Submission #714382

#	Time	Username	Problem	Language	Result	Execution time	Memory
714382		vjudge1	Art Collections (BOI22_art)	C++17	Compilation error	0 ms	0 KiB

art

#include <bits/stdc++.h>
#include "art.h"
using namespace std;
void solve(int n){
    vector<int>v(n);
    for(int i = 0;i < n;++i)v[i] = i + 1;
    vector<int>num_of_upper(n + 1), num_of_lower(n + 1);
    int c = publish(v);
    for(int i = 0;i < n;++i){
        vector<int>tempo(n);
        int indx = 0;
        for(int j = 1;j <= n;++j){
            if(j != v[i])tempo[indx++] = j;
        }
        tempo.back(v[i]);
        int cprime = publish(tempo);
        num_of_lower[v[i]] = (n + cprime - c - v[i])/ 2;
        num_of_upper[v[i]] = num_of_lower[v[i]] - cprime + c;
    }
    for(int i = 0;i < n;++i){
        for(int j = 1;j <= n;++j){
            if(num_of_upper[j] == i)v[i] = j;
        }
    }
    answer(v);
}

Compilation message (stderr)

art.cpp: In function 'void solve(int)':
art.cpp:15:24: error: no matching function for call to 'std::vector<int>::back(__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&)'
   15 |         tempo.back(v[i]);
      |                        ^
In file included from /usr/include/c++/10/vector:67,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from art.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1143:7: note: candidate: 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::back() [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::reference = int&]'
 1143 |       back() _GLIBCXX_NOEXCEPT
      |       ^~~~
/usr/include/c++/10/bits/stl_vector.h:1143:7: note:   candidate expects 0 arguments, 1 provided
/usr/include/c++/10/bits/stl_vector.h:1154:7: note: candidate: 'std::vector<_Tp, _Alloc>::const_reference std::vector<_Tp, _Alloc>::back() const [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::const_reference = const int&]'
 1154 |       back() const _GLIBCXX_NOEXCEPT
      |       ^~~~
/usr/include/c++/10/bits/stl_vector.h:1154:7: note:   candidate expects 0 arguments, 1 provided
interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~