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Submission #288119

# Submission time Handle Problem Language Result Execution time Memory
288119 2020-09-01T08:52:23 Z dvdg6566 "The Lyuboyn" code (IZhO19_lyuboyn) C++14
52 / 100
 72 ms 6512 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pi;
typedef vector<int> vi;
typedef vector<pi> vpi;
#define pb emplace_back
#define mp make_pair
#define f first
#define s second
#define SZ(x) (int)x.size()
#define ALL(x) x.begin(),x.end()
#define lb lower_bound
const int MAXN=1001000;
const ll MOD=998244353;

int N,K,T;
string S;

void tobin(int y,int len){
	string x;
	while(y){
		x+=('0' + y%2);
		y/=2;
	}
	while(SZ(x) < len)x+='0';
	reverse(ALL(x));
	cout<<x;
}

vector<int> generate(int N,int K){
	// cerr<<N<<' '<<K<<'\n';
	int mod=(1<<(N-K+1));
	vi A;
	A.resize((1<<N),0);
	ll alen=(K-1);
	int ind=0;

	int backf = min(K-1, N-K+1);
	int frontf = K-backf;
	// cerr<<backf<<' '<<frontf<<'\n';
	vi B;
	if(frontf > 1){
		B = generate(K-1, frontf);
		// for(auto i:B)cerr<<i<<' ';cerr<<'\n';
	}
	int ind2=0;

	for(int i=1;i<=(1<<alen);++i){
		for(int j=0;j<mod-1;++j){
			
			A[ind] += ((1<<alen) - 1) * mod;
			++ind;
			// A.pb(A.back() ^ ((1<<alen)-1));
		}
		if(frontf == 1) A[ind] += (i&(-i))*mod;
		else{
			A[ind] += B[ind2]*mod;
			++ind2;
		}
		++ind;
		// flip A back
		// if(SZ(A) < (1<<N))A.pb(A.back() ^ (i&(-i)));
	}

	// for(auto i:A)cerr<<i<<' ';cerr<<'\n';
	ind=0;
	for(int i=1;i<=(1<<alen);++i){
		for(int j=1;j<mod;++j){
			// B.pb(B.back() ^ (j&(-j)));
			A[ind] += (j&(-j));
			++ind;
		}
		A[ind] += (1<<backf)-1;
		++ind;
		// flip A back
		// if(SZ(B) < (1<<N))B.pb(B.back() ^ ((1<<(K-1))-1));
	}
	// for(auto i:A)cerr<<i<<' ';cerr<<'\n';
	return A;
}

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>N>>K>>T>>S;
	if(K%2==0){
		cout<<-1;
		return 0;
	}

	ll v=0;ll k=1;
	while(SZ(S)){
		if(S.back() == '1')v+=k;
		k*=2;
		S.pop_back();
	}

	vi A = generate(N,K);

	cout<<(1<<N)<<'\n';
	tobin(v,N);cout<<'\n';
	for(int i=0;i<((1<<N)-1);++i){
		v ^= A[i];
		tobin(v,N);cout<<'\n';
	}

	// for(int i=0;i<SZ(A);++i){
	// 	// if(flip&&i%2){
	// 	// 	A[i]=((1<<(K-1))-1)^A[i];
	// 	// 	B[i]=((1<<(N-K+1))-1)^B[i];
	// 	// }
	// 	tobin(B[i],(N-K+1));
	// 	tobin(A[i],K-1);
	// 	cout<<'\n';
	// }
}

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Ok

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Ok

Subtask #3
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Ok
2 Correct 0 ms 384 KB Ok
3 Correct 1 ms 384 KB Ok
4 Correct 0 ms 384 KB Ok
5 Correct 0 ms 256 KB Ok
6 Correct 1 ms 288 KB Ok
7 Correct 0 ms 384 KB Ok
8 Correct 0 ms 384 KB Ok

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 6392 KB Ok
2 Correct 34 ms 3192 KB Ok
3 Correct 1 ms 384 KB Ok
4 Correct 1 ms 384 KB Ok
5 Correct 0 ms 384 KB Ok

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Ok
2 Correct 2 ms 512 KB Ok
3 Correct 34 ms 3192 KB Ok
4 Correct 16 ms 1664 KB Ok
5 Correct 1 ms 384 KB Ok
6 Correct 1 ms 384 KB Ok
7 Correct 7 ms 960 KB Ok
8 Correct 0 ms 384 KB Ok

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 6392 KB Ok
2 Correct 71 ms 6392 KB Ok
3 Correct 70 ms 6392 KB Ok
4 Correct 34 ms 3192 KB Ok
5 Correct 34 ms 3192 KB Ok
6 Correct 16 ms 1664 KB Ok
7 Correct 16 ms 1664 KB Ok
8 Correct 7 ms 1024 KB Ok
9 Correct 6 ms 1024 KB Ok
10 Correct 3 ms 640 KB Ok
11 Correct 1 ms 384 KB Ok
12 Correct 1 ms 384 KB Ok
13 Correct 0 ms 384 KB Ok

Subtask #7
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 6392 KB Ok
2 Correct 34 ms 3192 KB Ok
3 Correct 1 ms 384 KB Ok
4 Correct 1 ms 384 KB Ok
5 Correct 0 ms 384 KB Ok
6 Correct 1 ms 512 KB Ok
7 Correct 2 ms 512 KB Ok
8 Correct 34 ms 3192 KB Ok
9 Correct 16 ms 1664 KB Ok
10 Correct 1 ms 384 KB Ok
11 Correct 1 ms 384 KB Ok
12 Correct 7 ms 960 KB Ok
13 Correct 0 ms 384 KB Ok
14 Correct 70 ms 6392 KB Ok
15 Correct 71 ms 6392 KB Ok
16 Correct 70 ms 6392 KB Ok
17 Correct 34 ms 3192 KB Ok
18 Correct 34 ms 3192 KB Ok
19 Correct 16 ms 1664 KB Ok
20 Correct 16 ms 1664 KB Ok
21 Correct 7 ms 1024 KB Ok
22 Correct 6 ms 1024 KB Ok
23 Correct 3 ms 640 KB Ok
24 Correct 1 ms 384 KB Ok
25 Correct 1 ms 384 KB Ok
26 Correct 0 ms 384 KB Ok
27 Correct 71 ms 6512 KB Ok
28 Incorrect 34 ms 3192 KB The values in the output sequence are not pairwise distinct!
29 Halted 0 ms 0 KB -

Subtask #8
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 34 ms 3320 KB The values in the output sequence are not pairwise distinct!
2 Halted 0 ms 0 KB -