next[i]=i+1;
	}
	/*for(int i=0;i<n;i++){
		cout<<prev[i]<<" "<<next[i]<<endl;
	}*/
	for(int i=0;i<n;i++){
		if(arr[i]==0 && prev[i]!=-1 && next[i]!=n){
			int less=(1<<prev[i])+(1<<next[i]);
			if(!possible[mask+less]){
				par[mask+less]=mask;
				mve[mask+less]=i;
				DFS(mask+less);
			}
		}
	}
}

int main(){
	int t;
	cin>>t;
	done=false;
	while(t--){
		cin>>n;
		if(!done){
			for(int i=0;i<(1<<n);i++)possible[i]=false;
			DFS(0);
			/*for(int mask=0;mask<(1<<n);mask++){
				for(int i=0;i<n;i++)cout<<((mask&(1<<i))>0);
				cout<<" "<<possible[mask]<<endl;
			}*/
		}
		int l;
		cin>>l;
		int MSK=(1<<n)-1;
		for(int i=0;i<l;i++){
			int x;
			cin>>x;
			x--;
			MSK-=(1<<x);
		}
		if(possible[MSK]){
			vector<int> seq;
			while(MSK!=0){
				seq.push_back(mve[MSK]);
				MSK=par[MSK];
			}
			reverse(seq.begin(),seq.end());
			cout<<seq.size()<<endl;
			for(int j=0;j<seq.size();j++)cout<<seq[j]+1<<" ";
			cout<<endl;
		}
		else cout<<-1<<endl;
	}	
	return 0;
}

Compilation message

del13.cpp: In function 'int main()':
del13.cpp:74:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int j=0;j<seq.size();j++)cout<<seq[j]+1<<" ";
                ~^~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 380 KB Output is correct

Subtask #2
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 380 KB Output is correct
3 Execution timed out 1083 ms 1144 KB Time limit exceeded
4 Execution timed out 1076 ms 1656 KB Time limit exceeded

Subtask #3
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)

Subtask #4
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 380 KB Output is correct
3 Execution timed out 1083 ms 1144 KB Time limit exceeded
4 Execution timed out 1076 ms 1656 KB Time limit exceeded
5 Runtime error 3 ms 504 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Runtime error 3 ms 504 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)

Subtask #5
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 380 KB Output is correct
3 Execution timed out 1083 ms 1144 KB Time limit exceeded
4 Execution timed out 1076 ms 1656 KB Time limit exceeded
5 Runtime error 3 ms 504 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Runtime error 3 ms 504 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Runtime error 3 ms 1148 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Runtime error 3 ms 1016 KB Execution killed with signal 11 (could be triggered by violating memory limits)
10 Runtime error 4 ms 504 KB Execution killed with signal 11 (could be triggered by violating memory limits)
11 Runtime error 3 ms 760 KB Execution killed with signal 11 (could be triggered by violating memory limits)