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Submission #208676

# Submission time Handle Problem Language Result Execution time Memory
208676 2020-03-12T01:47:42 Z E869120 Sequence (BOI14_sequence) C++14
67 / 100
 1000 ms 2552 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 2168 KB Output is correct
2 Correct 176 ms 2168 KB Output is correct
3 Correct 6 ms 2168 KB Output is correct
4 Correct 166 ms 2168 KB Output is correct
5 Correct 6 ms 2168 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 92 ms 2040 KB Output is correct
8 Correct 101 ms 2168 KB Output is correct
9 Correct 8 ms 2044 KB Output is correct
10 Correct 180 ms 2040 KB Output is correct
11 Correct 6 ms 2168 KB Output is correct
12 Correct 172 ms 2040 KB Output is correct
13 Correct 171 ms 2040 KB Output is correct
14 Correct 185 ms 2168 KB Output is correct
15 Correct 184 ms 2168 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2088 KB Output is correct
2 Correct 191 ms 2168 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 162 ms 2040 KB Output is correct
5 Correct 6 ms 2168 KB Output is correct
6 Correct 6 ms 2168 KB Output is correct
7 Correct 97 ms 2220 KB Output is correct
8 Correct 104 ms 2168 KB Output is correct
9 Correct 95 ms 2040 KB Output is correct
10 Correct 6 ms 2168 KB Output is correct
11 Correct 145 ms 2040 KB Output is correct
12 Correct 187 ms 2296 KB Output is correct
13 Correct 6 ms 2168 KB Output is correct
14 Correct 161 ms 2040 KB Output is correct
15 Correct 165 ms 2040 KB Output is correct
16 Correct 186 ms 2040 KB Output is correct
17 Correct 194 ms 2044 KB Output is correct
18 Correct 161 ms 2040 KB Output is correct
19 Correct 164 ms 2140 KB Output is correct
20 Correct 190 ms 2040 KB Output is correct
21 Correct 164 ms 2040 KB Output is correct
22 Correct 183 ms 2040 KB Output is correct
23 Correct 200 ms 2168 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2040 KB Output is correct
2 Correct 122 ms 2184 KB Output is correct
3 Correct 124 ms 2172 KB Output is correct
4 Correct 151 ms 2168 KB Output is correct
5 Correct 152 ms 2300 KB Output is correct
6 Correct 112 ms 2168 KB Output is correct
7 Correct 401 ms 2296 KB Output is correct
8 Correct 277 ms 2400 KB Output is correct
9 Correct 522 ms 2424 KB Output is correct
10 Correct 531 ms 2552 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 167 ms 2168 KB Output is correct
3 Correct 6 ms 2168 KB Output is correct
4 Correct 159 ms 2168 KB Output is correct
5 Correct 579 ms 2296 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 6 ms 2040 KB Output is correct
8 Correct 90 ms 2148 KB Output is correct
9 Correct 85 ms 2040 KB Output is correct
10 Correct 99 ms 2040 KB Output is correct
11 Correct 544 ms 2552 KB Output is correct
12 Correct 531 ms 2424 KB Output is correct
13 Correct 6 ms 2040 KB Output is correct
14 Correct 141 ms 2040 KB Output is correct
15 Correct 179 ms 2144 KB Output is correct
16 Correct 6 ms 2168 KB Output is correct
17 Correct 166 ms 2168 KB Output is correct
18 Correct 159 ms 2168 KB Output is correct
19 Correct 187 ms 2148 KB Output is correct
20 Correct 191 ms 2168 KB Output is correct
21 Correct 182 ms 2140 KB Output is correct
22 Correct 178 ms 2040 KB Output is correct
23 Correct 187 ms 2088 KB Output is correct
24 Correct 179 ms 2168 KB Output is correct
25 Correct 202 ms 2272 KB Output is correct
26 Correct 191 ms 2168 KB Output is correct
27 Correct 123 ms 2168 KB Output is correct
28 Correct 129 ms 2300 KB Output is correct
29 Correct 155 ms 2168 KB Output is correct
30 Correct 151 ms 2168 KB Output is correct
31 Correct 119 ms 2092 KB Output is correct
32 Correct 381 ms 2412 KB Output is correct
33 Correct 267 ms 2224 KB Output is correct
34 Correct 519 ms 2536 KB Output is correct
35 Correct 505 ms 2424 KB Output is correct
36 Correct 814 ms 2424 KB Output is correct
37 Execution timed out 1030 ms 2532 KB Time limit exceeded
38 Halted 0 ms 0 KB -