Submission #569489

#	Time	Username	Problem	Language	Result	Execution time	Memory
569489		Turkhuu	Road Closures (APIO21_roads)	C++17	Compilation error	0 ms	0 KiB

roads

#include "roads.h"
#include <bits/stdc++.h>
std::vector<long long> minimum_closure_costs(int n, std::vector<int> u, std::vector<int> v, std::vector<int> w){
  bool subtask1 = true;
  for(int i = 0; i < n - 1; i++){
    if(u[i] != 0){
      subtask1 = false;
    }
  }
  if(subtask1){
    sort(w.begin(), w.end());
    std::vector<long long> ans(n);
    for(int i = 0; i < n - 1; i++){
      ans[n - i - 2] = ans[n - i - 1] + w[i];
    }
    return ans;
  }
  bool subtask2 = true;
  for(int i = 0; i < n - 1; i++){
    if(u[i] != i || v[i] != i + 1){
      subtask2 = false;
    }
  }
  if(subtask2){
    std::vector<long long> ans(n);
    ans[0] = accumulate(w.begin(), w.end(), 0LL);
    vector dp(n, vector<long long>(2));
    for(int i = 0; i < n - 1; i++){
      dp[i][0] = (i == 0 ? 0 : min(dp[i - 1][0], dp[i - 1][1])) + w[i];
      dp[i][1] = (i == 0 ? 0 : dp[i - 1][0]) + w[i];
    }
    ans[1] = min(dp.back()[0], dp.back()[1]);
    return ans;
  }
  return std::vector<long long>(n, 0);
}

Compilation message (stderr)

roads.cpp: In function 'std::vector<long long int> minimum_closure_costs(int, std::vector<int>, std::vector<int>, std::vector<int>)':
roads.cpp:27:5: error: 'vector' was not declared in this scope
   27 |     vector dp(n, vector<long long>(2));
      |     ^~~~~~
roads.cpp:27:5: note: suggested alternatives:
In file included from /usr/include/c++/10/vector:67,
                 from roads.h:1,
                 from roads.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:389:11: note:   'std::vector'
  389 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
In file included from roads.h:1,
                 from roads.cpp:1:
/usr/include/c++/10/vector:86:13: note:   'std::pmr::vector'
   86 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
roads.cpp:29:7: error: 'dp' was not declared in this scope
   29 |       dp[i][0] = (i == 0 ? 0 : min(dp[i - 1][0], dp[i - 1][1])) + w[i];
      |       ^~
roads.cpp:29:32: error: 'min' was not declared in this scope; did you mean 'std::min'?
   29 |       dp[i][0] = (i == 0 ? 0 : min(dp[i - 1][0], dp[i - 1][1])) + w[i];
      |                                ^~~
      |                                std::min
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from roads.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:3474:5: note: 'std::min' declared here
 3474 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
roads.cpp:32:18: error: 'dp' was not declared in this scope
   32 |     ans[1] = min(dp.back()[0], dp.back()[1]);
      |                  ^~
roads.cpp:32:14: error: 'min' was not declared in this scope; did you mean 'std::min'?
   32 |     ans[1] = min(dp.back()[0], dp.back()[1]);
      |              ^~~
      |              std::min
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from roads.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:3474:5: note: 'std::min' declared here
 3474 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~