oj.uz

Submission #647189

# Submission time Handle Problem Language Result Execution time Memory
647189 2022-10-01T21:26:02 Z Alenygam Zalmoxis (BOI18_zalmoxis) C++14
0 / 100
 14 ms 23872 KB 
#include <bits/stdc++.h>

using namespace std;

struct btNode {
	int value;
	bool left;
	bool right;
};

struct linkedListNode {
	int8_t val;
	linkedListNode *next = nullptr;
	bool inserted = false;
};

linkedListNode preallocLinked[1000001];
int lastNodeLnkd = 0;
static linkedListNode* get_new_lnkd_node() {
	return &preallocLinked[lastNodeLnkd++];
}

int main() {
	#ifdef EVAL
		freopen("zalmoxis.in", "r", stdin);
		freopen("zalmoxis.out", "w", stdout);
	#endif
	ios_base::sync_with_stdio(false);
	cin.tie(0);

	int N, K;
	cin >> N >> K;
	vector<int> values(N);
	for (auto &i: values) cin >> i;

	linkedListNode *head = get_new_lnkd_node();
	linkedListNode *tail = head;

	stack<btNode> stck;
	stck.push(btNode{30, 0, 0});

	for (int i = 0; i < N; i++) {
		while (stck.size() > 1 && (values[i] >= stck.top().value || (stck.top().left && stck.top().right))) {
			btNode &top = stck.top();
			if (!top.right && top.value != 0) {
				tail->next = get_new_lnkd_node();
				tail = tail->next;
				tail->val = top.value - 1;
				if (top.value == 1) tail->inserted = false;
				else tail->inserted = true;
				top.right = true;
			}
			stck.pop();
		}

		tail->next = get_new_lnkd_node();
		tail = tail->next;
		tail->val = values[i];
		tail->inserted = false;

		while (stck.top().value != values[i]) {
			btNode &top = stck.top();
			if (top.left) {
				// I have to go right (left completely explored)
				btNode right;
				right.value = top.value - 1;
				top.right = true;
				stck.push(right);
			} else {
				// I can go left
				btNode left;
				left.value = top.value - 1;
				top.left = true;
				stck.push(left);
			}
		}
		stck.pop(); // node is == values[i], algorithm would never run next while loop

		while (stck.size() > 1 && stck.top().left && stck.top().right) {
			btNode &top = stck.top();
			if (!top.right && top.value != 0) {
				tail->next = get_new_lnkd_node();
				tail = tail->next;
				tail->val = top.value - 1;
				if (top.value == 1) tail->inserted = false;
				else tail->inserted = true;
				top.right = true;
			}
			stck.pop();
		}
		// maybe this works idk
	}

	while (!stck.empty()) {
		btNode top = stck.top();
		if (!top.right && top.value != 0) {
			tail->next = get_new_lnkd_node();
			tail = tail->next;
			tail->val = top.value - 1;
			if (top.value == 1) tail->inserted = false;
			else tail->inserted = true;
		}
		stck.pop();
	}

	head = head->next;
	while (head != nullptr) {
		cout << (int)head->val << ' ';
		head = head->next;
	}
}

Compilation message

zalmoxis.cpp: In function 'int main()':
zalmoxis.cpp:25:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |   freopen("zalmoxis.in", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
zalmoxis.cpp:26:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |   freopen("zalmoxis.out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 12 ms 23764 KB Unexpected end of file - int32 expected
2 Incorrect 11 ms 23764 KB Unexpected end of file - int32 expected
3 Incorrect 12 ms 23764 KB Unexpected end of file - int32 expected
4 Incorrect 11 ms 23824 KB Unexpected end of file - int32 expected
5 Incorrect 11 ms 23796 KB Unexpected end of file - int32 expected
6 Incorrect 11 ms 23764 KB Unexpected end of file - int32 expected

Subtask #2
0 / 70.0

# Verdict Execution time Memory Grader output
1 Incorrect 11 ms 23764 KB Unexpected end of file - int32 expected
2 Incorrect 11 ms 23764 KB Unexpected end of file - int32 expected
3 Incorrect 11 ms 23764 KB Unexpected end of file - int32 expected
4 Incorrect 13 ms 23820 KB Unexpected end of file - int32 expected
5 Incorrect 10 ms 23764 KB Unexpected end of file - int32 expected
6 Incorrect 11 ms 23776 KB Unexpected end of file - int32 expected
7 Incorrect 11 ms 23764 KB Unexpected end of file - int32 expected
8 Incorrect 11 ms 23764 KB Unexpected end of file - int32 expected
9 Incorrect 10 ms 23764 KB Unexpected end of file - int32 expected
10 Incorrect 14 ms 23872 KB Unexpected end of file - int32 expected
11 Incorrect 11 ms 23804 KB Unexpected end of file - int32 expected
12 Incorrect 11 ms 23804 KB Unexpected end of file - int32 expected
13 Incorrect 12 ms 23796 KB Unexpected end of file - int32 expected
14 Incorrect 14 ms 23768 KB Unexpected end of file - int32 expected