Submission #725327

#	Time	Username	Problem	Language	Result	Execution time	Memory
725327		groshi	Highway design (CEOI12_highway)	C++17	Compilation error	0 ms	0 KiB

highway

#include<bits/stdc++.h>
#include "office.h"
#define int long long
using namespace std;
int GetN(void);
int isOnLine(int x,int y,int z);
void Answer(int a1,int b1,int a2,int b2);
/*int GetN()
{
    int n;
    cin>>n;
    return n;
}
int isOnLine(int x,int y,int z){
    cout<<x<<" "<<y<<" "<<z<<"\n";
    int co;
    cin>>co;
    return co;
}
void Answer(int a1,int b1,int a2,int b2){
    cout<<a1<<" "<<b1<<" "<<a2<<" "<<b2<<"\n";
}*/
int a1=0,b1=0,a2=0,b2=0;
int n;
void dodaj(int kto)
{
    if(a2==0)
        a2=kto;
    else b2=kto;
}
void wyznacz(int x)
{
    for(int i=x;i<=n;i+=2)
    {
        int co=isOnLine(a1,i,i+1);
        if(co)
            continue;
        co=isOnLine(a1,b1,i);
        if(co)
            dodaj(i+1);
        else dodaj(i);
        if(b2!=0) break;
    }
    if(b2==0)
        b2=n;
}
int32_t main()
{
    //cin.tie(0);
    //cout.tie(0);
    //ios_base::sync_with_stdio(0);
    n=GetN();
    int co=isOnLine(1,2,3);
    if(co==1)
    {
        a1=1;
        b1=2;
        wyznacz(4);
    }
    else{
        int co=isOnLine(1,2,4);
        if(co==1)
        {
            a1=1;
            b1=2;
        }
        else{
            co=isOnLine(1,3,4);
            if(co)
            {
                a1=1;
                b1=3;
            }
            else {
                a1=2;
                b1=3;
            }
        }
        wyznacz(5);
    }
    Answer(a1,b1,a2,b2);
    return 0;
}

Compilation message (stderr)

highway.cpp:5:5: error: ambiguating new declaration of 'long long int GetN()'
    5 | int GetN(void);
      |     ^~~~
In file included from highway.cpp:2:
office.h:1:12: note: old declaration 'int GetN()'
    1 | extern int GetN();
      |            ^~~~
office.c: In function 'int isOnLine(int, int, int)':
office.c:85:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   85 |     _Fin(0, "Protocol error");
      |             ^~~~~~~~~~~~~~~~
office.c:88:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   88 |     _Fin(0, "Protocol error");
      |             ^~~~~~~~~~~~~~~~
office.c:92:17: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   92 |     _Fin(false, "Too many questions");
      |                 ^~~~~~~~~~~~~~~~~~~~
office.c:83:7: warning: unused variable 'i' [-Wunused-variable]
   83 |   int i;
      |       ^
office.c: In function 'void Answer(int, int, int, int)':
office.c:123:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  123 |     _Fin(0, "Protocol error");
      |             ^~~~~~~~~~~~~~~~
office.c:128:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  128 |       if( (-_Apa[na1]==_N-3) && (na2!=na1) && (nb2!=na1) ||
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:130:21: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  130 |          _Fin(true, "Correct");
      |                     ^~~~~~~~~
office.c:132:22: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  132 |          _Fin(false, "Wrong answer");
      |                      ^~~~~~~~~~~~~~
office.c:134:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  134 |       if( (-_Apa[na2]==_N-3) && (na1!=na2) && (nb1!=na2) ||
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:136:21: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  136 |          _Fin(true, "Correct");
      |                     ^~~~~~~~~
office.c:138:22: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  138 |          _Fin(false, "Wrong answer");
      |                      ^~~~~~~~~~~~~~
office.c:140:19: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  140 |       _Fin(false, "Wrong answer");
      |                   ^~~~~~~~~~~~~~
office.c:142:14: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  142 |   _Fin(true, "Correct");
      |              ^~~~~~~~~
office.c:120:27: warning: unused variable 'pont' [-Wunused-variable]
  120 |   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]
   33 |     scanf("%d", &_N);
      |     ~~~~~^~~~~~~~~~~