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  1.  
  2. //#define Bharatvarsh
  3.  
  4. #ifndef Bharatvarsh
  5. #include <bits/stdc++.h>
  6. #else
  7. #include "total.h"
  8. #endif
  9. #define fori(n) for(long long i=0;i<n;i++)
  10. #define forr(i,x,y) for(long long i=x;i<y;i++)
  11. #define forj(n) for(long long j=0;j<n;j++)
  12. #define ll long long
  13. #define d7 1000000007
  14. #define en cout<<"\n";
  15.  
  16. using namespace std;
  17.  
  18. ll x=-1,kk=-1;
  19. bool jpo=false;
  20. void dfs(ll s, vector<bool> &v, vector<ll> &pr, vector<ll> adj[]){
  21.     if(v[s]) return;
  22.     v[s]=true;
  23.     //cout<<s+1<<" ";
  24.     for(auto u: adj[s]){
  25.         if(!v[u]){
  26.             pr[u]=s;
  27.             //cout<<u<<" ";
  28.             dfs(u,v,pr,adj);}
  29.         else{
  30.             if(!jpo&&pr[s]!=u){jpo=true;x=u;kk=s;}
  31.         }
  32.     }
  33. }
  34.  
  35. bool isPrime(long long k){
  36.     if(k<=1){return false;}
  37.     if(k==2){return true;}
  38.     if(k%2==0){return false;}
  39.     long long i = 3;
  40.    while (i*i <= k) {if (k % i == 0) {return false;}i += 2;}
  41. return true;
  42. }
  43.  
  44. ll binomialCoeff(ll n, ll k){
  45.    ll C[n + 1][k + 1];ll i, j;
  46.    for (i = 0; i <= n; i++){
  47.        for (j = 0; j <= min(i, k); j++){
  48.            if (j == 0 || j == i){C[i][j] = 1;}
  49.            else{C[i][j] = (C[i - 1][j - 1] + C[i - 1][j]);}}}
  50.    return C[n][k];
  51. }
  52. void bfs(vector<ll> &dis, vector<ll> adj[], ll s, vector<ll> &parent){
  53.     dis[s]=0;
  54.     //parent[s]=-1;
  55.     queue<ll> q;
  56.     q.push(s);
  57.     while(!q.empty()){
  58.         ll z=q.front();
  59.         //cout<<z<<" ";
  60.         q.pop();
  61.         for(auto v:adj[z]){
  62.             if(dis[v]==0){
  63.             q.push(v);
  64.             dis[v]=dis[z]+1;
  65.                 parent[v]=z;
  66.             }
  67.         }
  68.     }
  69. }
  70.  
  71. ll modexp(ll x, ll n,ll m){
  72.     if(n==0) return 1%m;
  73.     ll u=modexp(x,n/2,m);
  74.     u=(u*u)%m;
  75.     if(n%2==1) u=(u*x)%m;
  76.     return u;
  77. }
  78.  
  79. ll modinv(ll x, ll mod) { return modexp(x, mod - 2, mod); }
  80. const int Nx=1e6+5;
  81. ll fact[Nx];
  82. void factorial(){fact[0]=1;
  83.     for(int i=1;i<Nx;i++)
  84.     {
  85.         fact[i]=(fact[i-1]*i)%d7;
  86.     }
  87.     return ;}
  88. ll binomial(ll a,ll b,ll mod){
  89.     return ((fact[a]*modinv(fact[b],mod))%mod*modinv(fact[a-b],mod))%mod;}
  90.  
  91. ll gcd(ll a, ll b){
  92.     if(b==0) return a;
  93.     return gcd(b, a%b);
  94. }
  95.  
  96. tuple<ll,ll,ll,ll> expA(tuple<ll,ll,ll,ll> v, ll n){
  97.     if(n==0){return {1,0,1,0};}
  98.     if(n==1){return v;}
  99.         ll x1,y1,z1,w1;
  100.         ll x2,y2,z2,w2;
  101.         tie(x1,y1,z1,w1) = expA(v, n/2);
  102.         x2=(x1*x1+y1*z1)%d7;
  103.         y2=(x1*y1+y1*w1)%d7;
  104.         z2=(z1*x1+w1*z1)%d7;
  105.         w2=(z1*y1+w1*w1)%d7;
  106.     if(n%2==0){
  107.         return {x2,y2,z2,w2};
  108.     }
  109.     else{
  110.         return {x2+z2,y2+w2,x2,y2};
  111.     }
  112. }
  113.  
  114. //ll st[200010][30];
  115. //ll loge2[200001];
  116. //void logify(){
  117. //loge2[1] = 0;
  118. //for (ll i = 2; i <= 200001; i++)
  119. //    loge2[i] = loge2[i/2] + 1;
  120. //}
  121.  
  122. //unordered_map<ll,ll> mp;
  123.  
  124. vector<ll> primes;
  125.  
  126. vector<ll> dp(100,0);
  127.  
  128. void solution(){
  129.  
  130.  
  131.        string s,t;
  132.        getline(cin,s);
  133.        getline(cin,t);
  134.        set<char> yu;
  135.  
  136.     for(ll i=0;i<s.size();i++){
  137.         yu.insert(s[i]);
  138.     }
  139.     bool sahihai=true;
  140.  
  141.     for(ll i=0;i<t.size();i++){
  142.         auto hh=yu.find(t[i]);
  143.         if(hh==yu.end()){
  144.             sahihai=false;break;
  145.         }
  146.     }
  147.  
  148.     if(!sahihai){cout<<"No String";return;}
  149.  
  150.     set<char> s1, s2;
  151.  
  152.     for(ll i=0;i<t.size();i++){
  153.         s1.insert(t[i]);
  154.         s2.insert(t[i]);
  155.     }
  156.     ll n=s.size();
  157.  
  158.     map<char,ll> mp;
  159.  
  160.     vector<string> ans;
  161.  
  162.     for(ll i=0,j=0;j<=n;){
  163.  
  164.         for(ll hh=i;hh<j;hh++){
  165.             s1.erase(s[hh]);
  166.         }
  167.  
  168.         while(!s1.empty() && j<n){
  169.             s1.erase(s[j]);j++;
  170.         }
  171.  
  172.         if(!s1.empty()) break;
  173.  
  174.         for(ll h=i;h<j;h++){
  175.             mp[s[h]]++;
  176.         }
  177.  
  178.         while(i<j){
  179.             if(s2.find(s[i])!=s2.end()){
  180.                 if(mp[s[i]]>1){
  181.                     mp[s[i]]--;
  182.                 }else{
  183.                     break;
  184.                 }
  185.             }
  186.             i++;
  187.         }
  188.         string ui;
  189.         for(ll hh=i;hh<j;hh++){
  190.             ui.push_back(s[hh]);
  191.         }
  192.         //cout<<i<<" "<<j<<ui<<" :\n";
  193.         ans.push_back(ui);
  194.  
  195.         if(j<=n&&(i<j)){
  196.             i++;
  197.         }else{
  198.             break;
  199.         }
  200.  
  201.         for(auto h: s2){
  202.             mp[h]=0;
  203.             s1.insert(h);
  204.         }
  205.  
  206.     }
  207.  
  208.     //cout<<"Answer:\n";
  209.     ll mn=ans[0].size();
  210.     for(auto h: ans){
  211.         mn=min((ll)h.size(),mn);
  212.     }
  213.     for(auto h: ans){
  214.         if(mn==h.size()){
  215.             cout<<h<<endl;break;
  216.         }
  217.     }
  218.  
  219.  
  220. }
  221.  
  222. int main(){
  223.  
  224. //    vector<bool> f(1010,true);
  225. //    primes.push_back(2);
  226. //
  227. //    for(ll i=3;i<1010;i+=2){
  228. //        while(i<1010&& !f[i]) i+=2;
  229. //        if(i<1010 && f[i]){
  230. //            primes.push_back(i);
  231. //
  232. //        for(ll j=2*i;j<1010;j+=i){
  233. //            f[j]=false;
  234. //        }}
  235. //    }
  236.  
  237.  
  238.  
  239.     ll t=1;
  240.     //cin>>t;
  241.     while(t--){
  242.         solution();
  243.     }
  244.  
  245.     return 0;
  246. }
Success #stdin #stdout 0s 4488KB
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language:

						
C++ (gcc 8.3)

					

					

						
created:
								
						
6 years ago

					

					

						
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