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Submission #12681

# Submission time Handle Problem Language Result Execution time Memory
12681 2014-12-29T04:37:40 Z gs14004 Crayfish scrivener (IOI12_scrivener) C++
12 / 100
 0 ms 1088 KB 
int ops[105], prev[105][20], size[105], sz;

void Init(){
    
}

void TypeLetter(char L){
    ops[sz] = L;
    if(sz) prev[sz][0] = sz-1;
    for (int i=1; i<20; i++) {
        prev[sz][i] = prev[prev[sz][i-1]][i-1];
    }
    size[sz] = size[prev[sz][0]]+1;
    sz++;
}

void UndoCommands(int U){
    prev[sz][0] = sz-U-1;
    for (int i=1; i<20; i++) {
        prev[sz][i] = prev[prev[sz][i-1]][i-1];
    }
    size[sz] = size[prev[sz][0]];
    sz++;
}

char GetLetter(int P){
    int pos = sz-1;
    int obj = P+1;
    for (int i=19; i>=0; i--) {
        if(size[prev[pos][i]] >= obj){
            pos = prev[pos][i];
        }
    }
    return ops[pos];
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1088 KB Output is correct
2 Correct 0 ms 1088 KB Output is correct
3 Correct 0 ms 1088 KB Output is correct
4 Correct 0 ms 1088 KB Output is correct
5 Correct 0 ms 1088 KB Output is correct
6 Correct 0 ms 1088 KB Output is correct
7 Correct 0 ms 1088 KB Output is correct
8 Correct 0 ms 1088 KB Output is correct
9 Correct 0 ms 1088 KB Output is correct
10 Correct 0 ms 1088 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1088 KB Output is correct
2 Correct 0 ms 1088 KB Output is correct
3 Correct 0 ms 1088 KB Output is correct
4 Correct 0 ms 1088 KB Output is correct
5 Correct 0 ms 1088 KB Output is correct
6 Correct 0 ms 1088 KB Output is correct
7 Correct 0 ms 1088 KB Output is correct
8 Correct 0 ms 1088 KB Output is correct
9 Correct 0 ms 1088 KB Output is correct
10 Correct 0 ms 1088 KB Output is correct

Subtask #3
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 1088 KB SIGSEGV Segmentation fault
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 26.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 1088 KB futex (syscall #202) was called by the program (disallowed syscall)
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 1088 KB futex (syscall #202) was called by the program (disallowed syscall)
2 Halted 0 ms 0 KB -