oj.uz

Submission #208646

# Submission time Handle Problem Language Result Execution time Memory
208646 2020-03-12T01:13:19 Z E869120 Sequence (BOI14_sequence) C++14
9 / 100
 1000 ms 98552 KB 
#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

int N, A[1 << 18];
bool used[10000009][10];
bool used3[1009][10];
bool used4[10009][10];

void init() {
	for (int i = 0; i < 10000000; i++) {
		int cx = i;
		while (cx >= 1) {
			used[i][cx % 10] = true;
			cx /= 10;
		}
	}
	for (int i = 0; i < 1000; i++) {
		int cx = i;
		for (int j = 0; j < 3; j++) {
			used3[i][cx % 10] = true;
			cx /= 10;
		}
	}
	for (int i = 0; i < 10000; i++) {
		int cx = i;
		for (int j = 0; j < 4; j++) {
			used4[i][cx % 10] = true;
			cx /= 10;
		}
	}
}

bool check(int pos) {
	for (int i = 0; i < N; i++) {
		if (used[pos][A[i]] == false) return false;
		pos++;
	}
	return true;
}

int cnt[109][10];

long long solve(int dig) {
	for (int i = 0; i < 101; i++) {
		for (int j = 0; j < 10; j++) cnt[i][j] = 0;
	}

	int maxt = 0;
	for (int i = 0; i < N; i++) {
		int V1 = (dig + i) % 1000;
		int V2 = (dig + i) / 1000;
		maxt = max(maxt, V2);
		if (used[V1][A[i]] == true) continue;
		cnt[maxt][A[i]] = 1;
	}

	// ケース 1: 下 3 桁が XYZ の場合
	long long m1 = (1LL << 60);
	for (int i = 0; i < 900; i++) {
		int v[10] = { 0,0,0,0,0,0,0,0,0,0 };
		for (int j = 0; j <= maxt; j++) {
			for (int k = 0; k < 10; k++) {
				if (cnt[j][k] == 1 && used3[i + j][k] == false) v[k] = 1;
			}
		}
		string S = "";
		for (int j = 0; j < 10; j++) { if (v[j] == 1) S += ('0' + j); }
		if (S[0] == '0') {
			if (S.size() == 1) S = "10";
			else swap(S[0], S[1]);
		}
		if (S == "") S = "0";
		long long eval = 1000000LL * stoll(S) + 1000LL * i + dig;
		m1 = min(m1, eval);
	}

	// ケース 2: 下 4 桁が X9YZ の場合
	long long m2 = (1LL << 60);
	for (int i = 0; i < 9000; i++) {
		if ((i % 1000) <= 899) continue;
		int v[10] = { 0,0,0,0,0,0,0,0,0,0 };
		for (int j = 0; j <= maxt; j++) {
			for (int k = 0; k < 10; k++) {
				if (cnt[j][k] == 1 && used4[i + j][k] == false) v[k] = 1;
			}
		}
		string S = "";
		for (int j = 0; j < 10; j++) { if (v[j] == 1) S += ('0' + j); }
		if (S[0] == '0') {
			if (S.size() == 1) S = "10";
			else swap(S[0], S[1]);
		}
		if (S == "") S = "0";
		long long eval = 10000000LL * stoll(S) + 1000LL * i + dig;
		m2 = min(m2, eval);
	}

	return min(m1, m2);
}

int main() {
	cin >> N; init();
	for (int i = 0; i < N; i++) cin >> A[i];

	// ステップ 1. 1000 以下を全探索
	for (int i = 1; i <= 1000; i++) {
		if (check(i) == true) {
			cout << i << endl;
			return 0;
		}
	}

	// ステップ 2. そうでない場合
	long long minx = (1LL << 60);
	for (int i = 0; i <= 999; i++) {
		minx = min(minx, solve(i));
	}
	cout << minx << endl;
	return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 170 ms 98472 KB Output is correct
2 Correct 161 ms 98296 KB Output is correct
3 Correct 158 ms 98296 KB Output is correct
4 Correct 165 ms 98296 KB Output is correct
5 Correct 164 ms 98296 KB Output is correct
6 Correct 162 ms 98296 KB Output is correct
7 Correct 163 ms 98300 KB Output is correct
8 Correct 164 ms 98416 KB Output is correct
9 Correct 169 ms 98296 KB Output is correct
10 Correct 168 ms 98296 KB Output is correct
11 Correct 165 ms 98296 KB Output is correct
12 Correct 168 ms 98364 KB Output is correct
13 Correct 158 ms 98296 KB Output is correct
14 Correct 158 ms 98296 KB Output is correct
15 Correct 159 ms 98308 KB Output is correct

Subtask #2
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 155 ms 98296 KB Output is correct
2 Correct 160 ms 98296 KB Output is correct
3 Correct 166 ms 98424 KB Output is correct
4 Correct 164 ms 98296 KB Output is correct
5 Correct 162 ms 98296 KB Output is correct
6 Correct 159 ms 98296 KB Output is correct
7 Correct 312 ms 98328 KB Output is correct
8 Correct 161 ms 98296 KB Output is correct
9 Correct 157 ms 98296 KB Output is correct
10 Correct 163 ms 98352 KB Output is correct
11 Correct 408 ms 98300 KB Output is correct
12 Correct 161 ms 98296 KB Output is correct
13 Correct 161 ms 98296 KB Output is correct
14 Correct 164 ms 98296 KB Output is correct
15 Correct 159 ms 98296 KB Output is correct
16 Correct 166 ms 98424 KB Output is correct
17 Correct 158 ms 98296 KB Output is correct
18 Correct 410 ms 98296 KB Output is correct
19 Incorrect 436 ms 98296 KB Output isn't correct
20 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 156 ms 98168 KB Output is correct
2 Correct 580 ms 98552 KB Output is correct
3 Correct 580 ms 98424 KB Output is correct
4 Incorrect 642 ms 98368 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 158 ms 98296 KB Output is correct
2 Correct 163 ms 98292 KB Output is correct
3 Correct 158 ms 98296 KB Output is correct
4 Correct 164 ms 98296 KB Output is correct
5 Execution timed out 1058 ms 98424 KB Time limit exceeded
6 Halted 0 ms 0 KB -