oj.uz

Submission #208679

# Submission time Handle Problem Language Result Execution time Memory
208679 2020-03-12T01:51:22 Z E869120 Sequence (BOI14_sequence) C++14
67 / 100
 1000 ms 2680 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];

void 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]);
	}
}

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); }
		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() {
	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:70:16: warning: unused variable 'ret' [-Wunused-variable]
  int maxt = 0, ret = 0;
                ^~~
sequence.cpp: In function 'int main()':
sequence.cpp:102:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N); init();
  ~~~~~^~~~~~~~~~
sequence.cpp:103:35: 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 142 ms 2168 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 134 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 62 ms 2040 KB Output is correct
8 Correct 70 ms 2168 KB Output is correct
9 Correct 6 ms 2040 KB Output is correct
10 Correct 155 ms 2296 KB Output is correct
11 Correct 6 ms 2040 KB Output is correct
12 Correct 131 ms 2168 KB Output is correct
13 Correct 142 ms 2040 KB Output is correct
14 Correct 160 ms 2148 KB Output is correct
15 Correct 170 ms 2040 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 140 ms 2040 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 146 ms 2168 KB Output is correct
5 Correct 6 ms 2040 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 70 ms 2044 KB Output is correct
8 Correct 61 ms 2040 KB Output is correct
9 Correct 70 ms 2040 KB Output is correct
10 Correct 6 ms 2040 KB Output is correct
11 Correct 121 ms 2168 KB Output is correct
12 Correct 158 ms 2296 KB Output is correct
13 Correct 6 ms 2040 KB Output is correct
14 Correct 147 ms 2040 KB Output is correct
15 Correct 141 ms 2168 KB Output is correct
16 Correct 162 ms 2168 KB Output is correct
17 Correct 156 ms 2168 KB Output is correct
18 Correct 146 ms 2168 KB Output is correct
19 Correct 143 ms 2168 KB Output is correct
20 Correct 155 ms 2040 KB Output is correct
21 Correct 142 ms 2040 KB Output is correct
22 Correct 159 ms 2168 KB Output is correct
23 Correct 155 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 116 ms 2168 KB Output is correct
3 Correct 114 ms 2296 KB Output is correct
4 Correct 126 ms 2168 KB Output is correct
5 Correct 126 ms 2296 KB Output is correct
6 Correct 98 ms 2168 KB Output is correct
7 Correct 385 ms 2296 KB Output is correct
8 Correct 257 ms 2296 KB Output is correct
9 Correct 526 ms 2552 KB Output is correct
10 Correct 523 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 148 ms 2040 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 134 ms 2040 KB Output is correct
5 Correct 559 ms 2424 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 6 ms 2040 KB Output is correct
8 Correct 66 ms 2040 KB Output is correct
9 Correct 64 ms 2168 KB Output is correct
10 Correct 70 ms 2040 KB Output is correct
11 Correct 524 ms 2424 KB Output is correct
12 Correct 508 ms 2552 KB Output is correct
13 Correct 6 ms 2040 KB Output is correct
14 Correct 112 ms 2040 KB Output is correct
15 Correct 157 ms 2168 KB Output is correct
16 Correct 6 ms 2040 KB Output is correct
17 Correct 134 ms 2168 KB Output is correct
18 Correct 139 ms 2040 KB Output is correct
19 Correct 164 ms 2168 KB Output is correct
20 Correct 160 ms 2168 KB Output is correct
21 Correct 134 ms 2040 KB Output is correct
22 Correct 148 ms 2044 KB Output is correct
23 Correct 164 ms 2144 KB Output is correct
24 Correct 141 ms 2040 KB Output is correct
25 Correct 157 ms 2040 KB Output is correct
26 Correct 155 ms 2040 KB Output is correct
27 Correct 114 ms 2168 KB Output is correct
28 Correct 111 ms 2168 KB Output is correct
29 Correct 128 ms 2168 KB Output is correct
30 Correct 128 ms 2192 KB Output is correct
31 Correct 101 ms 2296 KB Output is correct
32 Correct 385 ms 2296 KB Output is correct
33 Correct 262 ms 2296 KB Output is correct
34 Correct 518 ms 2424 KB Output is correct
35 Correct 518 ms 2552 KB Output is correct
36 Correct 800 ms 2556 KB Output is correct
37 Correct 985 ms 2680 KB Output is correct
38 Correct 662 ms 2428 KB Output is correct
39 Execution timed out 1010 ms 2680 KB Time limit exceeded
40 Halted 0 ms 0 KB -