제출 #420639

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
420639	2021-06-08 13:04:06	QCFium	Rectangles (IOI19_rect)	C++14	27 / 100	5096 ms	691284 KiB

rect

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#include <bits/stdc++.h>
int ri() {
  int n;
  scanf("%d", &n);
  return n;
}
struct BIT {
  int n;
  std::vector<int> data;
  int all_sum = 0;
  BIT (int n) : n(n), data(n + 1) {}
  void add(int i, int val) {
    for (i++; i <= n; i += i & -i) data[i] += val;
    all_sum += val;
  }
  int sum_left(int r) {
    int res = 0;
    for (; r; r -= r & -r) res += data[r];
    return res;
  }
  int sum_right(int l) { return all_sum - sum_left(l); }
};
struct SegTree {
  int n;
  std::vector<int> data;
  SegTree (int n_) {
    for (n = 1; n < n_; n <<= 1);
    data.resize(n << 1);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

rect.cpp: In function 'int ri()':
rect.cpp:5:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 7 / 7
• Subtask 3: 12 / 12
• Subtask 4: 0 / 22
• Subtask 5: 0 / 10
• Subtask 6: 0 / 13
• Subtask 7: 0 / 28