Submission #1339655

#TimeUsernameProblemLanguageResultExecution timeMemory
1339655windowwifeKoala Game (APIO17_koala)C++20
Compilation error
0 ms0 KiB
#ifndef rtgsp
#include "koala.h"
#endif // rtgsp

#include<bits/stdc++.h>
#define ll long long
#define task ""
using namespace std;
const int maxn = 1e6 + 2;

#ifdef rtgsp
static int N, W;
static int P[105];

static int maxQueries = 3200;
static int numQueries;

void playRound(int *B, int *R) {
    int i, j;

    int S = 0;
    for (i=0;i<N;++i) {
        if ( !(B[i] >= 0 && B[i] <= W) ) {
            printf("Invalid query.\n");
            exit(0);
        }
        S += B[i];
    }
    if (S > W) {
        printf("Invalid query.\n");
        exit(0);
    }

    numQueries++;
    if (numQueries > maxQueries) {
        printf("Too many queries.\n");
        exit(0);
    }

    int cache[2][205];
    int num[2][205];
    char taken[105][205];

    for (i=0;i<205;++i) {
        cache[1][i] = 0;
        num[1][i] = 0;
    }

    for (i=0;i<N;++i) {
        int v = B[i]+1;
        int ii = i&1;
        int o = ii^1;
        for (j=0;j<=W;++j) {
            cache[ii][j] = cache[o][j];
            num[ii][j] = num[o][j];
            taken[i][j] = 0;
        }
        for (j=W;j>=v;--j) {
            int h = cache[o][j-v] + P[i];
            int hn = num[o][j-v] + 1;
            if (h > cache[ii][j] || (h == cache[ii][j] && hn > num[ii][j])) {
                cache[ii][j] = h;
                num[ii][j] = hn;
                taken[i][j] = 1;
            } else {
                taken[i][j] = 0;
            }
        }
    }

    int cur = W;
    for (i=N-1;i>=0;--i) {
        R[i] = taken[i][cur] ? (B[i] + 1) : 0;
        cur -= R[i];
    }
}
#endif //rtgsp

int B[maxn], R[maxn];

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

int maxValue (int N, int W)
{
    vector<int> cands, nxt;
    for (int i = 0; i < N; i++) cands.push_back(i);
    for (int j = 0; j < 4; j++)
    {
        if ((int)cands.size() == 1) break;
        for (int i = 0; i < N; i++) B[i] = 0;
        for (int i : cands) B[i] = 100/(int)cands.size();
        playRound(B, R);
        nxt.clear();
        for (int i : cands)
        {
            if (R[i] > B[i]) nxt.push_back(i);
        }
        cands = nxt;
    }
    return cands[0];
}

int greaterValue (int N, int W)
{
    for (int i = 0; i < N; i++) B[i] = 0;
    int comp[5] = {1, 2, 3, 5, 8}, l = 0, r = 4;
    while (l <= r)
    {
        int m = (l + r)/2;
        B[0] = B[1] = comp[m];
        playRound(B, R);
        if (R[0] > comp[m] && R[1] > comp[m]) l = m + 1;
        else if (R[0] <= comp[m] && R[1] <= comp[m]) r = m - 1;
        else return R[0] < R[1];
    }
    return R[0] < R[1];
}

int id[maxn], id2[maxn];

bool cmp (int x, int y)
{
    for (int i = 0; i < N; i++) B[i] = 0;
    B[x] = B[y] = 100;
    playRound(B, R);
    return R[y] > 100;
}

void merge_sort (int l, int r)
{
    if (l == r) return;
    int m = (l + r)/2;
    merge_sort(l, m);
    merge_sort(m + 1, r);
    int x = l, y = m + 1, cur = l;
    while (x <= m || y <= r)
    {
        if (x > m)
        {
            id2[cur++] = id[y++];
        }
        else if (y > r)
        {
            id2[cur++] = id[x++];
        }
        else
        {
            if (cmp(id[x], id[y])) id2[cur++] = id[x++];
            else id2[cur++] = id[y++];
        }
    }
    for (int i = l; i <= r; i++) id[i] = id2[i];
}

void allValues (int N, int W, int* P)
{
    if (W == 200)
    {
        for (int i = 0; i < N; i++) id[i] = i;
        merge_sort(0, N - 1);
        for (int i = 0; i < N; i++) P[id[i]] = i + 1;
    }

}

#ifdef rtgsp
mt19937_64 rd(0);

static void runGame(int F) {
    int i;

    N = 100;
    W = ((F == 4) ? 200 : 100);

    for (i=0;i<N;++i) {
        P[i] = i+1;
    }

    shuffle(P, P + N, rd);

    for (i=0;i<N;++i) {
        cout << P[i] << " ";
    }
    cout << '\n';

    numQueries = 0;
    if (F == 1) {
        printf("%d\n", minValue(N, W));
    } else if (F == 2) {
        printf("%d\n", maxValue(N, W));
    } else if (F == 3) {
        printf("%d\n", greaterValue(N, W));
    } else if (F == 4) {
        int userP[105];
        allValues(N, W, userP);
        for (i=0;i<N;i++) {
            printf("%d ",userP[i]);
        }
        printf("\n");
    }
    printf("Made %d calls to playRound.\n", numQueries);
}

static void grader() {
    int i;

    int F, G;
    scanf("%d %d",&F,&G);

    for (i=0;i<G;i++) {
        runGame(F);
    }
}

int main() {
    grader();
    return 0;
}
#endif // rtgsp

Compilation message (stderr)

koala.cpp: In function 'bool cmp(int, int)':
koala.cpp:133:25: error: 'N' was not declared in this scope
  133 |     for (int i = 0; i < N; i++) B[i] = 0;
      |                         ^