Submission #677856

#	Time	Username	Problem	Language	Result	Execution time	Memory
677856		Tigryonochekk	Money (IZhO17_money)	C++17	45 / 100	1593 ms	2164 KiB

money

#include <iostream>
#include <algorithm>
#include <cmath>
#include <map>
#include <set>
#include <string>
#include <vector>
using namespace std;
#define ll long long
#define ld long double
#define pii pair<int, int>

const int N = 1e6 + 2;

int n;
int a[N];

vector<int> vec;

bool find(int cl, int cr) {
    for (int i = 0; i < vec.size(); i++) {

    }
    return 0;
}

bool check(int l, int r, int cl, int cr) {
    int x = upper_bound(a + l, a + r, a[cl]) - a - l;
    int y = lower_bound(a + l, a + r, a[cr]) - a - l;
    if (x < (r - l) && x < y) 
        return false;
    else
        return true;
}

int main() {
    cin >> n;
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    int ans = n;
    int cl = 1;
    vec.push_back(0);
    for (int i = 0; i < n - 1; i++) {
        if (a[i] > a[i + 1]) {
            ans -= i - cl;
            cl = i + 1;
            //sort(a + vec.back(), a + cl);
            sort(a, a + cl);
            continue;
        }
        if(!check(0, cl, cl, i + 1)) {
            ans -= i - cl;
            cl = i + 1;
            sort(a, a + cl);
        }
    }
    ans -= (n - cl);
    cout << ans << endl;
    return 0;
}
/*
6
3 6 4 5 1 2

6
1 2 2 3 4 5

4
4 1 4 5
*/

Compilation message (stderr)

money.cpp: In function 'bool find(int, int)':
money.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for (int i = 0; i < vec.size(); i++) {
      |                     ~~^~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 20 / 20
• Subtask 4: 0 / 55