답안 #148398

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
148398	2019-09-01T04:17:23 Z	Seishun Buta Yarou wa Yumemiru Shoujo no Yume wo Minai(#3781, zscoder, tmwilliamlin168)	HicCup (FXCUP4_hiccup)	C++17	100 / 100	31 ms	7296 KB

hiccup

#include "hiccup.h"
#include <bits/stdc++.h>
using namespace std;

int a[1000000];

bool chk(string &s, int l, int r, int x, int b=0) {
	if(l>r)
		return 1;
	while(s[r]=='!') {
		--r;
		++b;
	}
	b-=x;
	if(b<0)
		return 0;
	return chk(s, a[r]+1, r-1, x)&&chk(s, l, a[r]-1, x, b);
}

int HicCup(string s) {
	int n=s.size();
	//check correctness
	if(s[0]=='!')
		return -1;
	for(int i=0; i+1<n; ++i)
		if(s[i]=='H'&&s[i+1]=='!')
			return -1;
	//bracket matching
	vector<int> t;
	for(int i=0; i<n; ++i) {
		if(s[i]=='H')
			t.push_back(i);
		else if(s[i]=='C') {
			if(t.empty())
				return -1;
			a[i]=t.back();
			t.pop_back();
		}
	}
	if(t.size())
		return -1;
	int lb=0, rb=n;
	while(lb<rb) {
		int mb=(lb+rb+1)/2;
		if(chk(s, 0, n-1, mb))
			lb=mb;
		else
			rb=mb-1;
	}
	return lb;
}

Subtask #1

24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	384 KB	Output is correct
2	Correct	6 ms	384 KB	Output is correct
3	Correct	6 ms	384 KB	Output is correct
4	Correct	6 ms	640 KB	Output is correct
5	Correct	29 ms	7160 KB	Output is correct
6	Correct	21 ms	3328 KB	Output is correct
7	Correct	21 ms	3328 KB	Output is correct
8	Correct	31 ms	7160 KB	Output is correct
9	Correct	30 ms	7296 KB	Output is correct
10	Correct	19 ms	3328 KB	Output is correct
11	Correct	6 ms	384 KB	Output is correct

Subtask #2

76.0 / 76.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	384 KB	Output is correct
2	Correct	6 ms	384 KB	Output is correct
3	Correct	6 ms	384 KB	Output is correct
4	Correct	6 ms	640 KB	Output is correct
5	Correct	29 ms	7160 KB	Output is correct
6	Correct	21 ms	3328 KB	Output is correct
7	Correct	21 ms	3328 KB	Output is correct
8	Correct	31 ms	7160 KB	Output is correct
9	Correct	30 ms	7296 KB	Output is correct
10	Correct	19 ms	3328 KB	Output is correct
11	Correct	17 ms	3144 KB	Output is correct
12	Correct	15 ms	3328 KB	Output is correct
13	Correct	12 ms	3328 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	14 ms	3328 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	5 ms	384 KB	Output is correct
18	Correct	6 ms	640 KB	Output is correct
19	Correct	22 ms	7168 KB	Output is correct
20	Correct	22 ms	7168 KB	Output is correct
21	Correct	23 ms	4992 KB	Output is correct
22	Correct	22 ms	3200 KB	Output is correct
23	Correct	27 ms	3328 KB	Output is correct
24	Correct	21 ms	7296 KB	Output is correct
25	Correct	28 ms	7040 KB	Output is correct
26	Correct	24 ms	7296 KB	Output is correct
27	Correct	19 ms	5376 KB	Output is correct
28	Correct	23 ms	3584 KB	Output is correct
29	Correct	24 ms	3328 KB	Output is correct
30	Correct	5 ms	384 KB	Output is correct
31	Correct	5 ms	384 KB	Output is correct
32	Correct	7 ms	640 KB	Output is correct
33	Correct	6 ms	384 KB	Output is correct