Submission #19475445

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef signed long long ll;

#define _P(...) (void)printf(__VA_ARGS__)
#define FOR(x,to) for(x=0;x<(to);x++)
#define FORR(x,arr) for(auto& x:arr)
#define FORR2(x,y,arr) for(auto& [x,y]:arr)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
template<class T> bool chmax(T &a, const T &b) { if(a<b){a=b;return 1;}return 0;}
template<class T> bool chmin(T &a, const T &b) { if(a>b){a=b;return 1;}return 0;}
//-------------------------------------------------------


int N;
int C[9][512][512];
int D[256][256];

void solve() {
	int i,j,k,l,r,x,y; string s;
	
	cin>>N;
	
	if(N==1) {
		cout<<1<<endl;
		cout<<"AB"<<endl;
		return;
	}
	
	C[1][0][0]=0;
	C[1][0][1]=1;
	for(i=2;i<=N;i++) {
		FOR(x,1<<i) C[i][0][x]=x;
		int s=1<<(i-2);
		FOR(x,((1<<i)-2)) {
			FOR(y,s) {
				C[i][x*2+1][y]=C[i][x*2+2][y]=C[i-1][x][y];
				C[i][x*2+1][y+2*s]=C[i][x*2+2][y+2*s]=C[i-1][x][y+s];
				C[i][x*2+1][y+s]=C[i][x*2+2][y+3*s]=C[i-1][x][y]+2*s;
				C[i][x*2+1][y+3*s]=C[i][x*2+2][y+s]=C[i-1][x][y+s]+2*s;
			}
		}
		/*
		cout<<i<<endl;
		FOR(x,(1<<i)-1) {
			FOR(y,(1<<i)) cout<<C[i][x][y]<<" ";
			cout<<endl;
		}
		*/
	}
	cout<<((1<<N)-1)<<endl;
	FOR(i,((1<<N)-1)) {
		string S;
		S.resize(1<<N);
		int t=(1<<N)/2;
		FOR(x,t) S[C[N][i][x]]='A';
		FOR(x,t) S[C[N][i][x+t]]='B';
		cout<<S<<endl;
		
	}
	/*
	FOR(i,(1<<N)-1) {
		int t=(1<<N)/2;
		FOR(x,t) FOR(y,t) D[C[N][i][x]][C[N][i][y]]++;
		FOR(x,t) FOR(y,t) D[C[N][i][x+t]][C[N][i][y+t]]++;
	}
	
	FOR(y,1<<N) {
		FOR(x,1<<N) _P("%3d ",D[y][x]);
		_P("\n");
	}
	*/
}


int main(int argc,char** argv){
	string s;int i;
	if(argc==1) ios::sync_with_stdio(false), cin.tie(0);
	FOR(i,argc-1) s+=argv[i+1],s+='\n'; FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
	cout.tie(0); solve(); return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘void solve()’:
./Main.cpp:22:8: warning: unused variable ‘j’ [-Wunused-variable]
   22 |  int i,j,k,l,r,x,y; string s;
      |        ^
./Main.cpp:22:10: warning: unused variable ‘k’ [-Wunused-variable]
   22 |  int i,j,k,l,r,x,y; string s;
      |          ^
./Main.cpp:22:12: warning: unused variable ‘l’ [-Wunused-variable]
   22 |  int i,j,k,l,r,x,y; string s;
      |            ^
./Main.cpp:22:14: warning: unused variable ‘r’ [-Wunused-variable]
   22 |  int i,j,k,l,r,x,y; string s;
      |              ^
./Main.cpp: In function ‘int main(int, char**)’:
./Main.cpp:6:28: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
    6 | #define FOR(x,to) for(x=0;x<(to);x++)
      |                            ^
./Main.cpp:81:38: note: in expansion of macro ‘FOR’
   81 |  FOR(i,argc-1) s+=argv[i+1],s+='\n'; FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
      |                                      ^~~

Judge Result