제출 #252911

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
252911	2020-07-26 12:38:09	user202729	원 고르기 (APIO18_circle_selection)	C++17	100 / 100	2366 ms	111768 KiB

circle_selection

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// scanf/printf.
#ifndef LOCAL
#define NDEBUG 1
#endif
#include<bits/stdc++.h>
#pragma GCC optimize("O3")
auto const callRange=[](auto& object, int first, int last, auto function){
  auto iterator=object.lower_bound(first);
  while(iterator!=object.end() and iterator->first<last){
    function(iterator->second);
    ++iterator;
  }
};
int main(){
  using Index=int; // for circles
  struct Circle{
    int x, y, r;
    bool intersect(Circle other) const{
      assert(r>0); assert(other.r>0);
      return int64_t(x-other.x)*(x-other.x)+int64_t(y-other.y)*(y-other.y)<=
        int64_t(r+other.r)*(r+other.r);
    }
  };
  int number; std::scanf("%d",&number);
  std::vector<Circle> circles(number);
  for(auto& [x, y, r]: circles){
    std::scanf("%d%d%d",&x,&y,&r);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

circle_selection.cpp: In function 'int main()':
circle_selection.cpp:70:24: warning: unused variable 'r' [-Wunused-variable]
     auto const [x, y, r]=circles[index];
                        ^
circle_selection.cpp:114:19: warning: unused variable 'r_' [-Wunused-variable]
    auto [index, r_]=q.top();
                   ^
circle_selection.cpp:115:54: warning: unused variable 'x' [-Wunused-variable]
    auto const cur=circles[index]; auto const [x, y, r]=cur;
                                                      ^
circle_selection.cpp:115:54: warning: unused variable 'y' [-Wunused-variable]
circle_selection.cpp:158:22: warning: unused variable 'x' [-Wunused-variable]
   auto const [x, y, r]=circles[index];
                      ^
circle_selection.cpp:158:22: warning: unused variable 'y' [-Wunused-variable]
circle_selection.cpp:158:22: warning: unused variable 'r' [-Wunused-variable]
circle_selection.cpp:27:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int number; std::scanf("%d",&number);
              ~~~~~~~~~~^~~~~~~~~~~~~~
circle_selection.cpp:30:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   std::scanf("%d%d%d",&x,&y,&r);
   ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~

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• Subtask 2: 12 / 12
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• Subtask 6: 13 / 13