답안 #73744 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
73744	2018-08-28T20:31:46 Z	TadijaSebez	Security Gate (JOI18_security_gate)	C++11	12 / 100	5000 ms	620 KB

securitygate

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define mp make_pair
const int N=105;
char s[N];
int n;
bool good(int l, int r)
{
	int c=0;
	for(int i=0;i<n;i++)
	{
		if(l<=i && i<=r)
		{
			if(s[i]==')') c++;
			else c--;
		}
		else
		{
			if(s[i]=='(') c++;
			else c--;
		}
		if(c<0) return 0;
	}
	return c==0;
}
bool Check()
{
	int c=0,d=0,l,r,i,j;
	for(i=0;i<n;i++){ c+=s[i]=='('?1:-1;if(c<0) break;}if(!c) return 1;l=i;
	for(i=n-1;~i;i--){ d+=s[i]==')'?1:-1;if(d<0) break;}if(!d) return 1;r=i;
	for(i=0;i<=l;i++) for(j=r;j<n;j++) if(good(i,j)) return 1;
	if(good(0,-1)) return 1;
	return 0;
}
int main()
{
	int i,j,k=0;
	scanf("%i",&n);
	scanf("%s",s);
	vector<int> pos;
	for(i=0;i<n;i++) if(s[i]=='x') pos.pb(i),k++;
	int sol=0;
	if(k>20 || (n&1)) return printf("0\n"),0;
	for(j=0;j<1<<k;j++)
	{
		for(i=0;i<k;i++) s[pos[i]]='('+((j>>i)&1);
		//cout << s << endl;
		if(Check()) sol++;
	}
	printf("%i\n",sol);
	return 0;
}

Compilation message

securitygate.cpp: In function 'int main()':
securitygate.cpp:40:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i",&n);
  ~~~~~^~~~~~~~~
securitygate.cpp:41:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s);
  ~~~~~^~~~~~~~

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	3 ms	488 KB	Output is correct
4	Correct	3 ms	488 KB	Output is correct
5	Correct	3 ms	488 KB	Output is correct
6	Correct	4 ms	488 KB	Output is correct
7	Correct	2 ms	520 KB	Output is correct
8	Correct	3 ms	520 KB	Output is correct
9	Correct	3 ms	568 KB	Output is correct
10	Correct	3 ms	568 KB	Output is correct
11	Correct	3 ms	604 KB	Output is correct
12	Correct	3 ms	604 KB	Output is correct
13	Correct	3 ms	604 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Correct	2 ms	604 KB	Output is correct
16	Correct	3 ms	604 KB	Output is correct
17	Correct	2 ms	604 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	3 ms	488 KB	Output is correct
4	Correct	3 ms	488 KB	Output is correct
5	Correct	3 ms	488 KB	Output is correct
6	Correct	4 ms	488 KB	Output is correct
7	Correct	2 ms	520 KB	Output is correct
8	Correct	3 ms	520 KB	Output is correct
9	Correct	3 ms	568 KB	Output is correct
10	Correct	3 ms	568 KB	Output is correct
11	Correct	3 ms	604 KB	Output is correct
12	Correct	3 ms	604 KB	Output is correct
13	Correct	3 ms	604 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Correct	2 ms	604 KB	Output is correct
16	Correct	3 ms	604 KB	Output is correct
17	Correct	2 ms	604 KB	Output is correct
18	Correct	3 ms	604 KB	Output is correct
19	Correct	3 ms	604 KB	Output is correct
20	Correct	3 ms	604 KB	Output is correct
21	Correct	14 ms	604 KB	Output is correct
22	Correct	30 ms	604 KB	Output is correct
23	Correct	3 ms	604 KB	Output is correct
24	Correct	17 ms	620 KB	Output is correct
25	Correct	4 ms	620 KB	Output is correct
26	Correct	6 ms	620 KB	Output is correct
27	Correct	27 ms	620 KB	Output is correct
28	Correct	8 ms	620 KB	Output is correct
29	Correct	5 ms	620 KB	Output is correct
30	Correct	5 ms	620 KB	Output is correct
31	Correct	40 ms	620 KB	Output is correct

Subtask #3
0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	3 ms	488 KB	Output is correct
4	Correct	3 ms	488 KB	Output is correct
5	Correct	3 ms	488 KB	Output is correct
6	Correct	4 ms	488 KB	Output is correct
7	Correct	2 ms	520 KB	Output is correct
8	Correct	3 ms	520 KB	Output is correct
9	Correct	3 ms	568 KB	Output is correct
10	Correct	3 ms	568 KB	Output is correct
11	Correct	3 ms	604 KB	Output is correct
12	Correct	3 ms	604 KB	Output is correct
13	Correct	3 ms	604 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Correct	2 ms	604 KB	Output is correct
16	Correct	3 ms	604 KB	Output is correct
17	Correct	2 ms	604 KB	Output is correct
18	Correct	3 ms	604 KB	Output is correct
19	Correct	3 ms	604 KB	Output is correct
20	Correct	3 ms	604 KB	Output is correct
21	Correct	14 ms	604 KB	Output is correct
22	Correct	30 ms	604 KB	Output is correct
23	Correct	3 ms	604 KB	Output is correct
24	Correct	17 ms	620 KB	Output is correct
25	Correct	4 ms	620 KB	Output is correct
26	Correct	6 ms	620 KB	Output is correct
27	Correct	27 ms	620 KB	Output is correct
28	Correct	8 ms	620 KB	Output is correct
29	Correct	5 ms	620 KB	Output is correct
30	Correct	5 ms	620 KB	Output is correct
31	Correct	40 ms	620 KB	Output is correct
32	Correct	33 ms	620 KB	Output is correct
33	Correct	10 ms	620 KB	Output is correct
34	Correct	991 ms	620 KB	Output is correct
35	Correct	23 ms	620 KB	Output is correct
36	Correct	50 ms	620 KB	Output is correct
37	Correct	775 ms	620 KB	Output is correct
38	Execution timed out	5029 ms	620 KB	Time limit exceeded
39	Halted	0 ms	0 KB	-

Subtask #4
0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	3 ms	488 KB	Output is correct
4	Correct	3 ms	488 KB	Output is correct
5	Correct	3 ms	488 KB	Output is correct
6	Correct	4 ms	488 KB	Output is correct
7	Correct	2 ms	520 KB	Output is correct
8	Correct	3 ms	520 KB	Output is correct
9	Correct	3 ms	568 KB	Output is correct
10	Correct	3 ms	568 KB	Output is correct
11	Correct	3 ms	604 KB	Output is correct
12	Correct	3 ms	604 KB	Output is correct
13	Correct	3 ms	604 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Correct	2 ms	604 KB	Output is correct
16	Correct	3 ms	604 KB	Output is correct
17	Correct	2 ms	604 KB	Output is correct
18	Correct	3 ms	604 KB	Output is correct
19	Correct	3 ms	604 KB	Output is correct
20	Correct	3 ms	604 KB	Output is correct
21	Correct	14 ms	604 KB	Output is correct
22	Correct	30 ms	604 KB	Output is correct
23	Correct	3 ms	604 KB	Output is correct
24	Correct	17 ms	620 KB	Output is correct
25	Correct	4 ms	620 KB	Output is correct
26	Correct	6 ms	620 KB	Output is correct
27	Correct	27 ms	620 KB	Output is correct
28	Correct	8 ms	620 KB	Output is correct
29	Correct	5 ms	620 KB	Output is correct
30	Correct	5 ms	620 KB	Output is correct
31	Correct	40 ms	620 KB	Output is correct
32	Correct	33 ms	620 KB	Output is correct
33	Correct	10 ms	620 KB	Output is correct
34	Correct	991 ms	620 KB	Output is correct
35	Correct	23 ms	620 KB	Output is correct
36	Correct	50 ms	620 KB	Output is correct
37	Correct	775 ms	620 KB	Output is correct
38	Execution timed out	5029 ms	620 KB	Time limit exceeded
39	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	3 ms	488 KB	Output is correct
4	Correct	3 ms	488 KB	Output is correct
5	Correct	3 ms	488 KB	Output is correct
6	Correct	4 ms	488 KB	Output is correct
7	Correct	2 ms	520 KB	Output is correct
8	Correct	3 ms	520 KB	Output is correct
9	Correct	3 ms	568 KB	Output is correct
10	Correct	3 ms	568 KB	Output is correct
11	Correct	3 ms	604 KB	Output is correct
12	Correct	3 ms	604 KB	Output is correct
13	Correct	3 ms	604 KB	Output is correct
14	Correct	2 ms	604 KB	Output is correct
15	Correct	2 ms	604 KB	Output is correct
16	Correct	3 ms	604 KB	Output is correct
17	Correct	2 ms	604 KB	Output is correct
18	Correct	3 ms	604 KB	Output is correct
19	Correct	3 ms	604 KB	Output is correct
20	Correct	3 ms	604 KB	Output is correct
21	Correct	14 ms	604 KB	Output is correct
22	Correct	30 ms	604 KB	Output is correct
23	Correct	3 ms	604 KB	Output is correct
24	Correct	17 ms	620 KB	Output is correct
25	Correct	4 ms	620 KB	Output is correct
26	Correct	6 ms	620 KB	Output is correct
27	Correct	27 ms	620 KB	Output is correct
28	Correct	8 ms	620 KB	Output is correct
29	Correct	5 ms	620 KB	Output is correct
30	Correct	5 ms	620 KB	Output is correct
31	Correct	40 ms	620 KB	Output is correct
32	Correct	33 ms	620 KB	Output is correct
33	Correct	10 ms	620 KB	Output is correct
34	Correct	991 ms	620 KB	Output is correct
35	Correct	23 ms	620 KB	Output is correct
36	Correct	50 ms	620 KB	Output is correct
37	Correct	775 ms	620 KB	Output is correct
38	Execution timed out	5029 ms	620 KB	Time limit exceeded
39	Halted	0 ms	0 KB	-

답안 #73744

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 8.0 / 8.0

Subtask #3 0 / 18.0

Subtask #4 0 / 43.0

Subtask #5 0 / 27.0

Subtask #1
4.0 / 4.0

Subtask #2
8.0 / 8.0

Subtask #3
0 / 18.0

Subtask #4
0 / 43.0

Subtask #5
0 / 27.0