Submission #345885

#TimeUsernameProblemLanguageResultExecution timeMemory
345885Alma콤보 (IOI18_combo)C++14
Compilation error
0 ms0 KiB
#include <iostream>
#include <vector>
#include <string>
#include <combo.h>
using namespace std;

string guess_sequence(int N) {

    // 100 points: N + 2 calls to "press"
    string p = "";
    string S = "";
    vector<string> v = {};
    int coins = 0;

    // guess 1st letter of S (num of calls to "press" = 2)
    p = "AB"; coins = press(p);
    if (coins >= 1) {
        p = "A"; coins = press(p);
        if (coins == 1) {S = "A"; v = {"B", "X", "Y"};}  // 1st letter = A
        else {S = "B"; v = {"A", "X", "Y"};}             // 1st letter = B
    }
    else {
        p = "X"; coins = press(p);
        if (coins == 1) {S = "X"; v = {"A", "B", "Y"};}  // 1st letter = X
        else {S = "Y"; v = {"A", "B", "X"};}             // 1st letter = Y
    }

    // guess from 2nd letter to N-1 (num of calls to "press" = N-2)
    while (S < N) {
        int i = 1;
        p = S + v[0]+v[0] + S + v[0]+v[1] + S + v[0]+v[2] + S + v[1];
        // f.e. 1st = A      p = SBB SBX SBY SX
        
        coins = press(p);
        if (coins == i+2) {S += v[0];}        // next letter = B  v[0]
        else if (coins == i+1) {S += v[1];}   // next letter = X  v[1]
        else {S += v[2];}                     // next letter = Y  v[2]
        i++;
    }

    // guess last letter of S (num of calls to "press" = 2)
    p = S + v[0]; coins = press(p);
    if (coins == N) {S += v[0];}
    else {
        p = S + v[1]; coins = press(p);
        if (coins == N) {S += v[1];}
        else {S += v[2];}
    }

    // total of calls to "press" = 2 + N-2 + 2 = (N + 2)
    return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:29:14: error: no match for 'operator<' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
   29 |     while (S < N) {
      |            ~ ^ ~
      |            |   |
      |            |   int
      |            std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:489:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)'
  489 |     operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:489:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::pair<_T1, _T2>'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:366:5: note: candidate: 'template<class _Iterator> bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
  366 |     operator<(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:366:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:404:5: note: candidate: 'template<class _IteratorL, class _IteratorR> bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
  404 |     operator<(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:404:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1451:5: note: candidate: 'template<class _IteratorL, class _IteratorR> bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
 1451 |     operator<(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1451:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1507:5: note: candidate: 'template<class _Iterator> bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
 1507 |     operator<(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1507:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6267:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)'
 6267 |     operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6267:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'int'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6280:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)'
 6280 |     operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6280:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   mismatched types 'const _CharT*' and 'int'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6292:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)'
 6292 |     operator<(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6292:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   mismatched types 'const _CharT*' and 'std::__cxx11::basic_string<char>'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/bits/ios_base.h:46,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/system_error:252:3: note: candidate: 'bool std::operator<(const std::error_code&, const std::error_code&)'
  252 |   operator<(const error_code& __lhs, const error_code& __rhs) noexcept
      |   ^~~~~~~~
/usr/include/c++/10/system_error:252:31: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const std::error_code&'
  252 |   operator<(const error_code& __lhs, const error_code& __rhs) noexcept
      |             ~~~~~~~~~~~~~~~~~~^~~~~
/usr/include/c++/10/system_error:379:3: note: candidate: 'bool std::operator<(const std::error_condition&, const std::error_condition&)'
  379 |   operator<(const error_condition& __lhs,
      |   ^~~~~~~~
/usr/include/c++/10/system_error:379:36: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const std::error_condition&'
  379 |   operator<(const error_condition& __lhs,
      |             ~~~~~~~~~~~~~~~~~~~~~~~^~~~~
In file included from /usr/include/c++/10/vector:67,
                 from combo.cpp:2:
/usr/include/c++/10/bits/stl_vector.h:1930:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator<(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)'
 1930 |     operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1930:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::vector<_Tp, _Alloc>'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)'
 1096 |     operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
   29 |     while (S < N) {
      |                ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/ostream:38,
                 from /usr/include/c++/10/iostream:39,
                 from combo.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note: candidate: 'template<class _Iterator, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)'
 1104 |     operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note:   template argument deduction/substitution failed:
combo.cpp:29:16: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
   29 |     while (S < N) {
      |                ^