Submission #73742

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
73742	2018-08-28T20:28:39 Z	TadijaSebez	Security Gate (JOI18_security_gate)	C++11	12 / 100	5000 ms	728 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) 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

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	584 KB	Output is correct
4	Correct	4 ms	584 KB	Output is correct
5	Correct	3 ms	584 KB	Output is correct
6	Correct	3 ms	584 KB	Output is correct
7	Correct	2 ms	584 KB	Output is correct
8	Correct	3 ms	584 KB	Output is correct
9	Correct	3 ms	584 KB	Output is correct
10	Correct	2 ms	584 KB	Output is correct
11	Correct	2 ms	584 KB	Output is correct
12	Correct	3 ms	584 KB	Output is correct
13	Correct	3 ms	584 KB	Output is correct
14	Correct	2 ms	584 KB	Output is correct
15	Correct	3 ms	584 KB	Output is correct
16	Correct	4 ms	584 KB	Output is correct
17	Correct	3 ms	584 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	584 KB	Output is correct
4	Correct	4 ms	584 KB	Output is correct
5	Correct	3 ms	584 KB	Output is correct
6	Correct	3 ms	584 KB	Output is correct
7	Correct	2 ms	584 KB	Output is correct
8	Correct	3 ms	584 KB	Output is correct
9	Correct	3 ms	584 KB	Output is correct
10	Correct	2 ms	584 KB	Output is correct
11	Correct	2 ms	584 KB	Output is correct
12	Correct	3 ms	584 KB	Output is correct
13	Correct	3 ms	584 KB	Output is correct
14	Correct	2 ms	584 KB	Output is correct
15	Correct	3 ms	584 KB	Output is correct
16	Correct	4 ms	584 KB	Output is correct
17	Correct	3 ms	584 KB	Output is correct
18	Correct	2 ms	584 KB	Output is correct
19	Correct	3 ms	584 KB	Output is correct
20	Correct	3 ms	584 KB	Output is correct
21	Correct	13 ms	584 KB	Output is correct
22	Correct	28 ms	600 KB	Output is correct
23	Correct	2 ms	600 KB	Output is correct
24	Correct	16 ms	600 KB	Output is correct
25	Correct	3 ms	600 KB	Output is correct
26	Correct	5 ms	600 KB	Output is correct
27	Correct	25 ms	600 KB	Output is correct
28	Correct	6 ms	600 KB	Output is correct
29	Correct	5 ms	600 KB	Output is correct
30	Correct	5 ms	600 KB	Output is correct
31	Correct	39 ms	600 KB	Output is correct

Subtask #3
0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	584 KB	Output is correct
4	Correct	4 ms	584 KB	Output is correct
5	Correct	3 ms	584 KB	Output is correct
6	Correct	3 ms	584 KB	Output is correct
7	Correct	2 ms	584 KB	Output is correct
8	Correct	3 ms	584 KB	Output is correct
9	Correct	3 ms	584 KB	Output is correct
10	Correct	2 ms	584 KB	Output is correct
11	Correct	2 ms	584 KB	Output is correct
12	Correct	3 ms	584 KB	Output is correct
13	Correct	3 ms	584 KB	Output is correct
14	Correct	2 ms	584 KB	Output is correct
15	Correct	3 ms	584 KB	Output is correct
16	Correct	4 ms	584 KB	Output is correct
17	Correct	3 ms	584 KB	Output is correct
18	Correct	2 ms	584 KB	Output is correct
19	Correct	3 ms	584 KB	Output is correct
20	Correct	3 ms	584 KB	Output is correct
21	Correct	13 ms	584 KB	Output is correct
22	Correct	28 ms	600 KB	Output is correct
23	Correct	2 ms	600 KB	Output is correct
24	Correct	16 ms	600 KB	Output is correct
25	Correct	3 ms	600 KB	Output is correct
26	Correct	5 ms	600 KB	Output is correct
27	Correct	25 ms	600 KB	Output is correct
28	Correct	6 ms	600 KB	Output is correct
29	Correct	5 ms	600 KB	Output is correct
30	Correct	5 ms	600 KB	Output is correct
31	Correct	39 ms	600 KB	Output is correct
32	Correct	33 ms	600 KB	Output is correct
33	Correct	8 ms	600 KB	Output is correct
34	Correct	996 ms	620 KB	Output is correct
35	Correct	25 ms	620 KB	Output is correct
36	Correct	49 ms	656 KB	Output is correct
37	Correct	757 ms	708 KB	Output is correct
38	Execution timed out	5026 ms	728 KB	Time limit exceeded
39	Halted	0 ms	0 KB	-

Subtask #4
0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	584 KB	Output is correct
4	Correct	4 ms	584 KB	Output is correct
5	Correct	3 ms	584 KB	Output is correct
6	Correct	3 ms	584 KB	Output is correct
7	Correct	2 ms	584 KB	Output is correct
8	Correct	3 ms	584 KB	Output is correct
9	Correct	3 ms	584 KB	Output is correct
10	Correct	2 ms	584 KB	Output is correct
11	Correct	2 ms	584 KB	Output is correct
12	Correct	3 ms	584 KB	Output is correct
13	Correct	3 ms	584 KB	Output is correct
14	Correct	2 ms	584 KB	Output is correct
15	Correct	3 ms	584 KB	Output is correct
16	Correct	4 ms	584 KB	Output is correct
17	Correct	3 ms	584 KB	Output is correct
18	Correct	2 ms	584 KB	Output is correct
19	Correct	3 ms	584 KB	Output is correct
20	Correct	3 ms	584 KB	Output is correct
21	Correct	13 ms	584 KB	Output is correct
22	Correct	28 ms	600 KB	Output is correct
23	Correct	2 ms	600 KB	Output is correct
24	Correct	16 ms	600 KB	Output is correct
25	Correct	3 ms	600 KB	Output is correct
26	Correct	5 ms	600 KB	Output is correct
27	Correct	25 ms	600 KB	Output is correct
28	Correct	6 ms	600 KB	Output is correct
29	Correct	5 ms	600 KB	Output is correct
30	Correct	5 ms	600 KB	Output is correct
31	Correct	39 ms	600 KB	Output is correct
32	Correct	33 ms	600 KB	Output is correct
33	Correct	8 ms	600 KB	Output is correct
34	Correct	996 ms	620 KB	Output is correct
35	Correct	25 ms	620 KB	Output is correct
36	Correct	49 ms	656 KB	Output is correct
37	Correct	757 ms	708 KB	Output is correct
38	Execution timed out	5026 ms	728 KB	Time limit exceeded
39	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	584 KB	Output is correct
4	Correct	4 ms	584 KB	Output is correct
5	Correct	3 ms	584 KB	Output is correct
6	Correct	3 ms	584 KB	Output is correct
7	Correct	2 ms	584 KB	Output is correct
8	Correct	3 ms	584 KB	Output is correct
9	Correct	3 ms	584 KB	Output is correct
10	Correct	2 ms	584 KB	Output is correct
11	Correct	2 ms	584 KB	Output is correct
12	Correct	3 ms	584 KB	Output is correct
13	Correct	3 ms	584 KB	Output is correct
14	Correct	2 ms	584 KB	Output is correct
15	Correct	3 ms	584 KB	Output is correct
16	Correct	4 ms	584 KB	Output is correct
17	Correct	3 ms	584 KB	Output is correct
18	Correct	2 ms	584 KB	Output is correct
19	Correct	3 ms	584 KB	Output is correct
20	Correct	3 ms	584 KB	Output is correct
21	Correct	13 ms	584 KB	Output is correct
22	Correct	28 ms	600 KB	Output is correct
23	Correct	2 ms	600 KB	Output is correct
24	Correct	16 ms	600 KB	Output is correct
25	Correct	3 ms	600 KB	Output is correct
26	Correct	5 ms	600 KB	Output is correct
27	Correct	25 ms	600 KB	Output is correct
28	Correct	6 ms	600 KB	Output is correct
29	Correct	5 ms	600 KB	Output is correct
30	Correct	5 ms	600 KB	Output is correct
31	Correct	39 ms	600 KB	Output is correct
32	Correct	33 ms	600 KB	Output is correct
33	Correct	8 ms	600 KB	Output is correct
34	Correct	996 ms	620 KB	Output is correct
35	Correct	25 ms	620 KB	Output is correct
36	Correct	49 ms	656 KB	Output is correct
37	Correct	757 ms	708 KB	Output is correct
38	Execution timed out	5026 ms	728 KB	Time limit exceeded
39	Halted	0 ms	0 KB	-

Submission #73742

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