Submission #1279772

#	Time	Username	Problem	Language	Result	Execution time	Memory
1279772		raphaelp	Highway design (CEOI12_highway)	C++20	100 / 100	2 ms	580 KiB

highway

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

using namespace std;

int getCase()
{
    bool temp = isOnLine(1, 2, 3);
    if (temp)
        return 0;
    temp = isOnLine(4, 5, 6);
    if (temp)
        return 1;
    temp = isOnLine(7, 8, 9);
    if (temp)
        return 2;
    return 3;
}

int main()
{
    int N;
    N = GetN();
    int T = getCase();
    if (T == 3)
    {
        vector<int> group1;
        for (int i = 4; i <= 6; i++)
        {
            for (int j = 7; j <= 9; j++)
            {
                if (isOnLine(1, i, j))
                {
                    group1 = {1, i, j};
                    break;
                }
            }
            if (group1 != vector<int>{})
                break;
        }
        vector<int> group2;
        for (int i = 2; i < 10; i++)
        {
            if (i == group1[1] || i == group1[2])
                continue;
            if (!isOnLine(1, group1[1], i))
                group2.push_back(i);
        }
        Answer(1, group1[1], group2[0], group2[1]);
    }
    if (T == 2)
    {
        vector<int> group2;
        for (int i = 1; i <= 6; i++)
        {
            if (!isOnLine(7, 8, i))
                group2.push_back(i);
        }
        Answer(7, 8, group2[0], group2[1]);
    }
    if (T < 2)
    {
        vector<int> group1 = {1, 2, 3};
        if (T == 1)
            group1 = {4, 5, 6};
        vector<int> group2;
        int x = 1;
        while (group2.size() < 2)
        {
            if (T == 0 && x == 1)
                x = 4;
            int a = x++;
            if (T == 1 && x == 4)
                x = 7;
            if (x > N)
            {
                if (!isOnLine(group1[0], group1[1], a))
                    group2.push_back(a);
                break;
            }
            int b = x++;
            if (!isOnLine(group1[0], a, b))
            {
                if (!isOnLine(group1[0], group1[1], a))
                    group2.push_back(a);
                else
                    group2.push_back(b);
            }
        }
        Answer(group1[0], group1[1], group2[0], group2[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: 100 / 100