Submission #469715

# Submission time Handle Problem Language Result Execution time Memory
469715 2021-09-01T16:11:33 Z blue Cat in a tree (BOI17_catinatree) C++17
Compilation error
0 ms 0 KB
#include <bits/stdc++.h>;#define z size();using namespace std;int N,D,x,q,i;deque<int>c[200000];
deque<int>d(int u){deque<int>q(1,1);for(int v:c[u]){auto a=d(v);if(q.z<a.z)swap(q,a);for(i=0;i<a.z;i++)q[i]=max(q[i],max(a[i]+(D-i<q.z?q[max(D-i,i)]:0),q[i]+(D-i<a.z?a[max(D-i,i)]:0)));for(i=a.z;i>=0;i--)if(i+1<q.z)q[i]=max(q[i],q[i+1]);}q.push_front(q.front());return q;}
int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}

Compilation message

catinatree.cpp:1:25: warning: extra tokens at end of #include directive
    1 | #include <bits/stdc++.h>;#define z size();using namespace std;int N,D,x,q,i;deque<int>c[200000];
      |                         ^
catinatree.cpp:2:1: error: 'deque' does not name a type
    2 | deque<int>d(int u){deque<int>q(1,1);for(int v:c[u]){auto a=d(v);if(q.z<a.z)swap(q,a);for(i=0;i<a.z;i++)q[i]=max(q[i],max(a[i]+(D-i<q.z?q[max(D-i,i)]:0),q[i]+(D-i<a.z?a[max(D-i,i)]:0)));for(i=a.z;i>=0;i--)if(i+1<q.z)q[i]=max(q[i],q[i+1]);}q.push_front(q.front());return q;}
      | ^~~~~
catinatree.cpp: In function 'int main()':
catinatree.cpp:3:12: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |            ^~~
      |            std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:75,
                 from catinatree.cpp:1:
/usr/include/c++/10/iostream:60:18: note: 'std::cin' declared here
   60 |   extern istream cin;  /// Linked to standard input
      |                  ^~~
catinatree.cpp:3:17: error: 'N' was not declared in this scope
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                 ^
catinatree.cpp:3:20: error: 'D' was not declared in this scope
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                    ^
catinatree.cpp:3:26: error: 'i' was not declared in this scope
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                          ^
catinatree.cpp:3:44: error: 'x' was not declared in this scope
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                                            ^
catinatree.cpp:3:46: error: 'c' was not declared in this scope
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                                              ^
catinatree.cpp:3:75: error: 'd' was not declared in this scope
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                                                                           ^
catinatree.cpp:3:80: error: 'q' was not declared in this scope
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                                                                                ^
catinatree.cpp:3:82: error: 'max' was not declared in this scope; did you mean 'std::max'?
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                                                                                  ^~~
      |                                                                                  std::max
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from catinatree.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: 'std::max' declared here
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
catinatree.cpp:3:91: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                                                                                           ^~~~
      |                                                                                           std::cout
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:75,
                 from catinatree.cpp:1:
/usr/include/c++/10/iostream:61:18: note: 'std::cout' declared here
   61 |   extern ostream cout;  /// Linked to standard output
      |                  ^~~~
catinatree.cpp:3:97: error: 'q' was not declared in this scope
    3 | int main(){cin>>N>>D;for(i=1;i<N;i++){cin>>x;c[x].push_back(i);}for(int r:d(0))q=max(q,r);cout<<q;}
      |                                                                                                 ^