結果

問題 No.290 1010
ユーザー LayCurse
提出日時 2015-10-16 22:27:26
言語 C++11
(gcc 4.8.5)
結果
AC  
実行時間 3 ms
コード長 2,525 Byte
コンパイル時間 1,053 ms
使用メモリ 1,452 KB
最終ジャッジ日時 2019-10-25 19:45:16

テストケース

テストケース表示
入力 結果 実行時間
使用メモリ
manual_0.txt AC 3 ms
1,452 KB
manual_1.txt AC 3 ms
1,452 KB
manual_2.txt AC 3 ms
1,448 KB
manual_3.txt AC 3 ms
1,448 KB
manual_4.txt AC 3 ms
1,448 KB
manual_5.txt AC 3 ms
1,448 KB
manual_6.txt AC 3 ms
1,448 KB
manual_7.txt AC 3 ms
1,448 KB
manual_8.txt AC 3 ms
1,448 KB
manual_9.txt AC 3 ms
1,448 KB
manual_10.txt AC 3 ms
1,448 KB
manual_11.txt AC 3 ms
1,448 KB
manual_12.txt AC 3 ms
1,452 KB
manual_13.txt AC 3 ms
1,452 KB
manual_14.txt AC 3 ms
1,452 KB
manual_15.txt AC 3 ms
1,452 KB
manual_16.txt AC 3 ms
1,448 KB
manual_17.txt AC 3 ms
1,448 KB
manual_18.txt AC 3 ms
1,448 KB
manual_19.txt AC 3 ms
1,452 KB
manual_20.txt AC 3 ms
1,448 KB
manual_21.txt AC 3 ms
1,452 KB
manual_22.txt AC 3 ms
1,448 KB
manual_23.txt AC 3 ms
1,452 KB
テストケース一括ダウンロード

ソースコード

diff # 
#include<bits/stdc++.h>
using namespace std;

#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

#define mygc(c) (c)=getchar_unlocked()
#define mypc(c) putchar_unlocked(c)

#define ll long long
#define ull unsigned ll

void reader(int *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
void reader(ll *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
void reader(double *x){scanf("%lf",x);}
int reader(char c[]){int i,s=0;for(;;){mygc(i);if(i!=' '&&i!='\n'&&i!='\r'&&i!='\t'&&i!=EOF) break;}c[s++]=i;for(;;){mygc(i);if(i==' '||i=='\n'||i=='\r'||i=='\t'||i==EOF) break;c[s++]=i;}c[s]='\0';return s;}
template <class T, class S> void reader(T *x, S *y){reader(x);reader(y);}
template <class T, class S, class U> void reader(T *x, S *y, U *z){reader(x);reader(y);reader(z);}
template <class T, class S, class U, class V> void reader(T *x, S *y, U *z, V *w){reader(x);reader(y);reader(z);reader(w);}

void writer(int x, char c){int s=0,m=0;char f[10];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(ll x, char c){int s=0,m=0;char f[20];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);}
void writer(double x, char c){printf("%.15f",x);mypc(c);}
void writer(const char c[]){int i;for(i=0;c[i]!='\0';i++)mypc(c[i]);}
void writer(const char x[], char c){int i;for(i=0;x[i]!='\0';i++)mypc(x[i]);mypc(c);}
template<class T> void writerLn(T x){writer(x,'\n');}
template<class T, class S> void writerLn(T x, S y){writer(x,' ');writer(y,'\n');}
template<class T, class S, class U> void writerLn(T x, S y, U z){writer(x,' ');writer(y,' ');writer(z,'\n');}
template<class T> void writerArr(T x[], int n){int i;if(!n){mypc('\n');return;}rep(i,n-1)writer(x[i],' ');writer(x[n-1],'\n');}

char memarr[17000000]; void *mem = memarr;
#define MD 1000000007

int N;
char in[1100000];

int is_samea(char a[], char b[], int len){
  int i;
  rep(i,len) if(a[i]!=b[i]) return 0;
  return 1;
}

int main(){
  int i, j, k;

  reader(&N);

  if(N > 40){
    writerLn("YES");
    return 0;
  }

  reader(in);

  rep(i,N) REP(j,1,N){
    if(i+j+j-1 >= N) continue;
    if(is_samea(in+i,in+i+j,j)){
      writerLn("YES");
      return 0;
    }
  }

  writerLn("NO");

  return 0;
}
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