oj.uz

Submission #206988

# Submission time Handle Problem Language Result Execution time Memory
206988 2020-03-06T03:43:16 Z joylintp Miners (IOI07_miners) C++17
16 / 100
 25 ms 632 KB 
#include<bits/stdc++.h>
using namespace std;

int cc(string s)
{
    set<char> ss;
    for (char c : s)
        ss.insert(c);
    return (int)ss.size();
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n;
    string s;
    cin >> n >> s;

    int ans = 0;
    string a, b;
    for (int i = 0; i < n; )
    {
        int r = i;
        while (r < n && s[i] == s[r])
            r++;

        for (int j = i; j < r; j++)
            if ((j - i) & 1)
            {
                a += s[j];
                if (a.size() > 3)
                    a = a.substr(1);
                ans += cc(a);
            }
            else
            {
                b += s[j];
                if (b.size() > 3)
                    b = b.substr(1);
                ans += cc(b);
            }
        i = r;
    }
    cout << ans << '\n';

    return 0;
}

//      *   *  *****  *   *  *   *
//     *   *  *      **  *  *   *
//    *****  *****  * * *  *   *
//   *   *      *  *  **  *   *
//  *   *  *****  *   *   ***

//      ***** ***** *   * *     ***** *   * ***** *****
//        *  *   * *   * *       *   **  *   *   *   *
//       *  *   * ***** *       *   * * *   *   *****
//   *  *  *   *   *   *       *   *  **   *   *
//  ****  *****   *   ***** ***** *   *   *   *

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct

Subtask #4
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct

Subtask #6
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct

Subtask #7
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 424 KB Output isn't correct

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 376 KB Output isn't correct

Subtask #9
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 376 KB Output isn't correct

Subtask #10
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 9 ms 376 KB Output isn't correct

Subtask #11
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 14 ms 632 KB Output isn't correct

Subtask #12
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 25 ms 632 KB Output isn't correct