제출 #418496

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
418496	2021-06-05 12:09:17	johutha	Rectangles (IOI19_rect)	C++17	0 / 100	567 ms	22812 KiB

rect

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#include "rect.h"
#include <bits/stdc++.h>
using namespace std;
 
vector<int> tree;
 
 
void update(int v, int rl, int rr, int pos, int x) {
  if (rl == rr) {
    tree[v] = x;
    return;
  }
 
  int rm = (rl + rr)/2;
 
  if (pos <= rm) update(v*2, rl, rm, pos, x);
  else update(v*2+1, rm+1, rr, pos, x);
 
  tree[v] = max(tree[v*2], tree[v*2+1]);
}
 
 
int querry(int v, int rl, int rr, int ql, int qr) {
  if (ql > qr) return 0;
  if (rl == ql && rr == qr) {
    return tree[v];
  }
  int rm = (rl + rr) / 2;
 
  return max(querry(v*2, rl, rm, ql, min(qr, rm)), querry(v*2+1, rm+1, rr, max(rm+1, ql), qr));
 
 
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컴파일 시 표준 에러 (stderr) 메시지

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:43:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |  for (int i = 0; i<a[1].size(); i++) {
      |                  ~^~~~~~~~~~~~
rect.cpp:48:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |  for (int i = 1; i<a[1].size()-1; i++) {
      |                  ~^~~~~~~~~~~~~~
rect.cpp:49:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |   for (int j = i; j<a[1].size()-1; j++) {
      |                   ~^~~~~~~~~~~~~~

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