제출 #527813

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
527813	2022-02-18 11:58:38	colazcy	Drzava (COCI15_drzava)	C++11	0 / 160	3 ms	648 KiB

drzava

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#include <iostream>
#include <cmath>
#include <cassert>
#include <set>
#include <algorithm>
#define let const auto
#define rep(name,beg,end) for(auto lim_##name = end,name = beg;name <= lim_##name;name++)
#define per(name,beg,end) for(auto lim_##name = end,name = beg;name >= lim_##name;name--)
#define repn(lim) for(auto REPN_LIM = lim,REPN = 1;REPN <= REPN_LIM;REPN++)
#define debug(...) fprintf(stderr,__VA_ARGS__)
#define trace() debug("Line : %d, Function : %s\n",__LINE__,__FUNCTION__)
using ll = long long;
constexpr int maxn = 5e4 + 10;
constexpr ll sq(const ll x){return x * x;}
int n,k,v[maxn],now[maxn];
namespace dsu{
  int f[maxn];
  void init(){rep(i,1,n)f[i] = i;}
  int find(const int x){return x == f[x] ? x : f[x] = find(f[x]);}
  void merge(const int x,const int y){f[find(x)] = find(y);}
}
struct Point{
  int x,y,id;
}val[maxn];
bool chk(const ll lim){
  dsu::init();
  let cmp = [](const Point &a,const Point &b){
 
 
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컴파일 시 표준 에러 (stderr) 메시지

drzava.cpp: In function 'int main()':
drzava.cpp:65:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |  std::freopen("fufu.in","r",stdin);
      |  ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~

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