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Submission #739243

# Submission time Handle Problem Language Result Execution time Memory
739243 2023-05-10T08:57:05 Z Toxtaq Miners (IOI07_miners) C++17
45 / 100
 1500 ms 29284 KB 
#include<bits/stdc++.h>
using namespace std;
int n;
string s; /// M-0, B-1, F-2
long long rec(int indx, int mine, int last11, int last12, int last21, int last22){
    long long res = 0;
    set<int>st;
    if(indx == n)return 0;
    if(mine == 1){
        if(last11 != -1)st.insert(last11);
        if(last12 != -1)st.insert(last12);
        last12 = last11;
        last11 = s[indx];
    }
    else{
        if(last21 != -1)st.insert(last21);
        if(last22 != -1)st.insert(last22);
        last22 = last21;
        last21 = s[indx];
    }
    st.insert(s[indx]);
    res = st.size() + max(rec(indx + 1, 1, last11, last12, last21, last22), rec(indx + 1, 2, last11, last12, last21, last22));
    return res;
}
int main()
{
    cin >> n >> s;
    cout << max(rec(0, 1, -1, -1, -1, -1), rec(0, 2, -1, -1, -1, -1));
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 304 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 300 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 111 ms 280 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 152 ms 288 KB Output is correct

Subtask #6
0 / 7.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1581 ms 212 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1567 ms 468 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1564 ms 1492 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1575 ms 3156 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1562 ms 6740 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #11
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1573 ms 16440 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #12
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1565 ms 29284 KB Time limit exceeded
2 Halted 0 ms 0 KB -