Submission #1305769

#	Time	Username	Problem	Language	Result	Execution time	Memory
1305769		michael12	Money (IZhO17_money)	C++20	0 / 100	0 ms	568 KiB

money

#include<bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
const int maxn = 5e5;
signed main(){
    int n;
    cin >> n;
    vector<int> a(n);
    vector<int> b(n, 1);
    for(int i = 0; i < n; i++){
        cin >> a[i];
    }
    set<int> st;
    for(int i = 0; i < n - 1; i++){
        if(a[i] > a[i + 1] || a[i] + 1 < a[i + 1]){
            st.insert(i + 1);
        }
    }
    cout << st.size();
   


}

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