oj.uz

Submission #208677

# Submission time Handle Problem Language Result Execution time Memory
208677 2020-03-12T01:47:59 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 178 ms 2140 KB Output is correct
3 Correct 6 ms 2168 KB Output is correct
4 Correct 167 ms 2168 KB Output is correct
5 Correct 6 ms 2168 KB Output is correct
6 Correct 6 ms 2168 KB Output is correct
7 Correct 88 ms 2168 KB Output is correct
8 Correct 102 ms 2168 KB Output is correct
9 Correct 6 ms 2168 KB Output is correct
10 Correct 191 ms 2172 KB Output is correct
11 Correct 6 ms 2040 KB Output is correct
12 Correct 160 ms 2168 KB Output is correct
13 Correct 169 ms 2144 KB Output is correct
14 Correct 193 ms 2172 KB Output is correct
15 Correct 187 ms 2168 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2040 KB Output is correct
2 Correct 178 ms 2144 KB Output is correct
3 Correct 6 ms 2168 KB Output is correct
4 Correct 174 ms 2140 KB Output is correct
5 Correct 6 ms 2168 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 90 ms 2168 KB Output is correct
8 Correct 91 ms 2168 KB Output is correct
9 Correct 100 ms 2168 KB Output is correct
10 Correct 6 ms 2040 KB Output is correct
11 Correct 145 ms 2040 KB Output is correct
12 Correct 178 ms 2044 KB Output is correct
13 Correct 6 ms 2168 KB Output is correct
14 Correct 169 ms 2040 KB Output is correct
15 Correct 168 ms 2168 KB Output is correct
16 Correct 183 ms 2168 KB Output is correct
17 Correct 189 ms 2168 KB Output is correct
18 Correct 168 ms 2040 KB Output is correct
19 Correct 169 ms 2040 KB Output is correct
20 Correct 198 ms 2040 KB Output is correct
21 Correct 172 ms 2296 KB Output is correct
22 Correct 182 ms 2040 KB Output is correct
23 Correct 198 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 131 ms 2296 KB Output is correct
4 Correct 155 ms 2172 KB Output is correct
5 Correct 152 ms 2168 KB Output is correct
6 Correct 110 ms 2168 KB Output is correct
7 Correct 391 ms 2424 KB Output is correct
8 Correct 271 ms 2296 KB Output is correct
9 Correct 525 ms 2552 KB Output is correct
10 Correct 535 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 169 ms 2040 KB Output is correct
3 Correct 6 ms 2044 KB Output is correct
4 Correct 162 ms 2144 KB Output is correct
5 Correct 584 ms 2424 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 6 ms 2044 KB Output is correct
8 Correct 95 ms 2168 KB Output is correct
9 Correct 85 ms 2172 KB Output is correct
10 Correct 93 ms 2040 KB Output is correct
11 Correct 543 ms 2540 KB Output is correct
12 Correct 525 ms 2424 KB Output is correct
13 Correct 6 ms 2040 KB Output is correct
14 Correct 150 ms 2040 KB Output is correct
15 Correct 186 ms 2296 KB Output is correct
16 Correct 6 ms 2044 KB Output is correct
17 Correct 159 ms 2040 KB Output is correct
18 Correct 174 ms 2040 KB Output is correct
19 Correct 184 ms 2168 KB Output is correct
20 Correct 194 ms 2040 KB Output is correct
21 Correct 160 ms 2040 KB Output is correct
22 Correct 169 ms 2044 KB Output is correct
23 Correct 197 ms 2040 KB Output is correct
24 Correct 164 ms 2040 KB Output is correct
25 Correct 186 ms 2168 KB Output is correct
26 Correct 182 ms 2168 KB Output is correct
27 Correct 127 ms 2168 KB Output is correct
28 Correct 126 ms 2168 KB Output is correct
29 Correct 158 ms 2296 KB Output is correct
30 Correct 178 ms 2168 KB Output is correct
31 Correct 116 ms 2168 KB Output is correct
32 Correct 397 ms 2424 KB Output is correct
33 Correct 270 ms 2296 KB Output is correct
34 Correct 514 ms 2544 KB Output is correct
35 Correct 510 ms 2532 KB Output is correct
36 Correct 835 ms 2428 KB Output is correct
37 Execution timed out 1044 ms 2524 KB Time limit exceeded
38 Halted 0 ms 0 KB -