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Submission #150041

# Submission time Handle Problem Language Result Execution time Memory
150041 2019-09-01T07:36:17 Z 이 대회 미분 되나요?(#3668, wookje, edenooo, jms100300) HicCup (FXCUP4_hiccup) C++17
24 / 100
 43 ms 8320 KB 
#include "hiccup.h"
#include<string>
#include<vector>
#include<algorithm>
using namespace std;

int N;
string s;
int lv[1000101];

bool f(int K)
{
	vector<pair<int, int> > v;
	for (int i = 0; i < s.size(); i++)
	{
		if (s[i] == 'C')
		{
			while (!v.empty() && v.back().first > lv[i])
				return false;
			v.push_back({ lv[i], 0 });
			while (!v.empty() && v.back().second >= K) v.pop_back();
		}
		else if (s[i] == '!')
		{
			if (!v.empty()) v.back().second++;
			while (!v.empty() && v.back().second >= K) v.pop_back();
		}
	}
	while (!v.empty())
	{
		if (v.back().second < K) return false;
		v.pop_back();
	}
	return true;
}

int HicCup(std::string S) {
	vector<int> v;
	N = S.size();
	s = S;
	int cnt = 0;
	for (int i = 0; i < N; i++)
	{
		if (S[i] == 'H')
		{
			v.push_back(cnt);
			cnt++;
		}
		if (S[i] == 'C')
		{
			if (!v.empty())
			{
				lv[i] = v.back();
				v.pop_back();
			}
			cnt--;
		}
		if (cnt < 0) return -1;
	}
	if (cnt > 0) return -1;

	int lo = 0, hi = 1000001;
	for (int i = 0; i < 21; i++)
	{
		int mid = lo + hi >> 1;
		if (f(mid)) lo = mid;
		else hi = mid;
	}
	return lo;
}

Compilation message

hiccup.cpp: In function 'bool f(int)':
hiccup.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < s.size(); i++)
                  ~~^~~~~~~~~~
hiccup.cpp: In function 'int HicCup(std::__cxx11::string)':
hiccup.cpp:65:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid = lo + hi >> 1;
             ~~~^~~~

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 20 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 7 ms 640 KB Output is correct
5 Correct 43 ms 8192 KB Output is correct
6 Correct 14 ms 4352 KB Output is correct
7 Correct 14 ms 4352 KB Output is correct
8 Correct 42 ms 8192 KB Output is correct
9 Correct 39 ms 8320 KB Output is correct
10 Correct 15 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 20 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 7 ms 640 KB Output is correct
5 Correct 43 ms 8192 KB Output is correct
6 Correct 14 ms 4352 KB Output is correct
7 Correct 14 ms 4352 KB Output is correct
8 Correct 42 ms 8192 KB Output is correct
9 Correct 39 ms 8320 KB Output is correct
10 Correct 15 ms 4352 KB Output is correct
11 Correct 16 ms 5168 KB Output is correct
12 Correct 16 ms 5888 KB Output is correct
13 Correct 14 ms 4480 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Incorrect 30 ms 8192 KB Output isn't correct
16 Halted 0 ms 0 KB -