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Submission #208671

# Submission time Handle Problem Language Result Execution time Memory
208671 2020-03-12T01:46:34 Z E869120 Sequence (BOI14_sequence) C++14
67 / 100
 1000 ms 2656 KB 
#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <ctime>
using namespace std;
#pragma warning (disable: 4996)

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

int shou[200009], amari[200009];

void init() {
	for (int i = 0; i < 200000; i++) {
		shou[i] = i / 1000;
		amari[i] = i % 1000;
	}
	for (int i = 0; i < 10000; 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];

string fixes(string V, bool flag) {
	if (V == "") {
		if (flag == true) V = "1";
		else V = "0";
	}
	else if (V[0] == '0') {
		if (V.size() == 1) V = "10";
		else swap(V[0], V[1]);
	}
	return V;
}

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, ret = 0;
	for (int i = 0; i < N; i++) {
		if (used3[amari[dig + i]][A[i]] == false) cnt[shou[dig + i]][A[i]] = 1;
	}
	maxt = (dig + N - 1) / 1000;

	vector<int> J[10];
	for (int i = 0; i < 10; i++) {
		for (int j = 0; j <= maxt; j++) { if (cnt[j][i] == 1) J[i].push_back(j); }
	}

	// 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 }; bool flag = false;
		for (int k = 0; k < 10; k++) {
			for (int j : J[k]) { if (used3[i + j][k] == false) { v[k] = 1; break; } }
		}
		for (int j : J[0]) { if (used[i + j][0] == false) { flag = true; break; } }
		string S = ""; for (int j = 0; j < 10; j++) { if (v[j] == 1) S += ('0' + j); }
		S = fixes(S, flag);
		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
	// どうやら存在しないらしい

	return m1;
}

int main() {
	srand((unsigned)time(NULL));
	scanf("%d", &N); init();
	for (int i = 0; i < N; i++) scanf("%d", &A[i]);

	// ステップ 1. 1000 以下を全探索
	for (int i = 1; i <= 100; 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;
}

Compilation message

sequence.cpp:7:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (disable: 4996)
 
sequence.cpp: In function 'long long int solve(int)':
sequence.cpp:71:16: warning: unused variable 'ret' [-Wunused-variable]
  int maxt = 0, ret = 0;
                ^~~
sequence.cpp: In function 'int main()':
sequence.cpp:104:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N); init();
  ~~~~~^~~~~~~~~~
sequence.cpp:105:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 0; i < N; i++) scanf("%d", &A[i]);
                              ~~~~~^~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2040 KB Output is correct
2 Correct 166 ms 2040 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 156 ms 2040 KB Output is correct
5 Correct 6 ms 2040 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 91 ms 2040 KB Output is correct
8 Correct 94 ms 2040 KB Output is correct
9 Correct 6 ms 2040 KB Output is correct
10 Correct 181 ms 2040 KB Output is correct
11 Correct 6 ms 2040 KB Output is correct
12 Correct 157 ms 2296 KB Output is correct
13 Correct 162 ms 2040 KB Output is correct
14 Correct 182 ms 2040 KB Output is correct
15 Correct 189 ms 2168 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2168 KB Output is correct
2 Correct 168 ms 2168 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 166 ms 2152 KB Output is correct
5 Correct 6 ms 2044 KB Output is correct
6 Correct 6 ms 2168 KB Output is correct
7 Correct 91 ms 2168 KB Output is correct
8 Correct 86 ms 2168 KB Output is correct
9 Correct 94 ms 2148 KB Output is correct
10 Correct 6 ms 2040 KB Output is correct
11 Correct 148 ms 2144 KB Output is correct
12 Correct 178 ms 2040 KB Output is correct
13 Correct 6 ms 2040 KB Output is correct
14 Correct 166 ms 2168 KB Output is correct
15 Correct 173 ms 2140 KB Output is correct
16 Correct 187 ms 2040 KB Output is correct
17 Correct 185 ms 2040 KB Output is correct
18 Correct 159 ms 2168 KB Output is correct
19 Correct 181 ms 2144 KB Output is correct
20 Correct 211 ms 2168 KB Output is correct
21 Correct 172 ms 2144 KB Output is correct
22 Correct 200 ms 2168 KB Output is correct
23 Correct 187 ms 2168 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2168 KB Output is correct
2 Correct 125 ms 2168 KB Output is correct
3 Correct 144 ms 2188 KB Output is correct
4 Correct 152 ms 2168 KB Output is correct
5 Correct 153 ms 2168 KB Output is correct
6 Correct 116 ms 2168 KB Output is correct
7 Correct 386 ms 2424 KB Output is correct
8 Correct 270 ms 2328 KB Output is correct
9 Correct 523 ms 2552 KB Output is correct
10 Correct 539 ms 2528 KB Output is correct

Subtask #4
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2040 KB Output is correct
2 Correct 183 ms 2144 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 159 ms 2140 KB Output is correct
5 Correct 588 ms 2316 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 6 ms 2040 KB Output is correct
8 Correct 91 ms 2200 KB Output is correct
9 Correct 86 ms 2040 KB Output is correct
10 Correct 96 ms 2168 KB Output is correct
11 Correct 534 ms 2552 KB Output is correct
12 Correct 509 ms 2552 KB Output is correct
13 Correct 6 ms 2040 KB Output is correct
14 Correct 141 ms 2040 KB Output is correct
15 Correct 188 ms 2040 KB Output is correct
16 Correct 6 ms 2168 KB Output is correct
17 Correct 160 ms 2040 KB Output is correct
18 Correct 172 ms 2040 KB Output is correct
19 Correct 189 ms 2148 KB Output is correct
20 Correct 183 ms 2144 KB Output is correct
21 Correct 169 ms 2168 KB Output is correct
22 Correct 166 ms 2144 KB Output is correct
23 Correct 185 ms 2144 KB Output is correct
24 Correct 172 ms 2040 KB Output is correct
25 Correct 182 ms 2168 KB Output is correct
26 Correct 187 ms 2040 KB Output is correct
27 Correct 123 ms 2168 KB Output is correct
28 Correct 125 ms 2188 KB Output is correct
29 Correct 165 ms 2168 KB Output is correct
30 Correct 155 ms 2184 KB Output is correct
31 Correct 114 ms 2168 KB Output is correct
32 Correct 384 ms 2412 KB Output is correct
33 Correct 267 ms 2296 KB Output is correct
34 Correct 529 ms 2656 KB Output is correct
35 Correct 530 ms 2540 KB Output is correct
36 Correct 820 ms 2424 KB Output is correct
37 Execution timed out 1024 ms 2552 KB Time limit exceeded
38 Halted 0 ms 0 KB -