oj.uz

답안 #208681

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
208681 2020-03-12T01:56:11 Z E869120 수열 (BOI14_sequence) C++14
34 / 100
 491 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];

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; } }

		long long val = 0, maxt = -1, r = 1;
		for (int j = 9; j >= 0; j--) {
			if (v[j] == 1) { val += r * j; if (j != 0) maxt = j; r *= 10; }
		}
		if (r == 1) {
			if (flag == true) val = 1;
		}
		else {
			if (maxt == -1) val = 10;
			else val += 9LL * maxt * (r / 10LL);
		}
		long long eval = 1000000LL * val + 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:112:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N); init();
  ~~~~~^~~~~~~~~~
sequence.cpp:113:35: 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

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2168 KB Output is correct
2 Correct 84 ms 2040 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 79 ms 2296 KB Output is correct
5 Correct 6 ms 2040 KB Output is correct
6 Correct 6 ms 2040 KB Output is correct
7 Correct 38 ms 2040 KB Output is correct
8 Correct 45 ms 2040 KB Output is correct
9 Correct 6 ms 2044 KB Output is correct
10 Correct 81 ms 2168 KB Output is correct
11 Correct 6 ms 2040 KB Output is correct
12 Correct 82 ms 2172 KB Output is correct
13 Correct 84 ms 2168 KB Output is correct
14 Correct 88 ms 2040 KB Output is correct
15 Correct 82 ms 2040 KB Output is correct

Subtask #2
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2040 KB Output is correct
2 Correct 87 ms 2040 KB Output is correct
3 Correct 6 ms 2168 KB Output is correct
4 Correct 77 ms 2040 KB Output is correct
5 Correct 6 ms 2044 KB Output is correct
6 Correct 6 ms 2044 KB Output is correct
7 Correct 42 ms 2040 KB Output is correct
8 Correct 37 ms 2040 KB Output is correct
9 Correct 42 ms 2040 KB Output is correct
10 Correct 6 ms 2172 KB Output is correct
11 Incorrect 62 ms 2168 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2040 KB Output is correct
2 Correct 87 ms 2168 KB Output is correct
3 Correct 92 ms 2296 KB Output is correct
4 Correct 116 ms 2168 KB Output is correct
5 Correct 89 ms 2168 KB Output is correct
6 Correct 73 ms 2168 KB Output is correct
7 Correct 354 ms 2424 KB Output is correct
8 Correct 240 ms 2424 KB Output is correct
9 Correct 491 ms 2424 KB Output is correct
10 Correct 488 ms 2552 KB Output is correct

Subtask #4
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2168 KB Output is correct
2 Correct 81 ms 2040 KB Output is correct
3 Correct 6 ms 2040 KB Output is correct
4 Correct 78 ms 2040 KB Output is correct
5 Incorrect 476 ms 2424 KB Output isn't correct
6 Halted 0 ms 0 KB -