oj.uz

답안 #485711

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
485711 2021-11-09T05:57:51 Z rk42745417 DEL13 (info1cup18_del13) C++17
6 / 100
 10 ms 1356 KB 
#include <bits/stdc++.h>
using namespace std;

#define EmiliaMyWife ios::sync_with_stdio(0); cin.tie(0);
using ll = int64_t;
using ull = uint64_t;
using uint = uint32_t;
using ld = long double;
const int INF = 0x3f3f3f3f;
const int MOD = 1e9 + 7;
const ll LINF = ll(2e18) + ll(1e15);
const double EPS = 1e-8;
static auto LamyIsCute = []() {
	EmiliaMyWife
	return 48763;
}();

const int CONTI = 1, SINGLE = 2;
bool solve() {
	int n, m;
	cin >> n >> m;
	vector<int> stat(n + 2);
	vector<int> ope1, ope2;
	stat[0] = stat[n + 1] = CONTI;
	for(int i = 0; i < m; i++) {
		int x;
		cin >> x;
		stat[x] = SINGLE;
	}
	for(int i = 1; i <= n; i++) {
		if(stat[i] && (stat[i - 1] || stat[i + 1]))
			stat[i] = CONTI;
	}
	for(int i = 1, l = 1; i <= n + 1; i++) {
		if(stat[i] == CONTI) {
			if(l < i) {
				vector<int> arr, owo, split, init;
				for(int j = l, it = j; j <= i; j++) {
					if(j == i) {
						arr.push_back(j - it);
						owo.push_back((j + it) / 2);
						break;
					}
					if(stat[j] == SINGLE) {
						arr.push_back(j - it);
						split.push_back(j);
						owo.push_back((j + it) / 2);
						it = j + 1;
					}
				}
				if(arr.size() == 1)
					return false;
				int x = 0;
				for(int a : arr)
					x ^= (a & 1);
				if(x)
					return false;
				init = arr;
				for(int i = 0; i + 1 < arr.size(); i++) {
					if(init[i] <= 2) {
						if(arr[i + 1] < arr[i])
							return false;
						while(arr[i]) {
							ope2.push_back(split[i]);
							arr[i]--;
							arr[i + 1]--;
						}
					}
					else {
						if(arr[i] & 1) {
							ope2.push_back(split[i]);
							arr[i]--;
							arr[i + 1]--;
						}
						if(init[i + 1] <= 2 && arr[i] >= 2 && arr[i + 1] % 2 == arr[i] % 2) {
							while(arr[i + 1]) {
								ope2.push_back(split[i]);
								arr[i]--;
								arr[i + 1]--;
							}
						}
					}
				}
				for(int i = 0; i < arr.size(); i++) {
					if(arr[i]) {
						if(arr[i] % 2 || init[i] <= 2)
							return false;
						while(arr[i]) {
							ope1.push_back(owo[i]);
							arr[i] -= 2;
						}
					}
				}
			}
			l = i + 1;
		}
	}
	for(int a : ope2)
		ope1.push_back(a);
	cout << ope1.size() << '\n';
	for(int i = 0; i < ope1.size(); i++)
		cout << ope1[i] << " \n"[i + 1 == ope1.size()];
	return true;
}
signed main() {
	int t;
	cin >> t;
	while(t--)
		if(!solve())
			cout << "-1\n";
}

Compilation message

del13.cpp: In function 'bool solve()':
del13.cpp:59:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for(int i = 0; i + 1 < arr.size(); i++) {
      |                    ~~~~~~^~~~~~~~~~~~
del13.cpp:84:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |     for(int i = 0; i < arr.size(); i++) {
      |                    ~~^~~~~~~~~~~~
del13.cpp:101:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |  for(int i = 0; i < ope1.size(); i++)
      |                 ~~^~~~~~~~~~~~~
del13.cpp:102:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |   cout << ope1[i] << " \n"[i + 1 == ope1.size()];
      |                            ~~~~~~^~~~~~~~~~~~~~

Subtask #1
0.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Incorrect 1 ms 204 KB Output isn't correct

Subtask #2
0.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Incorrect 1 ms 204 KB Output isn't correct
3 Incorrect 5 ms 332 KB Output isn't correct
4 Incorrect 5 ms 332 KB Output isn't correct

Subtask #3
6.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 588 KB Output is partially correct
2 Correct 3 ms 652 KB Output is partially correct

Subtask #4
0.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Incorrect 1 ms 204 KB Output isn't correct
3 Incorrect 5 ms 332 KB Output isn't correct
4 Incorrect 5 ms 332 KB Output isn't correct
5 Incorrect 1 ms 204 KB Output isn't correct
6 Incorrect 1 ms 332 KB Output isn't correct
7 Incorrect 1 ms 332 KB Output isn't correct

Subtask #5
0.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Incorrect 1 ms 204 KB Output isn't correct
3 Incorrect 5 ms 332 KB Output isn't correct
4 Incorrect 5 ms 332 KB Output isn't correct
5 Incorrect 1 ms 204 KB Output isn't correct
6 Incorrect 1 ms 332 KB Output isn't correct
7 Incorrect 1 ms 332 KB Output isn't correct
8 Incorrect 7 ms 972 KB Output isn't correct
9 Incorrect 6 ms 972 KB Output isn't correct
10 Incorrect 6 ms 728 KB Output isn't correct
11 Incorrect 10 ms 1356 KB Output isn't correct