Submission #1126415

#	Time	Username	Problem	Language	Result	Execution time	Memory
1126415		Agageldi	Sequence (BOI14_sequence)	C++20	0 / 100	1096 ms	1232 KiB

sequence

/*
ID: agageld1
LANG: C++17
TASK:
*/
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define N 4000005
#define ff first
#define ss second
#define pb push_back
#define sz(s) (int)s.size()
#define rep(c, a, b) for(c = a; c <= b; c++)

//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

ll n, t, T, a[N], p, r = 1;
string s, g, h;

int main () {
	//freopen("txt.in","r",stdin);
	//freopen("txt.out","w",stdout);
	ios::sync_with_stdio(0);cin.tie(0);
	cin >> n;
	bool w = 0;
	for(int i = 1; i <= n; i++) {
		cin >> a[i];
		if(a[1] != a[i]) w = 1;
	}
	if(!w) p = a[1];
	for(int i = 1;; i++) {
		if(!w) {
			i = p;
			p *= 10;
		}
		bool tr = 0;
		for(int j = i; j <= i + n - 1; j++) {
			t = j;
			while(t != 0 && (t % 10) != a[j - i + 1]) {
				t /= 10;
			}
			if(t == 0 || t % 10 != a[j - i + 1]) {
				tr = 1;
				break;
			}	
		}
		if(!tr) {
			cout << i << '\n';
			return 0;
		}
	}
}

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