Submission #262191

#	Time	Username	Problem	Language	Result	Execution time	Memory
262191		MiricaMatei	Highway design (CEOI12_highway)	C++14	100 / 100	5 ms	1152 KiB

highway

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

using namespace std;

const int MAXN = 100005;

int v[MAXN];

/*int getN() {

}

int isOnLine(int x, int y, int z) {

}

void Answer(int x, int y, int z, int l) {

}*/

int main() {
  srand(time(0));

  int n = GetN();
  for (int i = 1; i <= n; ++i)
    v[i] = i;
  random_shuffle(v + 1, v + n + 1);

  int x = 0, y = 0, z = 0;
  for (int i = 1; i <= 5 && x == 0; ++i)
    for (int j = i + 1; j <= 5 && x == 0; ++j)
      for (int k = j + 1; k <= 5 && x == 0; ++k)
        if (isOnLine(i, j, k))
          x = i, y = j, z = k;

  int m = 0;
  for (int i = 1; i <= n; ++i)
    if (i != x && i != y && i != z)
      v[++m] = i;
  random_shuffle(v + 1, v + m + 1);
  int p = 0, l = 0;
  for (int i = 1; i <= m && l == 0; i += 2) {
    if (!isOnLine(x, v[i], v[i + 1])) {
      if (!isOnLine(x, y, v[i])) {
        if (p == 0) {
          p = v[i];
          if (!isOnLine(x, y, v[i + 1]))
            l = v[i + 1];
        } else {
          l = v[i];
        }
      } else {
        if (p == 0)
          p = v[i + 1];
        else
          l = v[i + 1];
      }
    }
  }

  if (l == 0)
    l = v[m];

  Answer(x, y, p, l);

  return 0;
}

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

• Subtask 1: 100 / 100