oj.uz

Submission #208673

# Submission time Handle Problem Language Result Execution time Memory
208673 2020-03-12T01:46:49 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 167 ms 2168 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 159 ms 2044 KB Output is correct
5 Correct 6 ms 2040 KB Output is correct
6 Correct 7 ms 2040 KB Output is correct
7 Correct 89 ms 2172 KB Output is correct
8 Correct 108 ms 2172 KB Output is correct
9 Correct 6 ms 2040 KB Output is correct
10 Correct 177 ms 2168 KB Output is correct
11 Correct 6 ms 2168 KB Output is correct
12 Correct 165 ms 2168 KB Output is correct
13 Correct 161 ms 2168 KB Output is correct
14 Correct 184 ms 2168 KB Output is correct
15 Correct 186 ms 2040 KB Output is correct

Subtask #2
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2168 KB Output is correct
2 Correct 173 ms 2168 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 164 ms 2040 KB Output is correct
5 Correct 6 ms 2168 KB Output is correct
6 Correct 6 ms 2116 KB Output is correct
7 Correct 94 ms 2168 KB Output is correct
8 Correct 92 ms 2168 KB Output is correct
9 Correct 99 ms 2040 KB Output is correct
10 Correct 6 ms 2148 KB Output is correct
11 Correct 149 ms 2168 KB Output is correct
12 Correct 179 ms 2040 KB Output is correct
13 Correct 6 ms 2172 KB Output is correct
14 Correct 166 ms 2040 KB Output is correct
15 Correct 170 ms 2040 KB Output is correct
16 Correct 186 ms 2040 KB Output is correct
17 Correct 191 ms 2168 KB Output is correct
18 Correct 160 ms 2168 KB Output is correct
19 Correct 169 ms 2168 KB Output is correct
20 Correct 178 ms 2040 KB Output is correct
21 Correct 171 ms 2148 KB Output is correct
22 Correct 181 ms 2040 KB Output is correct
23 Correct 184 ms 2040 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 130 ms 2216 KB Output is correct
3 Correct 123 ms 2168 KB Output is correct
4 Correct 152 ms 2168 KB Output is correct
5 Correct 148 ms 2168 KB Output is correct
6 Correct 122 ms 2172 KB Output is correct
7 Correct 389 ms 2424 KB Output is correct
8 Correct 273 ms 2300 KB Output is correct
9 Correct 538 ms 2424 KB Output is correct
10 Correct 534 ms 2532 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 170 ms 2144 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 154 ms 2168 KB Output is correct
5 Correct 568 ms 2296 KB Output is correct
6 Correct 6 ms 2172 KB Output is correct
7 Correct 6 ms 2040 KB Output is correct
8 Correct 94 ms 2300 KB Output is correct
9 Correct 88 ms 2220 KB Output is correct
10 Correct 94 ms 2040 KB Output is correct
11 Correct 541 ms 2552 KB Output is correct
12 Correct 524 ms 2552 KB Output is correct
13 Correct 6 ms 2040 KB Output is correct
14 Correct 145 ms 2040 KB Output is correct
15 Correct 178 ms 2168 KB Output is correct
16 Correct 6 ms 2040 KB Output is correct
17 Correct 154 ms 2040 KB Output is correct
18 Correct 174 ms 2040 KB Output is correct
19 Correct 182 ms 2040 KB Output is correct
20 Correct 181 ms 2040 KB Output is correct
21 Correct 160 ms 2040 KB Output is correct
22 Correct 168 ms 2040 KB Output is correct
23 Correct 182 ms 2040 KB Output is correct
24 Correct 163 ms 2044 KB Output is correct
25 Correct 189 ms 2168 KB Output is correct
26 Correct 179 ms 2040 KB Output is correct
27 Correct 121 ms 2172 KB Output is correct
28 Correct 123 ms 2192 KB Output is correct
29 Correct 156 ms 2296 KB Output is correct
30 Correct 152 ms 2184 KB Output is correct
31 Correct 111 ms 2176 KB Output is correct
32 Correct 388 ms 2416 KB Output is correct
33 Correct 269 ms 2296 KB Output is correct
34 Correct 525 ms 2424 KB Output is correct
35 Correct 519 ms 2536 KB Output is correct
36 Correct 830 ms 2424 KB Output is correct
37 Execution timed out 1022 ms 2540 KB Time limit exceeded
38 Halted 0 ms 0 KB -