結果

問題 No.3728 Half and Half, and Double
コンテスト
ユーザー れびれびれびれびれびれびれびれびれびれびれびれびれびれびれびれび
提出日時 2026-09-19 14:09:17
言語 C++23(gcc16)
(gcc 16.1.0 + boost 1.92.0 + ACL)
コンパイル:
g++-16 -O2 -lm -std=c++23 -Wuninitialized -DONLINE_JUDGE -o a.out _filename_
実行:
./a.out
結果
WA  
実行時間 -
コード長 10,609 bytes
記録
記録タグの例:
初AC ショートコード 純ショートコード 純主流ショートコード 最速実行時間
コンパイル時間 7,757 ms
コンパイル使用メモリ 414,856 KB
実行使用メモリ 10,028 KB
最終ジャッジ日時 2026-09-19 14:09:30
合計ジャッジ時間 9,113 ms
ジャッジサーバーID
(参考情報)
judge2_0 / judge7_0
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 2
other AC * 32 WA * 1
権限があれば一括ダウンロードができます

ソースコード

diff #
raw source code

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i,t,n) for(long long i=t;i<n;i++)
#define rep2(i,A) for(auto &i:A)
#define Sort(a) sort(a.begin(),a.end())
#define rSort(a,n,m) sort(a.begin()+n,a.begin()+m+1)
#define Reverse(a) reverse(a.begin(),a.end())
#define rReverse(a,n,m) reverse(a.begin()+n,a.begin()+m+1)
#define MOD1 998244353LL
#define MOD2 1000000007LL
#define sign(i) -1*pow(-1,i)
#define vi(A,N,i)  vector<long long> A(N,i)
#define vd(A,N,i)  vector<double> A(N,i)
#define vc(A,N,i)  vector<char> A(N,i)
#define vs(A,N,i)  vector<string> A(N,i)
#define vb(A,N,i)  vector<bool> A(N,i)
#define vp(A,N,i)  vector<Pair> A(N,{i,i})
#define vvi(A,N,M,i) vector<vector<long long>> A(N,vector<long long>(M,i))
#define vvp(A,N,M,i) vector<vector<Pair>> A(N,vector<Pair>(M,{i,i}))
#define vvd(A,N,M,i) vector<vector<double>> A(N,vector<double>(M,i))
#define vvc(A,N,M,i) vector<vector<char>> A(N,vector<char>(M,i))
#define vvb(A,N,M,i) vector<vector<bool>> A(N,vector<bool>(M,i))
#define vvs(A,N,M,i) vector<vector<string>> A(N,vector<string>(M,i))
#define vvvi(A,N,M,L,i) vector<vector<vector<ll>>> A(N,vector<vector<ll>>(M,vector<ll>(L,i)))
#define vvvs(A,N,M,L,i) vector<vector<vector<string>>> A(N,vector<vector<string>>(M,vector<string>(L,i)))
#define vvvvi(A,N,M,L,O,i) vector<vector<vector<vector<ll>>>> A(N,vector<vector<vector<ll>>>(M,vector<vector<ll>>(L,vector<ll>(O,i))))

#define ll long long
#define INF ((1LL<<62)-(1LL<<31))
#define ALL(a) (a).begin(),(a).end()

using VVi=vector<vector<ll>>;
using Pair=pair<ll,ll>;
using graphi=vector<vector<ll>>;
using graphp=vector<vector<Pair>>;
struct Plane{
  ll x;
  ll y;
};
struct Path{
  ll cost;
  ll to;
};
template<typename T>
void CIN(vector<T> &A){
  rep(i,0,(ll)A.size()){
    cin>>A[i];
  }
  return;
}
struct ThreePlane{
  ll x,y,z;
  ThreePlane(ll X=0,ll Y=0,ll Z=0):x(X),y(Y),z(Z){}
  bool operator<(const ThreePlane& other) const {
    return x<other.x;
  }
  bool operator<=(const ThreePlane& other) const {
    return x<=other.x;
  }
  bool operator>(const ThreePlane& other) const {
    return x>other.x;
  }
  bool operator>=(const ThreePlane& other) const {
    return x>=other.x;
  }
};
struct FourPlane{
  ll dist;
  ll x;
  ll y;
  ll stat;
};
struct Fraction{
    ll p,q,r;
    Fraction(ll P = 0, ll Q = 1,ll R = 1): p(P), q(Q),r(R){}
    bool operator<(const Fraction &other)const{
      if(p*other.q != other.p*q){
        return p*other.q < other.p*q;
      }else{
        return r>other.r;
      }
        
    }
};

ll GCD(ll a,ll b){
  if(b==0)return a;
  return GCD(b,a%b);
}
pair<long long, long long> extGCD(long long a, long long b) {// ax+by=1 solver
  if (b == 0) return make_pair(1, 0);
  long long x,y;
  tie(y,x)=extGCD(b,a%b);
  y-=a/b*x;
  return make_pair(x,y);
}
ll SQRT(ll a){
  ll low,high,mid;
  low=0;
  high=1LL<<31;
  while(high-low!=1){
    mid=(low+high)/2;
    if(mid*mid<=a){
      low=mid;
    }else{
      high=mid;
    }
  }
  return low;
}
string strmin(string x,string y){
  ll minlength=min((int)x.size(),(int)y.size());
  rep(i,0,minlength){
    if(x[i]>y[i])return y;
    if(x[i]<y[i])return x;
  }
  if((int)x.size()>(int)y.size())return y;
  return x;
}
ll LCS(string x,string y){
  ll xsize=(ll)x.size();
  ll ysize=(ll)y.size();
  vvi(dp,xsize+1,ysize+1,0);
  rep(i,1,xsize+1){
    rep(j,1,ysize+1){
      if(x[i-1]==y[j-1])dp[i][j]=max(max(dp[i-1][j-1]+1,dp[i][j-1]),dp[i-1][j]);
      else dp[i][j]=max(dp[i][j-1],dp[i-1][j]);
    }
  }
  return dp[xsize][ysize];
}
ll Factorial(ll n,ll mod){
  ll a=1;
  if(n>=mod)return 0;
  rep(i,1,n+1){
    a*=i;
    a%=mod;
  }
  return a;
}
ll Combination(ll n,ll k,ll mod){
  if(n<k)return 0;
  ll a=Factorial(n,mod);
  ll b=inv_mod(Factorial(k,mod),mod);
  ll c=inv_mod(Factorial(n-k,mod),mod);
  a*=b;
  a%=mod;
  a*=c;
  a%=mod;
  return a;
}
vector<pair<char,long long>> RLE(string x,char s=' ',long long a=0,vector<pair<char,long long>> res={}){
  for(auto i:x){
    if(s==i){
      a++;
    }else{
      if(s!=' ')res.push_back({s,a});
      s=i,a=1;
    }
  }
  res.push_back({s,a});
  return res;
}
vector<pair<ll,long long>> RLEll(vector<ll> x,ll s=-INF,long long a=0,vector<pair<ll,long long>> res={}){
  for(auto i:x){
    if(s==i){
      a++;
    }else{
      if(s!=-INF)res.push_back({s,a});
      s=i,a=1;
    }
  }
  res.push_back({s,a});
  return res;
}
vector<ll> cu1d(vector<ll> A){
  ll cu1=A.size();
  vector<ll> res(cu1+1,0);
  rep(i,0,cu1)res[i+1]=A[i];
  rep(i,1,cu1+1)res[i]+=res[i-1];
  return res;
}
vector<vector<ll>> cu2d(vector<vector<ll>> A){
  ll cu1=A.size(),cu2=A[0].size();
  vector<vector<ll>> res(cu1+1,vector<ll>(cu2+1,0));
  rep(i,0,cu1)rep(j,0,cu2)res[i+1][j+1]=A[i][j];
  rep(i,1,cu1+1)rep(j,0,cu2+1)res[i][j]+=res[i-1][j];
  rep(j,0,cu1+1)rep(i,1,cu2+1)res[j][i]+=res[j][i-1];
  return res;
}
ll LIS(vector<ll> A){
  ll a=(ll)A.size();
  vector<ll> result(a,INF);
  ll answer=0;
  rep(i,0,a){
    ll ok=-1;
    ll ng=a;
    while(ng-ok!=1){
      ll mid=(ok+ng)/2;
      if(A[i]<=result[mid])ng=mid;
      else ok=mid;
    }
    result[ok+1]=A[i];
    answer=max(answer,ok+2);
  }
  return answer;
}
vector<ll> zaatu(vector<ll> A){
  vector<ll> B=A;
  Sort(B);
  B.erase(unique(ALL(B)),end(B));
  vector<ll> res;
  transform(ALL(A),back_inserter(res),[&](const ll &x){
    return lower_bound(ALL(B),x)-begin(B);
  });
  return res;
}
vector<string> trim(vector<string> A){
  bool frag=0;
  char s='#';
  ll h=(ll)A.size();
  ll w=(ll)A[0].size();
  ll a=-1,b=h,c=-1,d=w;
  for(ll i=0;i<h;i++){
    for(ll j=0;j<w;j++)if(A[i][j]==s)frag=1;
    if(frag)break;
    a=i;
  }
  frag=0;
  for(ll i=h-1;i>=0;i--){
    for(ll j=0;j<w;j++)if(A[i][j]==s)frag=1;
    if(frag)break;
    b=i;
  }
  frag=0;
  for(ll i=0;i<w;i++){
    for(ll j=0;j<h;j++)if(A[j][i]==s)frag=1;
    if(frag)break;
    c=i;
  }
  frag=0;
  for(ll i=w-1;i>=0;i--){
    for(ll j=0;j<h;j++)if(A[j][i]==s)frag=1;
    if(frag)break;
    d=i;
  }
  vector<string> B(b-a-1,"");
  for(ll i=a+1;i<b;i++)for(ll j=c+1;j<d;j++)B[i-a-1]+=A[i][j];
  return B;
}
char to_upper(char &s){
  if('a'<=s){
    s-=32;
  }
  return s;
}
char to_lower(char &s){
  if(s<='Z'){
    s+=32;
  }
  return s;
}
vector<vector<ll>> Warshall(vector<vector<ll>> A){
  ll a=A.size();
  rep(k,0,a)rep(i,0,a)rep(j,0,a)A[i][j]=min(A[i][j],A[i][k]+A[k][j]);
  return A;
}

ll bit_ceil(ll n) {
    ll x = 1;
    while (x < (ll)(n)) x *= 2;
    return x;
}
int countr_zero(ll n){
    ll res=0;
    while(n%2==0){
        res++;
        n>>=1;
    }
    return res;
}
vector<string> make_grid(ll H,ll W,char filler='#'){
  vector<string> res(H+2);
  string st="";
  rep(i,0,W+2)st+=filler;
  res[0]=res[H+1]=st;
  string st2;
  rep(i,1,H+1){
    cin>>st2;
    res[i]=filler+st2+filler;
  }
  return res;
}
struct binC{
    long long mod;
    vector<long long>fact;
    vector<long long>inv;
    vector<long long>fact_inv;
    binC(long long mod):mod(mod){
        fact.resize(5050505);
        inv.resize(5050505);
        fact_inv.resize(5050505);
        fact[0]=fact[1]=1;
        fact_inv[0]=fact_inv[1]=1;
        inv[1]=1;
        rep(i,2,5050505){
            fact[i]=fact[i-1]*i%mod;
            inv[i]=mod-inv[mod%i]*(mod/i)%mod;
            fact_inv[i]=fact_inv[i-1]*inv[i]%mod;
        }
    }
    ll C(ll n,ll k){
        if(k<0||n<k)return 0;
        return fact[n]*(fact_inv[k]*fact_inv[n-k]%mod)%mod;
    }
};
struct rolling_hash {
    vector<ll> data;
    ll size;
    static const ll mod=385870579LL;
    static const ll base=258324359LL;
    ll base_inv=inv_mod(base,mod);
    static ll ie(){return 0LL;}
    static ll operat(ll a,ll b){return (a+b)%mod;}
    segtree<ll,operat,ie>seg;
    vector<ll>ofset;
    vector<ll>power;
    void init(){
        ofset[0]=1LL;
        rep(idx,1,size){
            ofset[idx]=ofset[idx-1]*base_inv;
            ofset[idx]=ofset[idx]%mod;
        }
        power[0]=1LL;
        rep(idx,1,size){
            power[idx]=power[idx-1]*base;
            power[idx]=power[idx]%mod;
        }
    }
    rolling_hash(ll n) : data(n), size(n), seg(n), ofset(n), power(n) {
        init();
        rep(idx,0,size){
            data[idx]=0;
        }
        
    }
    rolling_hash(const string& str) : data(str.size()), size(str.size()), seg(str.size()), ofset(str.size()), power(str.size()) {
        init();
        rep(idx,0,size){
            data[idx]=str[idx];
            seg.set(idx,str[idx]*power[idx]%mod);
        }
        
    }
    rolling_hash(const vector<ll>& vec) : data(vec), size(vec.size()), seg(vec), ofset(vec.size()), power(vec.size()) {
        init();
        rep(idx,0,size){
            data[idx]=vec[idx];
            seg.set(idx,vec[idx]*power[idx]%mod);
        }
    }
    void set(ll i,ll a){
        data[i]=a;
        seg.set(i,a*power[i]%mod);
    }
    ll get(ll idx){
        return data[idx];
    }
    ll value(ll l,ll r){
        return seg.prod(l,r)*ofset[l]%mod;
    }
};
ll inversion(vector<ll>A){
    ll res=0;
    ll siz=0;
    rep(i,0,(ll)A.size())siz=max(siz,A[i]);
    fenwick_tree<ll>FT(siz);
    rep(i,0,A.size()){
        res+=FT.sum(A[i],siz);
        FT.add(A[i],1);
    }
    return res;
}
vector<ll>argsort(vector<ll>&A){
    vector<Pair>B((ll)A.size());
    rep(i,0,(ll)A.size())B[i]={A[i],i};
    stable_sort(B.begin(),B.end());
    vector<ll>res((ll)A.size());
    rep(i,0,(ll)A.size())res[i]=B[i].second;
    return res;
}

//Warshall rep(k,0,a)rep(i,0,a)rep(j,0,a)A[i][j]=min(A[i][j],A[i][k]+A[k][j]);
long long a,b,c,d,e,f,g,h,ans=0;
string w,x="",y="",z="";
char s,t,u;
bool frag=false,frag1=false,frag2=false;
vector<ll> X={1,0,-1,0},Y={0,1,0,-1};
vector<ll>C,A;
bool ff(ll a,ll b){
    return C[A[a]]>C[A[b]];
}
int main(){
    cin>>a;
    if(a==1){
        cout<<-1<<endl;
        return 0;
    }
    if(a<4){
        cout<<-1<<endl;
        return 0;
        
    }
    if(a>=4){
        a*=2;
        rep(i,0,a){
            if(i==0){
                rep(j,0,a)cout<<"A";
            }
            else if(i==1){
                rep(j,0,a){
                    if(a-4<=j&&j!=a-1)cout<<"B";
                    else cout<<"A";
                }
            }
            else if(i==a-1){
                rep(j,0,a){
                    if(a-4<=j&&j!=a-1)cout<<"B";
                    else cout<<"A";
                }
            }
            else{
                ll p=i/2;
                rep(j,0,a){
                    if(max(1LL,a-p*2-3)<=j&&j!=a-1)cout<<"B";
                    else cout<<"A";
                }
            }
            cout<<endl;
            
        }
    }
    return 0;
}
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