oj.uz

Submission #149235

# Submission time Handle Problem Language Result Execution time Memory
149235 2019-09-01T06:01:41 Z 20190901(#3597, tongnamuu, jf297, upple1) HicCup (FXCUP4_hiccup) C++17
24 / 100
 459 ms 20416 KB 
#include "hiccup.h"
#include <vector>

using namespace std;


bool Check(string str, int mid)
{
	vector<pair<char, int>> stk;

	int hCnt = 0;
	int cCnt = 0;
	bool isMake = false;
	for (int i = 0; i < str.size(); i++)
	{
		if (str[i] == 'H')
		{
			stk.push_back({ 'H', -1 });
			hCnt++;
		}
		else if (str[i] == 'C')
		{
			if (hCnt > cCnt)
				stk.push_back({ 'C', 0 });
			else
				return false;
			cCnt++;
		}
		else
		{
			if (stk.empty())
			{
				if (isMake)
					continue;
				else
					return false;
			}
			if (stk.back().first == 'H')
				return false;

			stk.push_back({ '!', stk.back().second + 1 });
		}

		if (stk.back().second == mid)
		{
			for (int i = 0; i < mid + 2; i++)
			{
				if (stk.empty())
					return false;

				if (stk.back().first == 'C')
					cCnt--;
				else if (stk.back().first == 'H')
					hCnt--;
				stk.pop_back();
			}
			isMake = true;
		}
	}

	for (int i = 0; i < stk.size(); i++)
	{
		if (stk[i].first != '!')
			return false;
	}
	return true;
}

int HicCup(string S)
{
	int lo = -1;
	int hi = (int)S.size();


	while (lo + 1 < hi)
	{
		int mid = (lo + hi) >> 1;
		if (Check(S, mid))
		{
			lo = mid;
		}
		else
		{
			hi = mid;
		}
	}

	return lo;
}

Compilation message

hiccup.cpp: In function 'bool Check(std::__cxx11::string, int)':
hiccup.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < str.size(); i++)
                  ~~^~~~~~~~~~~~
hiccup.cpp:61:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < stk.size(); i++)
                  ~~^~~~~~~~~~~~

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 6 ms 384 KB Output is correct
4 Correct 18 ms 1396 KB Output is correct
5 Correct 450 ms 20416 KB Output is correct
6 Correct 17 ms 4352 KB Output is correct
7 Correct 16 ms 4352 KB Output is correct
8 Correct 459 ms 20400 KB Output is correct
9 Correct 454 ms 20412 KB Output is correct
10 Correct 16 ms 4352 KB Output is correct
11 Correct 8 ms 384 KB Output is correct

Subtask #2
0 / 76.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 6 ms 384 KB Output is correct
4 Correct 18 ms 1396 KB Output is correct
5 Correct 450 ms 20416 KB Output is correct
6 Correct 17 ms 4352 KB Output is correct
7 Correct 16 ms 4352 KB Output is correct
8 Correct 459 ms 20400 KB Output is correct
9 Correct 454 ms 20412 KB Output is correct
10 Correct 16 ms 4352 KB Output is correct
11 Correct 99 ms 7996 KB Output is correct
12 Correct 143 ms 11316 KB Output is correct
13 Correct 37 ms 6036 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 19 ms 4556 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 10 ms 932 KB Output is correct
19 Incorrect 251 ms 20380 KB Output isn't correct
20 Halted 0 ms 0 KB -