Submission #1172691

#	Time	Username	Problem	Language	Result	Execution time	Memory
1172691		jadai007	Crocodile's Underground City (IOI11_crocodile)	C++20	Compilation error	0 ms	0 KiB

crocodile

#include "crocodile.h"
#include <bits/stdc++.h>

using namespace std;

/*#define MAX_N 50000
#define MAX_M 10000000

static int N, M;
static int R[MAX_M][2];
static int L[MAX_M];
static int K;
static int P[MAX_N];
static int solution;

inline 
void my_assert(int e) {if (!e) abort();}

void read_input()
{
  int i;
  my_assert(3==scanf("%d %d %d",&N,&M,&K));
  for(i=0; i<M; i++)
    my_assert(3==scanf("%d %d %d",&R[i][0],&R[i][1],&L[i]));
  for(i=0; i<K; i++)
    my_assert(1==scanf("%d",&P[i]));
  my_assert(1==scanf("%d",&solution));
}
*/

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]){
    priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq;
    vector<int> vc[N];
    int dis[N];
    for(int i = 0; i < N; ++i) dis[i] = 1e9 + 7;
    for(int i = 0; i < M; ++i) vc[R[i][0]].emplace_back(R[i][1], L[i]), vc[R[i][1]].emplace_back(R[i][0], L[i]);
    dis[0] = 0;
    pq.emplace(0, 0);
    while(!pq.empty()){
        int u = pq.top().second, cnt = pq.top().first;
        pq.pop();
        if(dis[u] < cnt) continue;
        for(auto x:vc[u]){
            int v = x.first, w = x.second;
            if(dis[v] > w + cnt){
                dis[v] = w + cnt;
                pq.emplace(dis[v], v);
            }
        }
    }   
    int ans = -1;
    for(int i = 0; i < K; ++i){
        if(dis[i] == 1e9 + 7) continue;
        ans = max(ans, dis[i]);
    }
    return ans;
}
/*
int main()
{
  int ans;
  read_input();
  ans = travel_plan(N,M,R,L,K,P);
  if(ans==solution)
    printf("Correct.\n");
  else
    printf("Incorrect. Returned %d, Expected %d.\n",ans,solution);

  return 0;
}*/

Compilation message (stderr)

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:44:23: error: request for member 'first' in 'x', which is of non-class type 'int'
   44 |             int v = x.first, w = x.second;
      |                       ^~~~~
crocodile.cpp:45:25: error: 'w' was not declared in this scope
   45 |             if(dis[v] > w + cnt){
      |                         ^
In file included from /usr/include/c++/11/ext/alloc_traits.h:34,
                 from /usr/include/c++/11/bits/basic_string.h:40,
                 from /usr/include/c++/11/string:55,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from crocodile.cpp:2:
/usr/include/c++/11/bits/alloc_traits.h: In instantiation of 'static constexpr void std::allocator_traits<std::allocator<_CharT> >::construct(std::allocator_traits<std::allocator<_CharT> >::allocator_type&, _Up*, _Args&& ...) [with _Up = int; _Args = {int&, int&}; _Tp = int; std::allocator_traits<std::allocator<_CharT> >::allocator_type = std::allocator<int>]':
/usr/include/c++/11/bits/vector.tcc:115:30:   required from 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, int&}; _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::reference = int&]'
crocodile.cpp:36:56:   required from here
/usr/include/c++/11/bits/alloc_traits.h:518:28: error: no matching function for call to 'construct_at(int*&, int&, int&)'
  518 |           std::construct_at(__p, std::forward<_Args>(__args)...);
      |           ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/stl_iterator.h:85,
                 from /usr/include/c++/11/bits/stl_algobase.h:67,
                 from /usr/include/c++/11/bits/specfun.h:45,
                 from /usr/include/c++/11/cmath:1935,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from crocodile.cpp:2:
/usr/include/c++/11/bits/stl_construct.h:94:5: note: candidate: 'template<class _Tp, class ... _Args> constexpr decltype (::new(void*(0)) _Tp) std::construct_at(_Tp*, _Args&& ...)'
   94 |     construct_at(_Tp* __location, _Args&&... __args)
      |     ^~~~~~~~~~~~
/usr/include/c++/11/bits/stl_construct.h:94:5: note:   template argument deduction/substitution failed:
/usr/include/c++/11/bits/stl_construct.h: In substitution of 'template<class _Tp, class ... _Args> constexpr decltype (::new(void*(0)) _Tp) std::construct_at(_Tp*, _Args&& ...) [with _Tp = int; _Args = {int&, int&}]':
/usr/include/c++/11/bits/alloc_traits.h:518:21:   required from 'static constexpr void std::allocator_traits<std::allocator<_CharT> >::construct(std::allocator_traits<std::allocator<_CharT> >::allocator_type&, _Up*, _Args&& ...) [with _Up = int; _Args = {int&, int&}; _Tp = int; std::allocator_traits<std::allocator<_CharT> >::allocator_type = std::allocator<int>]'
/usr/include/c++/11/bits/vector.tcc:115:30:   required from 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {int&, int&}; _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::reference = int&]'
crocodile.cpp:36:56:   required from here
/usr/include/c++/11/bits/stl_construct.h:96:17: error: new initializer expression list treated as compound expression [-fpermissive]
   96 |     -> decltype(::new((void*)0) _Tp(std::declval<_Args>()...))
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~