oj.uz

Submission #47763

# Submission time Handle Problem Language Result Execution time Memory
47763 2018-05-07T05:51:46 Z daniel_02 Security Gate (JOI18_security_gate) C++17
12 / 100
 5000 ms 860 KB 
#include <bits/stdc++.h>

#define pb push_back

using namespace std;

const int N = 305;

int ans, pr[N];
vector<int>dam;

bool ch(string s)
{
    int sm = 0;
    for (int i = 0; i < s.size(); i++)
    {
        if (s[i] == '(')
            sm ++;
        else
            sm--;
        if (sm < 0)
        {
            return 0;
        }
    }

    if (sm == 0)return 1;

    return 0;
}

bool check(string s)
{
    string s1;
    s1 = s;
    if (ch(s))
    {
        return 1;
    }
    for (int i = 0; i < s.size(); i++)
    {
        for (int j = i; j < s.size(); j++)
        {
            if (s1[j] == ')')
                s1[j] = '(';
            else
                s1[j] = ')';
            if (ch(s1))
            {
                return 1;
            }
        }
        s1 = s;
    }
    return 0;
}

main()
{
    int n;

    cin >> n;

    string s, s1;

    cin >> s;
    s1 = s;

    for (int i = 0; i < s.size(); i++)
    {
        if (s[i] == 'x')
        {
            dam.pb(i);
        }
    }

    for (int msk = 0; msk < (1 << int(dam.size())); msk ++)
    {
        for (int i = 0; i < dam.size(); i++)
        {
            if (msk & (1 << i))
                s1[dam[i]] = '(';
            else
                s1[dam[i]] = ')';
        }
        if (check(s1))
        {
            ans++;
        }
    }

    cout << ans;
}

Compilation message

securitygate.cpp: In function 'bool ch(std::__cxx11::string)':
securitygate.cpp:15:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s.size(); i++)
                     ~~^~~~~~~~~~
securitygate.cpp: In function 'bool check(std::__cxx11::string)':
securitygate.cpp:40:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s.size(); i++)
                     ~~^~~~~~~~~~
securitygate.cpp:42:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = i; j < s.size(); j++)
                         ~~^~~~~~~~~~
securitygate.cpp: At global scope:
securitygate.cpp:58:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
securitygate.cpp: In function 'int main()':
securitygate.cpp:69:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s.size(); i++)
                     ~~^~~~~~~~~~
securitygate.cpp:79:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < dam.size(); i++)
                         ~~^~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 548 KB Output is correct
4 Correct 2 ms 548 KB Output is correct
5 Correct 2 ms 548 KB Output is correct
6 Correct 3 ms 548 KB Output is correct
7 Correct 2 ms 548 KB Output is correct
8 Correct 4 ms 676 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 6 ms 676 KB Output is correct
11 Correct 2 ms 676 KB Output is correct
12 Correct 2 ms 676 KB Output is correct
13 Correct 5 ms 676 KB Output is correct
14 Correct 2 ms 676 KB Output is correct
15 Correct 2 ms 676 KB Output is correct
16 Correct 2 ms 676 KB Output is correct
17 Correct 3 ms 676 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 548 KB Output is correct
4 Correct 2 ms 548 KB Output is correct
5 Correct 2 ms 548 KB Output is correct
6 Correct 3 ms 548 KB Output is correct
7 Correct 2 ms 548 KB Output is correct
8 Correct 4 ms 676 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 6 ms 676 KB Output is correct
11 Correct 2 ms 676 KB Output is correct
12 Correct 2 ms 676 KB Output is correct
13 Correct 5 ms 676 KB Output is correct
14 Correct 2 ms 676 KB Output is correct
15 Correct 2 ms 676 KB Output is correct
16 Correct 2 ms 676 KB Output is correct
17 Correct 3 ms 676 KB Output is correct
18 Correct 5 ms 676 KB Output is correct
19 Correct 64 ms 748 KB Output is correct
20 Correct 54 ms 784 KB Output is correct
21 Correct 1192 ms 788 KB Output is correct
22 Correct 888 ms 804 KB Output is correct
23 Correct 139 ms 804 KB Output is correct
24 Correct 1415 ms 812 KB Output is correct
25 Correct 3 ms 824 KB Output is correct
26 Correct 19 ms 824 KB Output is correct
27 Correct 683 ms 840 KB Output is correct
28 Correct 44 ms 840 KB Output is correct
29 Correct 12 ms 840 KB Output is correct
30 Correct 19 ms 840 KB Output is correct
31 Correct 180 ms 844 KB Output is correct

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 548 KB Output is correct
4 Correct 2 ms 548 KB Output is correct
5 Correct 2 ms 548 KB Output is correct
6 Correct 3 ms 548 KB Output is correct
7 Correct 2 ms 548 KB Output is correct
8 Correct 4 ms 676 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 6 ms 676 KB Output is correct
11 Correct 2 ms 676 KB Output is correct
12 Correct 2 ms 676 KB Output is correct
13 Correct 5 ms 676 KB Output is correct
14 Correct 2 ms 676 KB Output is correct
15 Correct 2 ms 676 KB Output is correct
16 Correct 2 ms 676 KB Output is correct
17 Correct 3 ms 676 KB Output is correct
18 Correct 5 ms 676 KB Output is correct
19 Correct 64 ms 748 KB Output is correct
20 Correct 54 ms 784 KB Output is correct
21 Correct 1192 ms 788 KB Output is correct
22 Correct 888 ms 804 KB Output is correct
23 Correct 139 ms 804 KB Output is correct
24 Correct 1415 ms 812 KB Output is correct
25 Correct 3 ms 824 KB Output is correct
26 Correct 19 ms 824 KB Output is correct
27 Correct 683 ms 840 KB Output is correct
28 Correct 44 ms 840 KB Output is correct
29 Correct 12 ms 840 KB Output is correct
30 Correct 19 ms 840 KB Output is correct
31 Correct 180 ms 844 KB Output is correct
32 Correct 444 ms 860 KB Output is correct
33 Correct 132 ms 860 KB Output is correct
34 Execution timed out 5017 ms 860 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #4
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 548 KB Output is correct
4 Correct 2 ms 548 KB Output is correct
5 Correct 2 ms 548 KB Output is correct
6 Correct 3 ms 548 KB Output is correct
7 Correct 2 ms 548 KB Output is correct
8 Correct 4 ms 676 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 6 ms 676 KB Output is correct
11 Correct 2 ms 676 KB Output is correct
12 Correct 2 ms 676 KB Output is correct
13 Correct 5 ms 676 KB Output is correct
14 Correct 2 ms 676 KB Output is correct
15 Correct 2 ms 676 KB Output is correct
16 Correct 2 ms 676 KB Output is correct
17 Correct 3 ms 676 KB Output is correct
18 Correct 5 ms 676 KB Output is correct
19 Correct 64 ms 748 KB Output is correct
20 Correct 54 ms 784 KB Output is correct
21 Correct 1192 ms 788 KB Output is correct
22 Correct 888 ms 804 KB Output is correct
23 Correct 139 ms 804 KB Output is correct
24 Correct 1415 ms 812 KB Output is correct
25 Correct 3 ms 824 KB Output is correct
26 Correct 19 ms 824 KB Output is correct
27 Correct 683 ms 840 KB Output is correct
28 Correct 44 ms 840 KB Output is correct
29 Correct 12 ms 840 KB Output is correct
30 Correct 19 ms 840 KB Output is correct
31 Correct 180 ms 844 KB Output is correct
32 Correct 444 ms 860 KB Output is correct
33 Correct 132 ms 860 KB Output is correct
34 Execution timed out 5017 ms 860 KB Time limit exceeded
35 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 548 KB Output is correct
4 Correct 2 ms 548 KB Output is correct
5 Correct 2 ms 548 KB Output is correct
6 Correct 3 ms 548 KB Output is correct
7 Correct 2 ms 548 KB Output is correct
8 Correct 4 ms 676 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 6 ms 676 KB Output is correct
11 Correct 2 ms 676 KB Output is correct
12 Correct 2 ms 676 KB Output is correct
13 Correct 5 ms 676 KB Output is correct
14 Correct 2 ms 676 KB Output is correct
15 Correct 2 ms 676 KB Output is correct
16 Correct 2 ms 676 KB Output is correct
17 Correct 3 ms 676 KB Output is correct
18 Correct 5 ms 676 KB Output is correct
19 Correct 64 ms 748 KB Output is correct
20 Correct 54 ms 784 KB Output is correct
21 Correct 1192 ms 788 KB Output is correct
22 Correct 888 ms 804 KB Output is correct
23 Correct 139 ms 804 KB Output is correct
24 Correct 1415 ms 812 KB Output is correct
25 Correct 3 ms 824 KB Output is correct
26 Correct 19 ms 824 KB Output is correct
27 Correct 683 ms 840 KB Output is correct
28 Correct 44 ms 840 KB Output is correct
29 Correct 12 ms 840 KB Output is correct
30 Correct 19 ms 840 KB Output is correct
31 Correct 180 ms 844 KB Output is correct
32 Correct 444 ms 860 KB Output is correct
33 Correct 132 ms 860 KB Output is correct
34 Execution timed out 5017 ms 860 KB Time limit exceeded
35 Halted 0 ms 0 KB -