Submission #106115

#	Time	Username	Problem	Language	Result	Execution time	Memory
106115		sofhiasouza	Sequence (BOI14_sequence)	C++14	0 / 100	6 ms	384 KiB

sequence

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int k, a;
	string s;
	cin >> k;
	for(int i = 0 ; i < k ; i++) cin >> a;
	k--;
	stringstream ans;
	ans << k;
	ans >> s;
	if(k == 0 and a != 0) cout << a << endl;
	else if(a == 0)
	{
		string ss;
		stringstream aux;
		aux << k-1;
		aux >> ss;
		if(k == 0) cout << 10 << endl;
		else if(ss.size() != s.size()) cout << pow(10, s.size()) << endl;
		else cout << pow(10, s.size()+1) << endl;
	}
	else if(a == 9)
	{
		int t = pow(10, s.size()-2);
		if(t == 1) t = 0;
		if(s.size() == 1) cout << 89 << endl;
		else if(t+1 + pow(10, s.size()-1) > k) cout << pow(10, s.size()-1)*9 - t-1 << endl; 
		else cout << pow(10, s.size())*9 - pow(10, s.size()-1)-1 << endl;
	}
	else cout << pow(10, s.size())*a << endl;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 33
• Subtask 3: 0 / 25
• Subtask 4: 0 / 33