Submission #1265013

#	Time	Username	Problem	Language	Result	Execution time	Memory
1265013		nicolo_010	Tree (IOI24_tree)	C++20	Compilation error	0 ms	0 KiB

tree

#include "tree.h"
#include <bits/stdc++.h>
using namespace std;
template <typename T>
using v = vector<T>;
using ll = long long;
#define rep(i, k, n) for (int i=k; i<n; i++)

#define cerr if(0) cerr

v<int> p, w;
int N;
v<v<int>> adj;
v<int> leaf;
v<int> isleaf;

void dfs(int n, int p=-1) {
  bool can = true;
  for (auto x : adj[n]) {
    if (x == p) continue;
    can = false;
    dfs(x, n);
  }
  if (can) leaf.push_back(n);
}

void init(std::vector<int> P, std::vector<int> W) {
  p = P;
  w = W;
  N = (int)p.size();
  adj.resize(N);
  rep(i, 1, N) {
    //cerr << i << endl;
    adj[P[i]].push_back(i);
    adj[i].push_back(P[i]);
  }
  isleaf.assign(N, 0);
  dfs(0);
  for (auto x : leaf) isleaf[x]=1;
}

long long query(int L, int R) {
  ll k = leaf.size();
  return k*L+max(0, k*L-R);
}

Compilation message (stderr)

tree.cpp: In function 'long long int query(int, int)':
tree.cpp:44:17: error: no matching function for call to 'max(int, ll)'
   44 |   return k*L+max(0, k*L-R);
      |              ~~~^~~~~~~~~~
In file included from /usr/include/c++/11/vector:60,
                 from tree.h:1,
                 from tree.cpp:1:
/usr/include/c++/11/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/11/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
tree.cpp:44:17: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   44 |   return k*L+max(0, k*L-R);
      |              ~~~^~~~~~~~~~
In file included from /usr/include/c++/11/vector:60,
                 from tree.h:1,
                 from tree.cpp:1:
/usr/include/c++/11/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/11/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
tree.cpp:44:17: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   44 |   return k*L+max(0, k*L-R);
      |              ~~~^~~~~~~~~~
In file included from /usr/include/c++/11/vector:62,
                 from tree.h:1,
                 from tree.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:3461:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3461 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3461:5: note:   template argument deduction/substitution failed:
tree.cpp:44:17: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   44 |   return k*L+max(0, k*L-R);
      |              ~~~^~~~~~~~~~
In file included from /usr/include/c++/11/vector:62,
                 from tree.h:1,
                 from tree.cpp:1:
/usr/include/c++/11/bits/stl_algo.h:3467:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3467 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/11/bits/stl_algo.h:3467:5: note:   template argument deduction/substitution failed:
tree.cpp:44:17: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   44 |   return k*L+max(0, k*L-R);
      |              ~~~^~~~~~~~~~