oj.uz

Submission #168586

# Submission time Handle Problem Language Result Execution time Memory
168586 2019-12-14T03:20:25 Z tri Crayfish scrivener (IOI12_scrivener) C++11
34 / 100
 1000 ms 97784 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;

#define pb push_back
#define f first
#define s second

const int MAXN = 1e6 + 1e3;
const int LOGN = 21;

char lets[MAXN];
int L[MAXN], nLetI[MAXN], jmp[MAXN][LOGN];

void Init() {
    memset(lets, 0, sizeof(lets));
    memset(L, 0, sizeof(L));
    memset(nLetI, 0, sizeof(nLetI));
    memset(jmp, 0, sizeof(jmp));
}

int cI = 1;

inline void computeJump(int i) {
    for (int log = 1; log < LOGN; log++) {
        jmp[i][log] = jmp[jmp[i][log - 1]][log - 1];
    }
}

void TypeLetter(char cLet) {
    lets[cI] = cLet;
    L[cI] = L[cI - 1] + 1;

    if (lets[cI - 1] == 0) {
        nLetI[cI] = nLetI[cI - 1];
    } else {
        nLetI[cI] = cI - 1;
    }

    jmp[cI][0] = nLetI[cI];
    computeJump(cI);
    cI++;
}

void UndoCommands(int U) {
    L[cI] = L[cI - U - 1];

    if (lets[cI - U - 1] == 0) {
        nLetI[cI] = nLetI[cI - U - 1];
    } else {
        nLetI[cI] = cI - U - 1;
    }

    jmp[cI][0] = nLetI[cI];
    computeJump(cI);
    cI++;
}

char GetLetter(int P) {
    int nJ = L[cI - 1] - P - 1;
    int i = cI - 1;
    if (lets[i] == 0) {
        i = nLetI[i];
    }

    for (int log = LOGN - 1, jmps = 1 << log; log >= 0; log--, jmps /= 2) {
        if (jmps <= nJ) {
            i = jmp[i][log];
            nJ -= jmps;
        }
    }
    return lets[i];
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 91356 KB Output is correct
2 Correct 76 ms 91384 KB Output is correct
3 Correct 76 ms 91512 KB Output is correct
4 Correct 76 ms 91384 KB Output is correct
5 Correct 76 ms 91384 KB Output is correct
6 Correct 76 ms 91384 KB Output is correct
7 Correct 76 ms 91460 KB Output is correct
8 Correct 76 ms 91356 KB Output is correct
9 Correct 78 ms 91560 KB Output is correct
10 Correct 76 ms 91324 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 91452 KB Output is correct
2 Correct 88 ms 91384 KB Output is correct
3 Correct 90 ms 91652 KB Output is correct
4 Correct 77 ms 91384 KB Output is correct
5 Correct 77 ms 91384 KB Output is correct
6 Correct 89 ms 91424 KB Output is correct
7 Correct 77 ms 91384 KB Output is correct
8 Correct 89 ms 91384 KB Output is correct
9 Correct 89 ms 91384 KB Output is correct
10 Correct 90 ms 91384 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 91520 KB Output is correct
2 Correct 79 ms 91384 KB Output is correct
3 Correct 78 ms 91384 KB Output is correct
4 Correct 77 ms 91512 KB Output is correct
5 Correct 78 ms 91496 KB Output is correct
6 Correct 84 ms 91480 KB Output is correct
7 Correct 78 ms 91512 KB Output is correct
8 Correct 83 ms 91468 KB Output is correct
9 Correct 78 ms 91512 KB Output is correct
10 Correct 84 ms 91404 KB Output is correct

Subtask #4
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 562 ms 92532 KB Output is correct
2 Correct 739 ms 92380 KB Output is correct
3 Correct 452 ms 92408 KB Output is correct
4 Correct 516 ms 92536 KB Output is correct
5 Correct 489 ms 92792 KB Output is correct
6 Correct 465 ms 92536 KB Output is correct
7 Correct 912 ms 92664 KB Output is correct
8 Execution timed out 1012 ms 97144 KB Time limit exceeded
9 Halted 0 ms 0 KB -

Subtask #5
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 656 ms 92724 KB Output is correct
2 Correct 645 ms 92920 KB Output is correct
3 Correct 453 ms 92704 KB Output is correct
4 Correct 485 ms 93176 KB Output is correct
5 Correct 478 ms 92408 KB Output is correct
6 Correct 484 ms 92380 KB Output is correct
7 Correct 493 ms 92280 KB Output is correct
8 Correct 978 ms 92488 KB Output is correct
9 Execution timed out 1022 ms 97784 KB Time limit exceeded
10 Halted 0 ms 0 KB -