Submission #951110

#	Time	Username	Problem	Language	Result	Execution time	Memory
951110		star	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include <bits/stdc++.h>
using  namespace std;

string guess_sequence( int n) {
   string p = "" , ans = "" ;
   char a, b, c, d;
   if (press( " AB " ) > 0 ) {
    c = ' X ' , d = ' Y ' ;
    press( " A " )? (a = ' A ' , b = ' B ' ) : (a = ' B ' , b = ' A ' );
  } else {
    c = ' A ' , d = ' B ' ;
    press( " X " )? (a = ' X ' , b = ' Y ' ) : (a = ' Y ' , b = ' X ' );
  }
  ans = a;
   if (n == 1 ) return ans;
   for ( int i = 1 ; i < n - 1 ; ++ i) {
    p = ans + b + b + ans + b + c + ans + b + d + ans + c;
     int bk = press(p);
     if (bk == i + 0 ) ans += d;
     if (bk = = i + 1 ) ans += c;
     if (bk == i + 2 ) ans += b;
  }
  if (press(ans + b) == n) ans += b;
   else  if (press(ans + c) == n) ans += c;
   else ans += d;
   return ans;
}

Compilation message (stderr)

combo.cpp:8:9: warning: multi-character character constant [-Wmultichar]
    8 |     c = ' X ' , d = ' Y ' ;
      |         ^~~~~
combo.cpp:8:21: warning: multi-character character constant [-Wmultichar]
    8 |     c = ' X ' , d = ' Y ' ;
      |                     ^~~~~
combo.cpp:9:26: warning: multi-character character constant [-Wmultichar]
    9 |     press( " A " )? (a = ' A ' , b = ' B ' ) : (a = ' B ' , b = ' A ' );
      |                          ^~~~~
combo.cpp:9:38: warning: multi-character character constant [-Wmultichar]
    9 |     press( " A " )? (a = ' A ' , b = ' B ' ) : (a = ' B ' , b = ' A ' );
      |                                      ^~~~~
combo.cpp:9:53: warning: multi-character character constant [-Wmultichar]
    9 |     press( " A " )? (a = ' A ' , b = ' B ' ) : (a = ' B ' , b = ' A ' );
      |                                                     ^~~~~
combo.cpp:9:65: warning: multi-character character constant [-Wmultichar]
    9 |     press( " A " )? (a = ' A ' , b = ' B ' ) : (a = ' B ' , b = ' A ' );
      |                                                                 ^~~~~
combo.cpp:11:9: warning: multi-character character constant [-Wmultichar]
   11 |     c = ' A ' , d = ' B ' ;
      |         ^~~~~
combo.cpp:11:21: warning: multi-character character constant [-Wmultichar]
   11 |     c = ' A ' , d = ' B ' ;
      |                     ^~~~~
combo.cpp:12:26: warning: multi-character character constant [-Wmultichar]
   12 |     press( " X " )? (a = ' X ' , b = ' Y ' ) : (a = ' Y ' , b = ' X ' );
      |                          ^~~~~
combo.cpp:12:38: warning: multi-character character constant [-Wmultichar]
   12 |     press( " X " )? (a = ' X ' , b = ' Y ' ) : (a = ' Y ' , b = ' X ' );
      |                                      ^~~~~
combo.cpp:12:53: warning: multi-character character constant [-Wmultichar]
   12 |     press( " X " )? (a = ' X ' , b = ' Y ' ) : (a = ' Y ' , b = ' X ' );
      |                                                     ^~~~~
combo.cpp:12:65: warning: multi-character character constant [-Wmultichar]
   12 |     press( " X " )? (a = ' X ' , b = ' Y ' ) : (a = ' Y ' , b = ' X ' );
      |                                                                 ^~~~~
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:7:8: error: 'press' was not declared in this scope
    7 |    if (press( " AB " ) > 0 ) {
      |        ^~~~~
combo.cpp:8:9: warning: overflow in conversion from 'int' to 'char' changes value from '2119712' to '' '' [-Woverflow]
    8 |     c = ' X ' , d = ' Y ' ;
      |         ^~~~~
combo.cpp:8:21: warning: overflow in conversion from 'int' to 'char' changes value from '2119968' to '' '' [-Woverflow]
    8 |     c = ' X ' , d = ' Y ' ;
      |                     ^~~~~
combo.cpp:9:26: warning: overflow in conversion from 'int' to 'char' changes value from '2113824' to '' '' [-Woverflow]
    9 |     press( " A " )? (a = ' A ' , b = ' B ' ) : (a = ' B ' , b = ' A ' );
      |                          ^~~~~
combo.cpp:9:38: warning: overflow in conversion from 'int' to 'char' changes value from '2114080' to '' '' [-Woverflow]
    9 |     press( " A " )? (a = ' A ' , b = ' B ' ) : (a = ' B ' , b = ' A ' );
      |                                      ^~~~~
combo.cpp:9:53: warning: overflow in conversion from 'int' to 'char' changes value from '2114080' to '' '' [-Woverflow]
    9 |     press( " A " )? (a = ' A ' , b = ' B ' ) : (a = ' B ' , b = ' A ' );
      |                                                     ^~~~~
combo.cpp:9:65: warning: overflow in conversion from 'int' to 'char' changes value from '2113824' to '' '' [-Woverflow]
    9 |     press( " A " )? (a = ' A ' , b = ' B ' ) : (a = ' B ' , b = ' A ' );
      |                                                                 ^~~~~
combo.cpp:11:9: warning: overflow in conversion from 'int' to 'char' changes value from '2113824' to '' '' [-Woverflow]
   11 |     c = ' A ' , d = ' B ' ;
      |         ^~~~~
combo.cpp:11:21: warning: overflow in conversion from 'int' to 'char' changes value from '2114080' to '' '' [-Woverflow]
   11 |     c = ' A ' , d = ' B ' ;
      |                     ^~~~~
combo.cpp:12:26: warning: overflow in conversion from 'int' to 'char' changes value from '2119712' to '' '' [-Woverflow]
   12 |     press( " X " )? (a = ' X ' , b = ' Y ' ) : (a = ' Y ' , b = ' X ' );
      |                          ^~~~~
combo.cpp:12:38: warning: overflow in conversion from 'int' to 'char' changes value from '2119968' to '' '' [-Woverflow]
   12 |     press( " X " )? (a = ' X ' , b = ' Y ' ) : (a = ' Y ' , b = ' X ' );
      |                                      ^~~~~
combo.cpp:12:53: warning: overflow in conversion from 'int' to 'char' changes value from '2119968' to '' '' [-Woverflow]
   12 |     press( " X " )? (a = ' X ' , b = ' Y ' ) : (a = ' Y ' , b = ' X ' );
      |                                                     ^~~~~
combo.cpp:12:65: warning: overflow in conversion from 'int' to 'char' changes value from '2119712' to '' '' [-Woverflow]
   12 |     press( " X " )? (a = ' X ' , b = ' Y ' ) : (a = ' Y ' , b = ' X ' );
      |                                                                 ^~~~~
combo.cpp:18:15: error: 'press' was not declared in this scope
   18 |      int bk = press(p);
      |               ^~~~~
combo.cpp:20:15: error: expected primary-expression before '=' token
   20 |      if (bk = = i + 1 ) ans += c;
      |               ^
combo.cpp:23:7: error: 'press' was not declared in this scope
   23 |   if (press(ans + b) == n) ans += b;
      |       ^~~~~