Submission #395012

#	Time	Username	Problem	Language	Result	Execution time	Memory
395012		soroush	Sequence (BOI14_sequence)	C++17	0 / 100	602 ms	484 KiB

sequence

//曇り空 のぞいた予感
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int , int> pii;

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

const int maxn = 1e5 + 10;
const ll mod = 1e9+7;

#define pb push_back
#define endl '\n'
#define dokme(x) cout << x , exit(0)
#define ms(x , y) memset(x , y , sizeof x)
ll pw(ll a, ll b, ll md = mod){ll res = 1;while(b){if(b&1){res=(a*res)%md;}a=(a*a)%md;b>>=1;}return(res);}

int n , a[maxn];

bool cnt(int x , int d){
	while(x){
		if(x%10 == d)return 1;
		x /= 10;
	}
	return 0;
}

ll f(int x){
	ll ans = 1;
	if(x == 0)return 10;
	while(x){
		ans *= 10;
		x /= 10;
	}
	return ans;
}

ll solve(int x){
	int need[10];
	ms(need , 0);
	int cur = x;
	for(int i = 0 ; i < n ; i ++){
		if(!cnt(cur , a[i])){
			need[a[i]] = 1;
		}
		cur++;
		if(cur >= 10000)return 1e18;
	}
	ll ans = 0;
	if(need[0]){
		for(int i = 1 ; i < 10 ; i ++)if(need[i]){
			if(need[0])ans = i*10 , need[0] = 0;
			ans = ans * 10 + i;
		}
		if(ans == 0)ans = 10;
		ans = ans * f(x) + x;
	}
	else{
		for(int i = 1 ; i < 10 ; i ++)if(need[i])ans = ans * 10 + i;
		ans = ans * f(x) + x;
	} 
	if(ans == 9)dokme(x);
	return ans;
}

int32_t main(){
	ios::sync_with_stdio(false),cin.tie(0),cout.tie(0);
	cin >> n;
	for(int i = 0 ; i < n ; i ++)
		cin >> a[i];
	ll ans = 1e18;
	for(int i = 0 ; i < 10000 ; i ++)
		ans = min(ans , solve(i));
	cout << ans;
	return(0);
}

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