Submission #1166082

#	Time	Username	Problem	Language	Result	Execution time	Memory
1166082		12345678	Highway design (CEOI12_highway)	C++20	47 / 100	1 ms	584 KiB

highway

#include <bits/stdc++.h>
#include "office.h"

using namespace std;

const int nx=1e5+5;

int n, a, b, t[nx];
vector<int> v;

int main()
{
    n=GetN();
    for (int i=1; i<=5; i++)
    {
        for (int j=i+1; j<=5; j++)
        {
            for (int k=j+1; k<=5; k++)
            {
                if (isOnLine(i, j, k))
                {
                    t[i]=t[j]=t[k]=1;
                    a=i, b=j;
                }
            }
        }
    }
    for (int i=1; i<=5; i++) if (!t[i]) v.push_back(t[i]);
    for (int i=6; i+1<=n; i+=2)
    {
        if (v.size()>=2) break;
        if (isOnLine(a, i, i+1)) continue;
        if (isOnLine(a, b, i)) v.push_back(i+1);
        else v.push_back(i); 
    }
    if (v.size()<2) v.push_back(n);
    Answer(a, b, v[0], v[1]);
}

Compilation message (stderr)

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: 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: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: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: 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);
      |     ~~~~~^~~~~~~~~~~

• Subtask 1: 47 / 100