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Submission #208678

# Submission time Handle Problem Language Result Execution time Memory
208678 2020-03-12T01:48:19 Z E869120 Sequence (BOI14_sequence) C++14
67 / 100
 1000 ms 2556 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 181 ms 2168 KB Output is correct
3 Correct 6 ms 2168 KB Output is correct
4 Correct 165 ms 2040 KB Output is correct
5 Correct 6 ms 2168 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 89 ms 2172 KB Output is correct
8 Correct 102 ms 2040 KB Output is correct
9 Correct 6 ms 2040 KB Output is correct
10 Correct 185 ms 2040 KB Output is correct
11 Correct 7 ms 2040 KB Output is correct
12 Correct 178 ms 2144 KB Output is correct
13 Correct 167 ms 2040 KB Output is correct
14 Correct 190 ms 2168 KB Output is correct
15 Correct 194 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 183 ms 2040 KB Output is correct
3 Correct 7 ms 2040 KB Output is correct
4 Correct 166 ms 2140 KB Output is correct
5 Correct 6 ms 2040 KB Output is correct
6 Correct 6 ms 2168 KB Output is correct
7 Correct 91 ms 2168 KB Output is correct
8 Correct 91 ms 2144 KB Output is correct
9 Correct 94 ms 2040 KB Output is correct
10 Correct 6 ms 2040 KB Output is correct
11 Correct 149 ms 2168 KB Output is correct
12 Correct 196 ms 2168 KB Output is correct
13 Correct 7 ms 2168 KB Output is correct
14 Correct 156 ms 2040 KB Output is correct
15 Correct 178 ms 2168 KB Output is correct
16 Correct 188 ms 2040 KB Output is correct
17 Correct 184 ms 2296 KB Output is correct
18 Correct 159 ms 2040 KB Output is correct
19 Correct 179 ms 2296 KB Output is correct
20 Correct 210 ms 2040 KB Output is correct
21 Correct 178 ms 2044 KB Output is correct
22 Correct 184 ms 2040 KB Output is correct
23 Correct 182 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 122 ms 2168 KB Output is correct
3 Correct 135 ms 2296 KB Output is correct
4 Correct 150 ms 2168 KB Output is correct
5 Correct 150 ms 2168 KB Output is correct
6 Correct 114 ms 2168 KB Output is correct
7 Correct 398 ms 2424 KB Output is correct
8 Correct 270 ms 2296 KB Output is correct
9 Correct 526 ms 2556 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 166 ms 2168 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 155 ms 2040 KB Output is correct
5 Correct 576 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 91 ms 2040 KB Output is correct
9 Correct 90 ms 2168 KB Output is correct
10 Correct 99 ms 2168 KB Output is correct
11 Correct 537 ms 2424 KB Output is correct
12 Correct 517 ms 2552 KB Output is correct
13 Correct 6 ms 2040 KB Output is correct
14 Correct 139 ms 2040 KB Output is correct
15 Correct 178 ms 2040 KB Output is correct
16 Correct 6 ms 2040 KB Output is correct
17 Correct 154 ms 2040 KB Output is correct
18 Correct 161 ms 2168 KB Output is correct
19 Correct 180 ms 2040 KB Output is correct
20 Correct 185 ms 2044 KB Output is correct
21 Correct 159 ms 2040 KB Output is correct
22 Correct 167 ms 2168 KB Output is correct
23 Correct 181 ms 2168 KB Output is correct
24 Correct 164 ms 2040 KB Output is correct
25 Correct 183 ms 2040 KB Output is correct
26 Correct 190 ms 2168 KB Output is correct
27 Correct 120 ms 2168 KB Output is correct
28 Correct 124 ms 2184 KB Output is correct
29 Correct 148 ms 2168 KB Output is correct
30 Correct 157 ms 2296 KB Output is correct
31 Correct 110 ms 2168 KB Output is correct
32 Correct 397 ms 2296 KB Output is correct
33 Correct 276 ms 2296 KB Output is correct
34 Correct 522 ms 2424 KB Output is correct
35 Correct 529 ms 2552 KB Output is correct
36 Correct 817 ms 2552 KB Output is correct
37 Execution timed out 1016 ms 2552 KB Time limit exceeded
38 Halted 0 ms 0 KB -