Submission #530845

#	Time	Username	Problem	Language	Result	Execution time	Memory
530845		M1v1savva	Arranging Shoes (IOI19_shoes)	C++17	Compilation error	0 ms	0 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

shoes

#include "shoes.h" #include <bits/stdc++.h> #define sz(x) (int)(x).size() #define forn(i, x) for (int i = 0; i < (int)x; i++) #define pb push_back #define rforn(i, x) for (int i = (int)x - 1; i >= 0; i--) #define pii pair<int, int> #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define ff first #define ss second using namespace std; template<class T> void print(T a) { for (auto x : a) cout << x << ' '; cout << endl; } //signed main() { //freopen("test.txt", "r", stdin); // int n; // cin >> n; // vector<int> a(n * 2); // forn (i, n * 2) // cin >> a[i]; long long count_swaps(int S[]) { vector<int> a; int n = distance(begin(S), end(S)) / 2; forn (i, 2 * n) a.pb(S[i]); map<int, int> scores; map<int, int> prev; long long ans = 0; forn (i, 2 * n) { int val = a[i]; scores[abs(val)]++; if (scores[abs(val)] % 2 == 0) { ans += i - prev[abs(val)]; if (val > 0) ans--; } else { prev[abs(val)] = i; } } return ans; //cout << ans << '\n'; //return 0; }

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(int*)':
shoes.cpp:33:26: error: no matching function for call to 'begin(int*&)'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                          ^
In file included from /usr/include/c++/10/bits/stl_vector.h:63,
                 from /usr/include/c++/10/vector:67,
                 from shoes.h:5,
                 from shoes.cpp:1:
/usr/include/c++/10/initializer_list:90:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::begin(std::initializer_list<_Tp>)'
   90 |     begin(initializer_list<_Tp> __ils) noexcept
      |     ^~~~~
/usr/include/c++/10/initializer_list:90:5: note:   template argument deduction/substitution failed:
shoes.cpp:33:26: note:   mismatched types 'std::initializer_list<_Tp>' and 'int*'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                          ^
In file included from /usr/include/c++/10/vector:69,
                 from shoes.h:5,
                 from shoes.cpp:1:
/usr/include/c++/10/bits/range_access.h:51:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&)'
   51 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/usr/include/c++/10/bits/range_access.h:51:5: note:   template argument deduction/substitution failed:
/usr/include/c++/10/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&) [with _Container = int*]':
shoes.cpp:33:26:   required from here
/usr/include/c++/10/bits/range_access.h:51:50: error: request for member 'begin' in '__cont', which is of non-class type 'int*'
   51 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |                                           ~~~~~~~^~~~~
/usr/include/c++/10/bits/range_access.h:61:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&)'
   61 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/usr/include/c++/10/bits/range_access.h:61:5: note:   template argument deduction/substitution failed:
/usr/include/c++/10/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&) [with _Container = int*]':
shoes.cpp:33:26:   required from here
/usr/include/c++/10/bits/range_access.h:61:56: error: request for member 'begin' in '__cont', which is of non-class type 'int* const'
   61 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |                                                 ~~~~~~~^~~~~
/usr/include/c++/10/bits/range_access.h:90:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::begin(_Tp (&)[_Nm])'
   90 |     begin(_Tp (&__arr)[_Nm])
      |     ^~~~~
/usr/include/c++/10/bits/range_access.h:90:5: note:   template argument deduction/substitution failed:
shoes.cpp:33:26: note:   mismatched types '_Tp [_Nm]' and 'int*'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                          ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from shoes.cpp:2:
/usr/include/c++/10/valarray:1214:5: note: candidate: 'template<class _Tp> _Tp* std::begin(std::valarray<_Tp>&)'
 1214 |     begin(valarray<_Tp>& __va)
      |     ^~~~~
/usr/include/c++/10/valarray:1214:5: note:   template argument deduction/substitution failed:
shoes.cpp:33:26: note:   mismatched types 'std::valarray<_Tp>' and 'int*'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                          ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from shoes.cpp:2:
/usr/include/c++/10/valarray:1224:5: note: candidate: 'template<class _Tp> const _Tp* std::begin(const std::valarray<_Tp>&)'
 1224 |     begin(const valarray<_Tp>& __va)
      |     ^~~~~
/usr/include/c++/10/valarray:1224:5: note:   template argument deduction/substitution failed:
shoes.cpp:33:26: note:   mismatched types 'const std::valarray<_Tp>' and 'int*'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                          ^
shoes.cpp:33:34: error: no matching function for call to 'end(int*&)'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                                  ^
In file included from /usr/include/c++/10/bits/stl_vector.h:63,
                 from /usr/include/c++/10/vector:67,
                 from shoes.h:5,
                 from shoes.cpp:1:
/usr/include/c++/10/initializer_list:101:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)'
  101 |     end(initializer_list<_Tp> __ils) noexcept
      |     ^~~
/usr/include/c++/10/initializer_list:101:5: note:   template argument deduction/substitution failed:
shoes.cpp:33:34: note:   mismatched types 'std::initializer_list<_Tp>' and 'int*'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                                  ^
In file included from /usr/include/c++/10/vector:69,
                 from shoes.h:5,
                 from shoes.cpp:1:
/usr/include/c++/10/bits/range_access.h:71:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)'
   71 |     end(_Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/10/bits/range_access.h:71:5: note:   template argument deduction/substitution failed:
/usr/include/c++/10/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&) [with _Container = int*]':
shoes.cpp:33:34:   required from here
/usr/include/c++/10/bits/range_access.h:71:48: error: request for member 'end' in '__cont', which is of non-class type 'int*'
   71 |     end(_Container& __cont) -> decltype(__cont.end())
      |                                         ~~~~~~~^~~
/usr/include/c++/10/bits/range_access.h:81:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)'
   81 |     end(const _Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/10/bits/range_access.h:81:5: note:   template argument deduction/substitution failed:
/usr/include/c++/10/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&) [with _Container = int*]':
shoes.cpp:33:34:   required from here
/usr/include/c++/10/bits/range_access.h:81:54: error: request for member 'end' in '__cont', which is of non-class type 'int* const'
   81 |     end(const _Container& __cont) -> decltype(__cont.end())
      |                                               ~~~~~~~^~~
/usr/include/c++/10/bits/range_access.h:100:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])'
  100 |     end(_Tp (&__arr)[_Nm])
      |     ^~~
/usr/include/c++/10/bits/range_access.h:100:5: note:   template argument deduction/substitution failed:
shoes.cpp:33:34: note:   mismatched types '_Tp [_Nm]' and 'int*'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                                  ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from shoes.cpp:2:
/usr/include/c++/10/valarray:1234:5: note: candidate: 'template<class _Tp> _Tp* std::end(std::valarray<_Tp>&)'
 1234 |     end(valarray<_Tp>& __va)
      |     ^~~
/usr/include/c++/10/valarray:1234:5: note:   template argument deduction/substitution failed:
shoes.cpp:33:34: note:   mismatched types 'std::valarray<_Tp>' and 'int*'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                                  ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
                 from shoes.cpp:2:
/usr/include/c++/10/valarray:1244:5: note: candidate: 'template<class _Tp> const _Tp* std::end(const std::valarray<_Tp>&)'
 1244 |     end(const valarray<_Tp>& __va)
      |     ^~~
/usr/include/c++/10/valarray:1244:5: note:   template argument deduction/substitution failed:
shoes.cpp:33:34: note:   mismatched types 'const std::valarray<_Tp>' and 'int*'
   33 |  int n = distance(begin(S), end(S)) / 2;
      |                                  ^