Submission #163137

#	Time	Username	Problem	Language	Result	Execution time	Memory
163137		reda	Highway design (CEOI12_highway)	C++14	0 / 100	4 ms	760 KiB

highway

#include<bits/stdc++.h>
#include "office.h"
using namespace std ; 
int main ()
{
    int  h ;
    int N = GetN();
    int ona ,onb ,toa,tob;
    for(int i =1 ;i<=N-1;i++)
    {
        for(int j = i+1 ;j<=N-1;j++)
        {
          for(int k = j+1 ;k<=N;k++)
          {
              if(isOnLine(i,j,k)){ona=i;onb=j;break;}
              else {h=k;}
          }
        }
    }
    for(int i = 1;i<=N-1;i++)
    {
        for(int j =i+1;j<=N;j++)
        {
          if(isOnLine(h,i,j)){toa=h;tob=j;break;}
        }
    }
    Answer(ona,onb,toa,tob);
 return 0 ;
}

Compilation message (stderr)

highway.cpp: In function 'int main()':
highway.cpp:27:11: warning: 'onb' may be used uninitialized in this function [-Wmaybe-uninitialized]
     Answer(ona,onb,toa,tob);
     ~~~~~~^~~~~~~~~~~~~~~~~
highway.cpp:27:11: warning: 'ona' may be used uninitialized in this function [-Wmaybe-uninitialized]
highway.cpp:27:11: warning: 'tob' may be used uninitialized in this function [-Wmaybe-uninitialized]
highway.cpp:27:11: warning: 'toa' may be used uninitialized in this function [-Wmaybe-uninitialized]
highway.cpp:24:22: warning: 'h' may be used uninitialized in this function [-Wmaybe-uninitialized]
           if(isOnLine(h,i,j)){toa=h;tob=j;break;}
              ~~~~~~~~^~~~~~~
office.c: In function 'int isOnLine(int, int, int)':
office.c:85:29: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
     _Fin(0, "Protocol error");
                             ^
office.c:88:29: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
     _Fin(0, "Protocol error");
                             ^
office.c:92:37: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
     _Fin(false, "Too many questions");
                                     ^
office.c:83:7: warning: unused variable 'i' [-Wunused-variable]
   int i;
       ^
office.c: In function 'void Answer(int, int, int, int)':
office.c:123:29: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
     _Fin(0, "Protocol error");
                             ^
office.c:128:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
       if( (-_Apa[na1]==_N-3) && (na2!=na1) && (nb2!=na1) ||
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:130:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
          _Fin(true, "Correct");
                              ^
office.c:132:36: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
          _Fin(false, "Wrong answer");
                                    ^
office.c:134:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
       if( (-_Apa[na2]==_N-3) && (na1!=na2) && (nb1!=na2) ||
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:136:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
          _Fin(true, "Correct");
                              ^
office.c:138:36: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
          _Fin(false, "Wrong answer");
                                    ^
office.c:140:33: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
       _Fin(false, "Wrong answer");
                                 ^
office.c:142:23: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   _Fin(true, "Correct");
                       ^
office.c:120:27: warning: unused variable 'pont' [-Wunused-variable]
   int na1, nb1, na2, nb2, pont;
                           ^~~~
office.c: In function 'void _doInit()':
office.c:33:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &_N);
     ~~~~~^~~~~~~~~~~

• Subtask 1: 0 / 100