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  1. /*
  2. 	Source Code by adityaghosh996
  3. */
  4. #include<bits/stdc++.h>
  5. #define ll long long int
  6. #define pb(a) push_back(a)
  7. #define mp(a,b) make_pair(a,b)
  8. using namespace std;
  9. string name[1000000];
  10. vector<ll> child;
  11. vector<string> level[1000000];
  12. bool vis[1000000];
  13. ll n,pos=0,minuend=0;
  14. inline bool isnum(string s)
  15. {
  16.     for(ll i=0;i<s.length();i++)
  17.     {
  18.         if(!isdigit(s[i]))
  19.             return false;
  20.     }
  21.     return true;
  22. }
  23. inline ll numval(string s)
  24. {
  25.     ll val=0;
  26.     for(ll i=0;i<s.length();i++)
  27.     {
  28.         int d=s[i]-'0';
  29.         val=val*10+d;
  30.     }
  31.     return val;
  32. }
  33. inline void dfs(ll curr_level)
  34. {
  35.     level[curr_level-minuend].pb(name[pos]);
  36.     vis[pos]=true;
  37.     ll ch=child[pos];
  38.     pos++;
  39.     for(ll i=0;i<ch;i++)
  40.     {
  41.         dfs(curr_level+1);
  42.     }
  43.     return;
  44. }
  45. int main()
  46. {
  47. 	ios_base::sync_with_stdio(0);;cin.tie(0);
  48.     memset(vis,false,sizeof(vis));
  49.     string s;
  50.     cin>>s;
  51.     vector<string> total;
  52.     string temp="";
  53.     for(ll i=0;i<s.length();i++)
  54.     {
  55.         if(s[i]==',')
  56.         {
  57.             total.pb(temp);
  58.             temp="";
  59.         }
  60.         else
  61.             temp=temp+s[i];
  62.     }
  63.     total.pb(temp);
  64.     ll cnt=0;
  65.     for(ll i=0;i<total.size();i++)
  66.     {
  67.         if(isnum(total[i]))
  68.         {
  69.             child.pb(numval(total[i]));
  70.             cnt++;
  71.         }
  72.         else
  73.         {
  74.             name[cnt]=total[i];
  75.         }
  76.     }
  77.     n=child.size();
  78.     while(pos<n)
  79.     {
  80.     	minuend=pos;
  81. 		dfs(pos);
  82. 	}
  83. 	ll tlev=0;
  84.     for(ll i=0;i<1000000;i++)
  85.     {
  86.     	tlev++;
  87.         if(level[i].size()==0)
  88.             break;
  89.     }
  90.     cout<<tlev-1<<endl;
  91.     for(ll i=0;i<1000000;i++)
  92.     {
  93.         if(level[i].size()==0)
  94.             break;
  95.         for(ll j=0;j<level[i].size();j++)
  96.             cout<<level[i][j]<<" ";
  97.         cout<<endl;
  98.     }
  99.     return 0;
  100. }
Success #stdin #stdout 0s 20080KB
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https://ideone.com/hiaumA
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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