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Submission #12676

# Submission time Handle Problem Language Result Execution time Memory
12676 2014-12-28T16:25:37 Z gs14004 Crayfish scrivener (IOI12_scrivener) C++
34 / 100
 1000 ms 12796 KB 
int ops[1000005], prev[1000005], size[1000005], sz;

void Init(){
    
}

void TypeLetter(char L){
    ops[sz] = L;
    if(sz) size[sz] = size[prev[sz]]+1;
    else size[sz] = 1;
    sz++;
    prev[sz] = sz-1;
}

void UndoCommands(int U){
    prev[sz] = sz-U-1;
    size[sz] = size[prev[sz]];
    sz++;
    prev[sz] = sz-1;
}

char GetLetter(int P){
    int i = prev[sz];
    int piv = size[i] - P - 1;
    while (piv) {
        while(!ops[i]) i = prev[i];
        i = prev[i];
        piv--;
    }
    while (!ops[i]) i = prev[i];
    return ops[i];
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 12796 KB Output is correct
2 Correct 0 ms 12796 KB Output is correct
3 Correct 0 ms 12796 KB Output is correct
4 Correct 0 ms 12796 KB Output is correct
5 Correct 0 ms 12796 KB Output is correct
6 Correct 0 ms 12796 KB Output is correct
7 Correct 0 ms 12796 KB Output is correct
8 Correct 0 ms 12796 KB Output is correct
9 Correct 0 ms 12796 KB Output is correct
10 Correct 0 ms 12796 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 12796 KB Output is correct
2 Correct 0 ms 12796 KB Output is correct
3 Correct 0 ms 12796 KB Output is correct
4 Correct 0 ms 12796 KB Output is correct
5 Correct 0 ms 12796 KB Output is correct
6 Correct 0 ms 12796 KB Output is correct
7 Correct 0 ms 12796 KB Output is correct
8 Correct 0 ms 12796 KB Output is correct
9 Correct 0 ms 12796 KB Output is correct
10 Correct 0 ms 12796 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 12796 KB Output is correct
2 Correct 0 ms 12796 KB Output is correct
3 Correct 0 ms 12796 KB Output is correct
4 Correct 0 ms 12796 KB Output is correct
5 Correct 0 ms 12796 KB Output is correct
6 Correct 0 ms 12796 KB Output is correct
7 Correct 0 ms 12796 KB Output is correct
8 Correct 0 ms 12796 KB Output is correct
9 Correct 0 ms 12796 KB Output is correct
10 Correct 0 ms 12796 KB Output is correct

Subtask #4
0.0 / 26.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1000 ms 12796 KB Program timed out
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1000 ms 12796 KB Program timed out
2 Halted 0 ms 0 KB -