Submission #172840

#	Time	Username	Problem	Language	Result	Execution time	Memory
172840		LinusTorvaldsFan	Money (IZhO17_money)	C++14	0 / 100	2 ms	376 KiB

money

#include <bits/stdc++.h>

using namespace std;


int main() {
	int n;
	cin>>n;
	vector<int>a(n);
	for(int i=0;i<n;i++)cin>>a[i];
	vector<int>nei(n+1);
	vector<bool>al(n,true);
	for(int i=0;i<n;i++){
		nei[i+1]=i+2;
	}
	int ans=0;
	while(true) {
		bool br=true;
		int ind=-1;
		int am=0;
		for(int i=0;i<n;i++){
			if(!al[i])continue;
			br=false;
			int j=i+1;
			int cur=1;
			while(j<n&&a[j]==nei[a[j-1]]){
				j++;
				cur++;
			}
			if(cur>am){
				am=cur;
				ind=i;
			}
		}
		if(br)break;
		ans++;
		for(int i=ind;i<ind+am;i++){
			al[i]=false;
		}
		nei[a[ind]-1]=a[ind]+am;
	}
	cout<<ans;
	return 0;
}

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