oj.uz

답안 #253641

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
253641 2020-07-28T13:27:59 Z atoiz 코알라 (APIO17_koala) C++14
100 / 100
 95 ms 512 KB 
#include "koala.h"
#include <cassert>
#include <algorithm>
#include <iostream>
#include <cstring>
#include <functional>
#include <numeric>

using namespace std;

#define FOR(i, a, b) for (int i = a; i <= b; ++i)
#define FORB(i, a, b) for (int i = a; i >= b; --i)
int A[100], B[100];

int minValue(int N, int W) {
    // TODO: Implement Subtask 1 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    FOR(i, 1, N - 1) A[i] = 0;
    A[0] = 1;
    playRound(A, B);
    FOR(i, 0, N - 1) if (A[i] >= B[i]) return i;
    assert(false);
    return 0;
}

int maxValue(int N, int W) {
    // TODO: Implement Subtask 2 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    bool C[N];
    FOR(i, 0, N - 1) C[i] = 1;

    for (int _ = 0; _ < 4; ++_) {
        int cnt = count(C, C + N, 1);
        FOR(i, 0, N - 1) A[i] = C[i] * N / cnt;
        playRound(A, B);
        FOR(i, 0, N - 1) C[i] = C[i] && (A[i] < B[i]);
    }

    assert(count(C, C + N, 1) == 1);
    FOR(i, 0, N - 1) if (C[i]) return i;
    assert(false);
    return 0;
}

int greaterValue(int N, int W) {
    // TODO: Implement Subtask 3 solution here.
    // You may leave this function unmodified if you are not attempting this
    // subtask.
    int lo = 1, hi = 7;
    while (true) {
        assert(lo <= hi);
        int mid = (lo + hi) >> 1;
        FOR(i, 2, N - 1) A[i] = 0;
        A[0] = A[1] = mid + (mid == 7);
        playRound(A, B);
        if ((A[0] < B[0]) != (A[1] < B[1])) return A[1] < B[1];
        if (A[0] < B[0]) lo = mid + 1;
        else hi = mid - 1;
    }
    assert(false);
    return 0;
}

void allValues(int N, int W, int *P) {
    if (W == 2*N) {
        // TODO: Implement Subtask 4 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.

        int Q[N], T[N];
        iota(Q, Q + N, 0);

        auto comp = [&](int i, int j) {
            memset(A, 0, sizeof A);
            A[i] = A[j] = W / 2;
            playRound(A, B);
            return A[i] >= B[i];
        };

        function<void(int, int)> msort = [&](int l, int r) {
            if (l == r) return;
            int m = (l + r) >> 1;
            msort(l, m), msort(m + 1, r);
            memcpy(T + l, Q + l, sizeof(Q[0]) * (r - l + 1));
            for (int i = l, j = m + 1, k = l; k <= r; ++k) {
                Q[k] = (j > r || (i <= m && comp(T[i], T[j]))) ? T[i++] : T[j++]; 
            }
        };

        msort(0, N - 1);
        FOR(i, 0, N - 1) P[Q[i]] = i + 1;
    } else {
        // TODO: Implement Subtask 5 solution here.
        // You may leave this block unmodified if you are not attempting this
        // subtask.

        int Q[N + 1];
        FOR(i, 0, N - 1) P[i] = 0;
        memset(Q, -1, sizeof Q);
        FOR(x, 1, 50) {
            memset(A, 0, sizeof A);
            FOR(y, 1, x - 1) A[Q[y]] = 1;
            int cur = x;
            FOR(i, 0, N - 1) if (!A[i] && cur) A[i] = 1, --cur;
            playRound(A, B);
            FOR(i, 0, N - 1) if (!P[i] && A[i] >= B[i]) P[i] = x, Q[x] = i;
            assert(~Q[x]);
            FOR(i, 0, N - 1) if (P[i] == x) assert(Q[x] == i);
        }

        FOR(x, 51, 67) {
            FOR(i, 0, N - 1) A[i] = (P[i] < 100 - x);
            playRound(A, B);
            FOR(i, 0, N - 1) if (!P[i] && A[i] >= B[i]) P[i] = x, Q[x] = i;
            assert(~Q[x]);
            FOR(i, 0, N - 1) if (P[i] == x) assert(Q[x] == i);
        }

        memset(A, 0, sizeof A);
        FOR(i, 0, N - 1) if (!P[i] || P[i] > 50) A[i] = 2;
        playRound(A, B);
        int cur = 68;
        FOR(i, 0, N - 1) if (!P[i] && A[i] >= B[i]) P[i] = cur, Q[cur] = i, ++cur;
        assert(cur == 76);

        auto get = [&](int a, int b, int c, int x, int f) {
            FOR(i, 0, N - 1) {
                if (!P[i]) A[i] = f;
                else if (P[i] <= c) A[i] = 0;
                else if (P[i] <= b) A[i] = 1;
                else if (P[i] <= a) A[i] = 2;
                else A[i] = 3;
            }
            playRound(A, B);
            FOR(i, 0, N - 1) if (!P[i] && A[i] >= B[i]) P[i] = x, Q[x] = i;
            assert(~Q[x]);
            FOR(i, 0, N - 1) if (P[i] == x) assert(Q[x] == i);
        };

        // Why .....
        // Just why ..... T_T

        get(100, 52, 49, 76, 2);
        get(100, 54, 50, 77, 2);
        get(100, 56, 50, 78, 2);
        get(100, 58, 51, 79, 2);
        get(100, 60, 51, 80, 2);
        cur = 81;
        FOR(i, 0, N - 1) if (!P[i]) P[i] = cur, Q[cur] = i, ++cur;

        FOR(x, 68, 75) P[Q[x]] = 0, Q[x] = -1;
        get(75, 64, 62, 68, 2);
        get(75, 65, 62, 69, 2);
        get(75, 67, 59, 70, 2);
        get(75, 70, 58, 71, 2);
        get(77, 71, 54, 72, 2);
        get(78, 72, 52, 73, 2);
        get(79, 73, 50, 74, 2);
        FOR(i, 0, N - 1) if (!P[i]) P[i] = 75, Q[75] = i;
        assert(~Q[75]);
        FOR(i, 0, N - 1) if (P[i] == 75) assert(Q[75] == i);

        FOR(x, 81, 100) P[Q[x]] = 0, Q[x] = -1;
        get(100, 62, 52, 81, 2);
        get(100, 64, 53, 82, 2);
        get(100, 66, 54, 83, 2);
        get(100, 68, 54, 84, 2);
        get(100, 70, 55, 85, 2);
        get(100, 72, 56, 86, 2);
        get(100, 74, 56, 87, 2);
        get(100, 76, 57, 88, 2);
        get(100, 78, 58, 89, 2);
        get(100, 80, 58, 90, 2);
        get(100, 82, 59, 91, 2);
        get(100, 84, 60, 92, 2);
        get(100, 86, 60, 93, 2);
        get(100, 88, 61, 94, 2);
        get(100, 90, 62, 95, 2);
        get(100, 92, 62, 96, 2);
        get(100, 94, 63, 97, 2);
        get(100, 96, 64, 98, 2);
        get(100, 98, 64, 99, 2);
        FOR(i, 0, N - 1) if (!P[i]) P[i] = 100, Q[100] = i;
        assert(~Q[100]);
        FOR(i, 0, N - 1) if (P[i] == 100) assert(Q[100] == i);

    }
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 384 KB Output is correct
2 Correct 17 ms 384 KB Output is correct
3 Correct 17 ms 384 KB Output is correct
4 Correct 17 ms 384 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 85 ms 384 KB Output is correct
2 Correct 95 ms 384 KB Output is correct
3 Correct 84 ms 384 KB Output is correct
4 Correct 84 ms 512 KB Output is correct
5 Correct 84 ms 384 KB Output is correct
6 Correct 87 ms 384 KB Output is correct
7 Correct 86 ms 384 KB Output is correct
8 Correct 86 ms 384 KB Output is correct
9 Correct 83 ms 384 KB Output is correct
10 Correct 85 ms 384 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 384 KB Output is correct
2 Correct 46 ms 384 KB Output is correct
3 Correct 44 ms 384 KB Output is correct
4 Correct 43 ms 384 KB Output is correct
5 Correct 42 ms 384 KB Output is correct
6 Correct 43 ms 384 KB Output is correct
7 Correct 42 ms 384 KB Output is correct
8 Correct 42 ms 384 KB Output is correct
9 Correct 42 ms 384 KB Output is correct
10 Correct 41 ms 384 KB Output is correct
11 Correct 43 ms 384 KB Output is correct
12 Correct 26 ms 512 KB Output is correct
13 Correct 42 ms 384 KB Output is correct
14 Correct 39 ms 384 KB Output is correct
15 Correct 39 ms 384 KB Output is correct
16 Correct 37 ms 384 KB Output is correct
17 Correct 38 ms 376 KB Output is correct
18 Correct 39 ms 384 KB Output is correct
19 Correct 38 ms 384 KB Output is correct
20 Correct 40 ms 384 KB Output is correct

Subtask #5
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 288 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 6 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 4 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 4 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 4 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 4 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 6 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 4 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 4 ms 384 KB Output is correct
37 Correct 4 ms 384 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 4 ms 384 KB Output is correct
40 Correct 4 ms 384 KB Output is correct