oj.uz

Submission #150115

# Submission time Handle Problem Language Result Execution time Memory
150115 2019-09-01T07:45:02 Z 이 대회 미분 되나요?(#3668, wookje, edenooo, jms100300) HicCup (FXCUP4_hiccup) C++17
100 / 100
 85 ms 8192 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++;
		}
		else if (S[i] == 'C')
		{
			if (!v.empty())
			{
				lv[i] = v.back();
				v.pop_back();
			}
			cnt--;
		}
		else
		{
			if (i == 0 || S[i - 1] == 'H') return -1;
		}

		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:70:16: 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 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 7 ms 640 KB Output is correct
5 Correct 42 ms 8192 KB Output is correct
6 Correct 13 ms 4352 KB Output is correct
7 Correct 14 ms 4292 KB Output is correct
8 Correct 44 ms 8192 KB Output is correct
9 Correct 44 ms 8192 KB Output is correct
10 Correct 14 ms 4224 KB Output is correct
11 Correct 6 ms 384 KB Output is correct

Subtask #2
76.0 / 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 7 ms 640 KB Output is correct
5 Correct 42 ms 8192 KB Output is correct
6 Correct 13 ms 4352 KB Output is correct
7 Correct 14 ms 4292 KB Output is correct
8 Correct 44 ms 8192 KB Output is correct
9 Correct 44 ms 8192 KB Output is correct
10 Correct 14 ms 4224 KB Output is correct
11 Correct 17 ms 5120 KB Output is correct
12 Correct 17 ms 5760 KB Output is correct
13 Correct 15 ms 4480 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 14 ms 4352 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 128 KB Output is correct
18 Correct 6 ms 768 KB Output is correct
19 Correct 42 ms 8056 KB Output is correct
20 Correct 31 ms 8192 KB Output is correct
21 Correct 65 ms 5888 KB Output is correct
22 Correct 58 ms 4224 KB Output is correct
23 Correct 85 ms 4352 KB Output is correct
24 Correct 27 ms 8192 KB Output is correct
25 Correct 39 ms 8184 KB Output is correct
26 Correct 27 ms 8192 KB Output is correct
27 Correct 68 ms 6272 KB Output is correct
28 Correct 84 ms 4608 KB Output is correct
29 Correct 81 ms 4352 KB Output is correct
30 Correct 6 ms 380 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 11 ms 768 KB Output is correct
33 Correct 6 ms 384 KB Output is correct