Submission #108470

#	Time	Username	Problem	Language	Result	Execution time	Memory
108470		abil	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
#include "combo.h"
#define int long long
#define mk make_pair
#define sc second
#define fr first
#define pb emplace_back
#define all(s) s.begin(), s.end()
#define sz(s) ( (int)s.size() )
#define Scan(a) scanf ("%I64d", &a)
#define scan(a) scanf ("%d", &a)

using namespace std;

const long long INF = (int)1e18 + 7;
const int N = (int)1e5 + 12;
const int mod = 1000000007;

string guess_sequence(int N){
      string s = "", s1 = "AB";
      int cur = press(string s1);
      if(cur == 2){
            s = "A";
      }
      else
      if(cur == 1){
            cur = press(string "A");
            if(cur == 1){
                  s = "A";
            }
            else{
                  s = "B";
            }
      }
      else{
            s1 = "XY";
            int cur = press(string s1);
            if(cur == 2){
                  s = "X";
            }
            else
            if(cur == 1){
                  cur = press(string "X");
                  if(cur == 1){
                        s = "X";
                  }
                  else{
                        s = "Y";
                  }
            }
      }
      char ch = s[0];
      if(s.size() == N){
            return s;
      }
      if(ch == 'A'){
            while(s.size() < N){
                  string s1 = s;
                  s1.pb('B');
                  s1.pb('X');
                  s1 = s1 + s;
                  s1.pb('B');
                  s1.pb('Y');
                  s1 = s1 + s;
                  s1.pb('Y');
                  cur = press(string s1);
                  if(cur == s.size()){
                        s.pb('X');
                  }
                  else
                  if(cur == s.size() + 1){
                        s.pb('Y');
                  }
                  else{
                        s.pb('B');
                  }
            }
            return s;
      }
      if(ch == 'B'){
            while(s.size() < N){
                  string s1 = s;
                  s1.pb('A');
                  s1.pb('X');
                  s1 = s1 + s;
                  s1.pb('A');
                  s1.pb('Y');
                  s1 = s1 + s;
                  s1.pb('Y');
                  cur = press(string s1);
                  if(cur == s.size()){
                        s.pb('X');
                  }
                  else
                  if(cur == s.size() + 1){
                        s.pb('Y');
                  }
                  else{
                        s.pb('A');
                  }
            }
            return s;
      }
      if(ch == 'X'){
            while(s.size() < N){
                  string s1 = s;
                  s1.pb('B');
                  s1.pb('A');
                  s1 = s1 + s;
                  s1.pb('B');
                  s1.pb('Y');
                  s1 = s1 + s;
                  s1.pb('Y');
                  cur = press(string s1);
                  if(cur == s.size()){
                        s.pb('A');
                  }
                  else
                  if(cur == s.size() + 1){
                        s.pb('Y');
                  }
                  else{
                        s.pb('B');
                  }
            }
            return s;
      }
      if(ch == 'Y'){
            while(s.size() < N){
                  string s1 = s;
                  s1.pb('B');
                  s1.pb('X');
                  s1 = s1 + s;
                  s1.pb('B');
                  s1.pb('A');
                  s1 = s1 + s;
                  s1.pb('A');
                  cur = press(string s1);
                  if(cur == s.size()){
                        s.pb('X');
                  }
                  else
                  if(cur == s.size() + 1){
                        s.pb('A');
                  }
                  else{
                        s.pb('B');
                  }
            }
            return s;
      }

}
main(){

}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(long long int)':
combo.cpp:21:30: error: expected primary-expression before 's1'
   21 |       int cur = press(string s1);
      |                              ^~
combo.cpp:27:32: error: expected primary-expression before string constant
   27 |             cur = press(string "A");
      |                                ^~~
combo.cpp:37:36: error: expected primary-expression before 's1'
   37 |             int cur = press(string s1);
      |                                    ^~
combo.cpp:43:38: error: expected primary-expression before string constant
   43 |                   cur = press(string "X");
      |                                      ^~~
combo.cpp:53:19: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   53 |       if(s.size() == N){
      |          ~~~~~~~~~^~~~
combo.cpp:57:28: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   57 |             while(s.size() < N){
      |                   ~~~~~~~~~^~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:59:22: note: in expansion of macro 'pb'
   59 |                   s1.pb('B');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:60:22: note: in expansion of macro 'pb'
   60 |                   s1.pb('X');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:62:22: note: in expansion of macro 'pb'
   62 |                   s1.pb('B');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:63:22: note: in expansion of macro 'pb'
   63 |                   s1.pb('Y');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:65:22: note: in expansion of macro 'pb'
   65 |                   s1.pb('Y');
      |                      ^~
combo.cpp:66:38: error: expected primary-expression before 's1'
   66 |                   cur = press(string s1);
      |                                      ^~
combo.cpp:67:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |                   if(cur == s.size()){
      |                      ~~~~^~~~~~~~~~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:68:27: note: in expansion of macro 'pb'
   68 |                         s.pb('X');
      |                           ^~
combo.cpp:71:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |                   if(cur == s.size() + 1){
      |                      ~~~~^~~~~~~~~~~~~~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:72:27: note: in expansion of macro 'pb'
   72 |                         s.pb('Y');
      |                           ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:75:27: note: in expansion of macro 'pb'
   75 |                         s.pb('B');
      |                           ^~
combo.cpp:81:28: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   81 |             while(s.size() < N){
      |                   ~~~~~~~~~^~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:83:22: note: in expansion of macro 'pb'
   83 |                   s1.pb('A');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:84:22: note: in expansion of macro 'pb'
   84 |                   s1.pb('X');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:86:22: note: in expansion of macro 'pb'
   86 |                   s1.pb('A');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:87:22: note: in expansion of macro 'pb'
   87 |                   s1.pb('Y');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:89:22: note: in expansion of macro 'pb'
   89 |                   s1.pb('Y');
      |                      ^~
combo.cpp:90:38: error: expected primary-expression before 's1'
   90 |                   cur = press(string s1);
      |                                      ^~
combo.cpp:91:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |                   if(cur == s.size()){
      |                      ~~~~^~~~~~~~~~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:92:27: note: in expansion of macro 'pb'
   92 |                         s.pb('X');
      |                           ^~
combo.cpp:95:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |                   if(cur == s.size() + 1){
      |                      ~~~~^~~~~~~~~~~~~~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:96:27: note: in expansion of macro 'pb'
   96 |                         s.pb('Y');
      |                           ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:99:27: note: in expansion of macro 'pb'
   99 |                         s.pb('A');
      |                           ^~
combo.cpp:105:28: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
  105 |             while(s.size() < N){
      |                   ~~~~~~~~~^~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:107:22: note: in expansion of macro 'pb'
  107 |                   s1.pb('B');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:108:22: note: in expansion of macro 'pb'
  108 |                   s1.pb('A');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:110:22: note: in expansion of macro 'pb'
  110 |                   s1.pb('B');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:111:22: note: in expansion of macro 'pb'
  111 |                   s1.pb('Y');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:113:22: note: in expansion of macro 'pb'
  113 |                   s1.pb('Y');
      |                      ^~
combo.cpp:114:38: error: expected primary-expression before 's1'
  114 |                   cur = press(string s1);
      |                                      ^~
combo.cpp:115:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  115 |                   if(cur == s.size()){
      |                      ~~~~^~~~~~~~~~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:116:27: note: in expansion of macro 'pb'
  116 |                         s.pb('A');
      |                           ^~
combo.cpp:119:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  119 |                   if(cur == s.size() + 1){
      |                      ~~~~^~~~~~~~~~~~~~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:120:27: note: in expansion of macro 'pb'
  120 |                         s.pb('Y');
      |                           ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:123:27: note: in expansion of macro 'pb'
  123 |                         s.pb('B');
      |                           ^~
combo.cpp:129:28: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
  129 |             while(s.size() < N){
      |                   ~~~~~~~~~^~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:131:22: note: in expansion of macro 'pb'
  131 |                   s1.pb('B');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:132:22: note: in expansion of macro 'pb'
  132 |                   s1.pb('X');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:134:22: note: in expansion of macro 'pb'
  134 |                   s1.pb('B');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:135:22: note: in expansion of macro 'pb'
  135 |                   s1.pb('A');
      |                      ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:137:22: note: in expansion of macro 'pb'
  137 |                   s1.pb('A');
      |                      ^~
combo.cpp:138:38: error: expected primary-expression before 's1'
  138 |                   cur = press(string s1);
      |                                      ^~
combo.cpp:139:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  139 |                   if(cur == s.size()){
      |                      ~~~~^~~~~~~~~~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:140:27: note: in expansion of macro 'pb'
  140 |                         s.pb('X');
      |                           ^~
combo.cpp:143:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  143 |                   if(cur == s.size() + 1){
      |                      ~~~~^~~~~~~~~~~~~~~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:144:27: note: in expansion of macro 'pb'
  144 |                         s.pb('A');
      |                           ^~
combo.cpp:7:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'emplace_back'
    7 | #define pb emplace_back
      |            ^~~~~~~~~~~~
combo.cpp:147:27: note: in expansion of macro 'pb'
  147 |                         s.pb('B');
      |                           ^~
combo.cpp: At global scope:
combo.cpp:154:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  154 | main(){
      | ^~~~
combo.cpp: In function 'std::string guess_sequence(long long int)':
combo.cpp:20:27: warning: control reaches end of non-void function [-Wreturn-type]
   20 |       string s = "", s1 = "AB";
      |                           ^~~~