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  1. #include <bits/stdc++.h>
  2.  
  3.  
  4. #define gc getchar
  5. #define pc putchar
  6.  
  7. using namespace std;
  8.  
  9. /*#include <ext/pb_ds/tree_policy.hpp>
  10. #include <ext/pb_ds/detail/standard_policies.hpp>
  11. #include <ext/pb_ds/assoc_container.hpp>
  12.  
  13. using namespace __gnu_pbds;
  14. */
  15.  
  16. /*
  17.         two functions for policy based data structure. it is
  18.  
  19.                 find_by_order() and order_of_key().
  20.  
  21.         The first returns an iterator to the k-th largest element (counting from zero),
  22.         the second returns the number of items in a set that are strictly smaller than our item
  23.  
  24. */
  25.  
  26. #define vi vector<int>
  27. #define si set<int>
  28. #define vs vector<string>
  29. #define pii pair<int,int>
  30. #define vpi vector<pii>
  31. #define pri priority_queue<int>
  32. #define rev_pri priority_queue<int,vector<int>,greater<int> >
  33. #define mpi map<int,int>
  34. #define i64 long long int
  35. #define endl '\n'
  36. #define pi acos(-1)
  37. #define all(v) v.begin(),v.end()
  38. #define pb push_back
  39. #define mp make_pair
  40. #define mod 1000000007
  41. #define For(i,n) for(int i=0;i<n;i++)
  42. #define Rep(i,x,y) for(int i=x;i<=y;i++)
  43. #define eps 1e-8
  44. #define ff first
  45. #define ss second
  46. #define mem(a,b) memset(a,b,sizeof(a))
  47. #define min3(a,b,c) min(a,min(b,c))
  48. #define max3(a,b,c) max(a,max(b,c))
  49. #define READ freopen("input.txt", "r", stdin)
  50. #define WRITE freopen("output.txt","w", stdout)
  51. #define sz size()
  52. #define dbg(x) printf("yo is %d!\n",x)
  53. #define dbg2(x,y) printf("yo is %d! and %d!\n",x,y)
  54. #define foreach(i,c) for(__typeof((c).begin()) i = (c).begin(); i != (c).end(); i++)
  55. #define sqr(a) (a) * (a)
  56. #define clr clear()
  57. #define CASE(a) printf("Case %d:\n",a)
  58. #define sf(n) scanf("%d", &n)
  59. #define sff(a,b) scanf("%d %d", &a, &b)
  60. #define sfff(a,b,c) scanf("%d %d %d", &a, &b, &c)
  61.  
  62. //int dx[] = {0,1,0,-1};
  63. //int dy[] = {1,0,-1,0};
  64. //int dx[] = { -1, -1,  0, 1, 1, 1,  0, -1 };
  65. //int dy[] = {  0, -1, -1, -1,  0, 1, 1, 1 };
  66. //int dxK[] = { -2, -2, -1, 1, 2, 2, 1, -1 };
  67. //int dyK[] = { -1, 1, 2, 2, 1, -1, -2, -2 };
  68.  
  69. //functions
  70.  
  71. //i64 gcd(i64 a,i64 b){if(!b)return a;return gcd(b,a%b);}
  72.  
  73. //inline void fastRead(i64 *a){register char c=0;while(c<33)c=gc();*a=0;while(c>33){*a=*a*10+c-'0';c=gc();}}
  74.  
  75. //inline void fastWrite(int a){char snum[20];int i=0;do{snum[i++]=a%10+48;a=a/10;}while(a!=0);i=i-1;while(i>=0)pc(snum[i--]);pc('\n');}
  76.  
  77. //i64 bigmod(i64 num,i64 n){if(!n)return 1;i64 x=(bigmod(num,n/2)*bigmod(num,n/2))%mod;if(n%2)x=(x*num)%mod;return x;}
  78.  
  79. //i64 modinverse(i64 num){return bigmod(num,mod-2);}
  80.  
  81. //void combination(int pos,int last){if(pos==k+1){for(int i=1;i<=k;i++)cout << tem[i];cout << endl;return;}
  82. //for(int i=last+1;i<=n-k+pos;i++){tem[pos] = num[i-1];combination(pos+1,i);}}
  83. //i64 power(i64 value, i64 base){i64 result = 1;For(i,base)result *= value;return result;}
  84. //int Set(int N,int pos){return N = (1<<pos);}
  85. //int reset(int N,int pos){return N &= (~(1<<pos));}
  86. //bool check(int N,int pos){return (bool)(N & (1<<pos));}
  87.  
  88. //typedef tree< int, null_type, less < int >, rb_tree_tag, tree_order_statistics_node_update > Set;
  89.  
  90. const int  maxnode = 1000005;
  91. const int letters=26;
  92.  
  93. string str,key;
  94. vector<pair<string, int> > v;
  95. int id;
  96.  
  97. struct Trie
  98. {
  99.     int ch[maxnode][letters];
  100.     int val[maxnode];
  101.     int f[maxnode];
  102.     int ss;
  103.     void init()
  104. 	{
  105. 		ss=1;
  106. 		mem(ch,0);
  107. 		mem(val,25);
  108. 		mem(f,0);
  109. 	}
  110.  
  111.     void insert(string s)
  112.     {
  113.         int u=0;
  114.         For(i,s.sz)
  115.         {
  116.             int c=s[i]-'a';
  117.             if(!ch[u][c])
  118.                 ch[u][c]=ss++;;
  119.             u=ch[u][c];
  120.         }
  121.         val[u] = min(val[u],id);
  122.     }
  123.     void build_fail()
  124.     {
  125.         queue<int>q;
  126.         int i;
  127.         For(i,26)
  128.         {
  129.             if(ch[0][i])
  130.                 q.push(ch[0][i]);
  131.         }
  132.         int r,u,v;
  133.         while(!q.empty())
  134.         {
  135.             r=q.front();
  136.             q.pop();
  137.             For(c,26)
  138.             {
  139.                 u=ch[r][c];
  140.                 if(!u)
  141.                     continue;
  142.                 q.push(u);
  143.                 v=f[r];
  144.  
  145.                 while(v&&ch[v][c]==0)
  146.                     v=f[v];
  147.                 f[u]=ch[v][c];
  148.  
  149.             }
  150.         }
  151.     }
  152.     bool search(string s)
  153.     {
  154.         int j=0;
  155.         For(i,s.sz)
  156.         {
  157.             int c=s[i]-'a';
  158.             while(j&&ch[j][c]==0)
  159.                 j=f[j];
  160.             j=ch[j][c];
  161.             int temp=j;
  162.             while(temp)
  163.             {
  164.                 if(val[temp]<=id)
  165.                     return true;
  166.                 temp=f[temp];
  167.             }
  168.         }
  169.         return false;
  170.     }
  171. }ac;
  172.  
  173. int main()
  174. {
  175. 	int q;
  176. 	cin >> q;
  177. 	ac.init();
  178.  
  179. 	Rep(i,1,q)
  180.     {
  181. 		int n;
  182. 		cin >> n;
  183.  
  184. 		cin >> str;
  185.  
  186.         if(n==0)
  187.         {
  188.             id = i;
  189.             ac.insert(str);
  190.         }
  191. 		else
  192.         {
  193.             v.pb(mp(str,i));
  194.         }
  195.     }
  196.     ac.build_fail();
  197.     For(i,v.sz)
  198.     {
  199.         id = v[i].ss;
  200.         str = v[i].ff;
  201.         if(ac.search(str))
  202.             puts("YES");
  203.         else
  204.             puts("NO");
  205.     }
  206. }
  207.  
  208.  
Success #stdin #stdout 0.02s 125440KB
comments (?)
stdin
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12
0 cat
1 dogville
0 dog
1 dogville
1 gooutwithcat
1 gooutwithcrocodile
1 fancyconcatenation
0 crocodile
1 lacoste
1 gooutwithcrocodile
1 catalanreferendum
1 rocodile
stdout
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NO
YES
YES
NO
YES
NO
YES
YES
NO
https://ideone.com/jzXaxv
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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