Submission #421932

#	Time	Username	Problem	Language	Result	Execution time	Memory
421932		MetalPower	Sequence (BOI14_sequence)	C++14	34 / 100	8 ms	800 KiB

sequence

#include <bits/stdc++.h>
using namespace std;

#define ll long long

const int MX = 1e5 + 10, num = 1e4;
int K, arr[MX];

inline int check(int a, const int& b){
	while(a){
		if(a % 10 == b) return true;
		a /= 10;
	}
	return false;
}

inline void chmin(long long& a, long long b){
	if(b < a) a = b;
}

inline void solve_sub3(){
	ll size = K - 1, calc = 1, l = 0;

	if(arr[0] == 0){
		while(size >= calc){
			size -= calc;
			calc = (calc << 3) + (calc << 1);
			l++;
		}
		cout << "10";
		for(int i = 1; i <= l; i++) cout << "0";
	}else if(arr[0] == 9){
		while(size >= calc){
			size -= calc;
			calc = (calc << 3) + (calc << 1);
			l++;
		}
		for(int i = 1; i <= l; i++) cout << "8";
		cout << "9";
	}else{
		while(size){
			size /= 10; l++;
		}
		cout << arr[0];
		for(int i = 1; i <= l; i++) cout << "0";
	}

	cout << '\n';
}

bool vis[10];

int main(){
	ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);

	cin >> K;

	bool eq = true;

	for(int i = 0; i < K; i++){
		cin >> arr[i]; if(arr[i] != arr[0]) eq = false;
	}

	if(eq){
		solve_sub3();
	}else{

		long long mn = 1e18;

		for(int N = 1; N < num; N++){
			bool pos = true;
			for(int i = 0; i < K; i++){
				if(!check(N + i, arr[i])){
					pos = false; break;
				}
			}
			if(pos) chmin(mn, (long long) N);
		}

		cout << mn << '\n';
	}
}

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