oj.uz

Submission #157336

# Submission time Handle Problem Language Result Execution time Memory
157336 2019-10-10T20:14:08 Z dolphingarlic Koala Game (APIO17_koala) C++14
100 / 100
 69 ms 1016 KB 
#include "koala.h"
#include <bits/stdc++.h>
using namespace std;

int B[100], R[100];

bool cmp(int a, int b, int N, int W) {
    fill(B, B + N, 0);
    B[a] = B[b] = W;
    playRound(B, R);
    return (R[b] > W);
}
vector<int> mgs(vector<int> v, int N, int W) {
    if (v.size() == 1) return v;
 
    vector<int> a, b;
    a.insert(a.begin(), v.begin(), v.begin() + (v.size() + 1) / 2);
    b.insert(b.begin(), v.begin() + (v.size() + 1) / 2, v.end());
    a = mgs(a, N, W), b = mgs(b, N, W);
 
    vector<int> sorted;
    int aptr = 0, bptr = 0;
    while (aptr < a.size() && bptr < b.size()) {
        if (cmp(a[aptr], b[bptr], N, W)) sorted.push_back(a[aptr++]);
        else sorted.push_back(b[bptr++]);
    }
    sorted.insert(sorted.end(), a.begin() + aptr, a.end());
    sorted.insert(sorted.end(), b.begin() + bptr, b.end());
 
    return sorted;
}

void sp(vector<int> v, int N, int W, int* P, int l = 1, int r = 100) {
    if (l == r) P[v[0]] = l;
    else {
        int x = min((int)sqrt(2 * l), W / (r - l + 1));

        fill(B, B + N, 0);
        for (int i : v) B[i] = x;

        playRound(B, R);
        vector<int> less, greater;
        for (int i : v) if (R[i] > x) greater.push_back(i);
        else less.push_back(i);

        sp(less, N, W, P, l, l + less.size() - 1);
        sp(greater, N, W, P, r - greater.size() + 1, r);
    }
}

int minValue(int N, int W) {
    fill(B, B + N, 0);
    fill(R, R + N, 0);
    B[0] = 1;
    playRound(B, R);
    if (R[0] < 2) return 0;
    else for (int i = 1; i < N; i++) if (!R[i]) return i;
    return -1;
}

int maxValue(int N, int W) {
    vector<int> v;
    for (int i = 0; i < N; i++) v.push_back(i);
    while (v.size() != 1) {
        int k = W / v.size();
        fill(B, B + N, 0);
        for (int i : v) B[i] = k;
        playRound(B, R);
        v.clear();
        for (int i = 0; i < N; i++) if (R[i] > k) v.push_back(i);
    }
    return v[0];
}

int greaterValue(int N, int W) {
    int l = 1, r = 9;
    while (l != r) {
        int mid = (l + r) / 2;
        B[0] = B[1] = mid;
        playRound(B, R);

        if (R[0] > mid && R[1] > mid) l = mid + 1;
        else if (R[0] <= mid && R[1] <= mid) r = mid - 1;
        else return (R[0] < R[1]);
    }
    B[0] = B[1] = l;
    playRound(B, R);
    return (R[0] < R[1]);
}

void allValues(int N, int W, int *P) {
    if (W == 2 * N) {
        vector<int> v;
        for (int i = 0; i < N; i++) v.push_back(i);
        vector<int> sorted = mgs(v, N, W / 2);
        for (int i = 0; i < N; i++) P[sorted[i]] = i + 1;
    } else {
        vector<int> v;
        for (int i = 0; i < N; i++) v.push_back(i);
        sp(v, N, W, P);
    }
}

Compilation message

koala.cpp: In function 'std::vector<int> mgs(std::vector<int>, int, int)':
koala.cpp:23:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while (aptr < a.size() && bptr < b.size()) {
            ~~~~~^~~~~~~~~~
koala.cpp:23:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while (aptr < a.size() && bptr < b.size()) {
                               ~~~~~^~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 504 KB Output is correct
2 Correct 6 ms 376 KB Output is correct
3 Correct 6 ms 376 KB Output is correct
4 Correct 6 ms 380 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 376 KB Output is correct
2 Correct 16 ms 376 KB Output is correct
3 Correct 16 ms 376 KB Output is correct
4 Correct 16 ms 376 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 760 KB Output is correct
2 Correct 69 ms 748 KB Output is correct
3 Correct 60 ms 760 KB Output is correct
4 Correct 59 ms 768 KB Output is correct
5 Correct 60 ms 764 KB Output is correct
6 Correct 61 ms 1016 KB Output is correct
7 Correct 60 ms 632 KB Output is correct
8 Correct 61 ms 768 KB Output is correct
9 Correct 60 ms 632 KB Output is correct
10 Correct 59 ms 756 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 276 KB Output is correct
2 Correct 35 ms 424 KB Output is correct
3 Correct 35 ms 376 KB Output is correct
4 Correct 37 ms 376 KB Output is correct
5 Correct 34 ms 376 KB Output is correct
6 Correct 35 ms 376 KB Output is correct
7 Correct 35 ms 376 KB Output is correct
8 Correct 33 ms 376 KB Output is correct
9 Correct 33 ms 504 KB Output is correct
10 Correct 34 ms 376 KB Output is correct
11 Correct 34 ms 376 KB Output is correct
12 Correct 22 ms 376 KB Output is correct
13 Correct 38 ms 376 KB Output is correct
14 Correct 38 ms 376 KB Output is correct
15 Correct 33 ms 504 KB Output is correct
16 Correct 30 ms 376 KB Output is correct
17 Correct 31 ms 420 KB Output is correct
18 Correct 34 ms 376 KB Output is correct
19 Correct 31 ms 504 KB Output is correct
20 Correct 31 ms 376 KB Output is correct

Subtask #5
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 8 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 504 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 6 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 6 ms 376 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 5 ms 376 KB Output is correct