oj.uz

Submission #149178

# Submission time Handle Problem Language Result Execution time Memory
149178 2019-09-01T05:54:04 Z 20190901(#3597, tongnamuu, jf297, upple1) HicCup (FXCUP4_hiccup) C++17
24 / 100
 445 ms 20404 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;
	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() || stk.back().first == 'H')
				return false;
			else
				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();
			}
		}
	}

	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:13:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < str.size(); i++)
                  ~~^~~~~~~~~~~~
hiccup.cpp:52:20: 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 5 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 19 ms 1396 KB Output is correct
5 Correct 426 ms 20404 KB Output is correct
6 Correct 16 ms 4268 KB Output is correct
7 Correct 16 ms 4352 KB Output is correct
8 Correct 445 ms 20388 KB Output is correct
9 Correct 427 ms 20208 KB Output is correct
10 Correct 16 ms 4352 KB Output is correct
11 Correct 6 ms 384 KB Output is correct

Subtask #2
0 / 76.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 19 ms 1396 KB Output is correct
5 Correct 426 ms 20404 KB Output is correct
6 Correct 16 ms 4268 KB Output is correct
7 Correct 16 ms 4352 KB Output is correct
8 Correct 445 ms 20388 KB Output is correct
9 Correct 427 ms 20208 KB Output is correct
10 Correct 16 ms 4352 KB Output is correct
11 Correct 93 ms 7956 KB Output is correct
12 Correct 142 ms 11260 KB Output is correct
13 Correct 35 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 5 ms 128 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 9 ms 928 KB Output is correct
19 Incorrect 241 ms 20404 KB Output isn't correct
20 Halted 0 ms 0 KB -