제출 #302164

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
302164	2020-09-18 13:48:05	edenooo	역사적 조사 (JOI14_historical)	C++17	15 / 100	4094 ms	4968 KiB

historic

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#include<bits/stdc++.h>
using namespace std;
 
#define INF 1234567890
#define ll long long
inline int64_t gilbertOrder(int x, int y, int pow, int rotate) {
  if (pow == 0) {
    return 0;
  }
  int hpow = 1 << (pow-1);
  int seg = (x < hpow) ? (
    (y < hpow) ? 0 : 3
  ) : (
    (y < hpow) ? 1 : 2
  );
  seg = (seg + rotate) & 3;
  const int rotateDelta[4] = {3, 0, 0, 1};
  int nx = x & (x ^ hpow), ny = y & (y ^ hpow);
  int nrot = (rotate + rotateDelta[seg]) & 3;
  int64_t subSquareSize = int64_t(1) << (2*pow - 2);
  int64_t ans = seg * subSquareSize;
  int64_t add = gilbertOrder(nx, ny, pow-1, nrot);
  ans += (seg == 1 || seg == 2) ? add : (subSquareSize - add - 1);
  return ans;
}
 
struct Node {
  int l, r, i;
  int64_t ord;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

historic.cpp: In function 'int main()':
historic.cpp:79:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Node>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |  for(int i=0; i<q.size(); i++)
      |               ~^~~~~~~~~
historic.cpp:56:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   56 |  scanf("%d %d", &N, &Q);
      |  ~~~~~^~~~~~~~~~~~~~~~~
historic.cpp:59:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   59 |   scanf("%d", &A[i]);
      |   ~~~~~^~~~~~~~~~~~~
historic.cpp:72:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   72 |   scanf("%d %d", &l, &r);
      |   ~~~~~^~~~~~~~~~~~~~~~~

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• Subtask 2: 10 / 10
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• Subtask 4: 0 / 60