Submission #317340

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
317340	2020-10-29 14:35:45	sebinkim	Square or Rectangle? (NOI19_squarerect)	C++14	Compilation error	0 ms	0 KiB

squarerect

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#include "squarerect.h"
#include <bits/stdc++.h>
using namespace std;
bool am_i_square(int N)
{
  auto ask = [&](int x, int y){
    if(x < 1 || x > N || y < 1 || y > N) return false;
    else return inside_shape(x, y);
  };
  int i, j, a, b, c, d;
  a = b = N; c = d = 1;
  for(i = 20; i < 100; i += 20){
    for(j = 20; j < 100; j += 20){
      if(ask(i, j)){
        a = min(a, i); b = min(b, j);
        c = max(c, i); d = max(d, j);
      }
    }
  }
  if(a == N){
    for(i = 20; i <= 100; i += 20){
      if(ask(i, N)){ a = i; break; }
      if(ask(N, i)){ b = i; break; }
    }
    for(; a != N && ask(a + 1, b); a ++);
    for(; b != N && ask(a, b + 1); b ++);
 
 
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Compilation message (stderr)

/tmp/ccuVYTz2.o: In function `main':
grader.cpp:(.text.startup+0x57): undefined reference to `am_i_square(int, int)'
collect2: error: ld returned 1 exit status