제출 #206230

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
206230		Haunted_Cpp	Baloni (COCI15_baloni)	C++17	100 / 100	368 ms	4344 KiB

baloni

#include <iostream>
#include <vector>
#include <map>
#include <cassert> 
#include <set> 
#include <algorithm>

#define FOR(i, a, b) for(int i = a; i < (int) b; i++)
#define F0R(i, a) FOR (i, 0, a)
#define ROF(i, a, b) for(int i = a; i >= (int) b; i--)
#define R0F(i, a) ROF(i, a, 0)
#define GO(i, a) for (auto i : a)
 
#define eb emplace_back
#define sz(x) (int) x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define f first
#define s second
 
using namespace std;
 
typedef long long i64;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;
typedef vector<vi> vvi;
typedef vector<vpii> vvpii;
typedef vector<i64> vi64;
 
const int dr[] = {+1, -1, +0, +0, +1, -1, -1, +1};
const int dc[] = {+0, +0, +1, -1, +1, -1, +1, -1};

/*
const int dc[] = {+2, +2, -2, -2, +1, -1, +1, -1};
const int dr[] = {+1, -1, +1, -1, +2, +2, -2, -2};
*/
 
//const int m[] = {+31, +29, +31, +30, +31, +30, +31, +31, +30, +31, +30, +31};

multiset<int> can_remove;

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  int res = 0;
  int n;
  cin >> n;
  F0R (i, n) {
    int foo;
    cin >> foo;
    if (can_remove.find(foo) != can_remove.end()) {
      can_remove.erase(can_remove.lower_bound(foo));
    } else {
      ++res;
    }
    can_remove.insert(foo - 1);
  }
  cout << res << '\n';
  return 0;
}

• Subtask 1: 100 / 100