oj.uz

Submission #569336

# Submission time Handle Problem Language Result Execution time Memory
569336 2022-05-27T10:22:55 Z Ooops_sorry Koala Game (APIO17_koala) C++14
100 / 100
 57 ms 356 KB 
#include<bits/stdc++.h>

#ifndef LOCAL
   #include "koala.h"
#endif // LOCAL

using namespace std;
#define pb push_back

#ifdef LOCAL

mt19937 rnd(51);

static int N, W;
static int P[105];

static int maxQueries = 3200;
static int numQueries;

static void runGame(int F);
static void grader();

int main() {
    grader();
    return 0;
}

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

int minValue(int n, int w) {
    int b[n], r[n];
    for (int i = 0; i < n; i++) b[i] = 0;
    b[0] = 1;
    playRound(b, r);
    for (int i = 1; i < n; i++) {
        if (r[i] == 0) {
            return i;
        }
    }
    return 0;
}

int maxValue(int n, int w) {
    vector<int> arr(n);
    iota(arr.begin(), arr.end(), 0);
    while (arr.size() > 1) {
        int sz = arr.size();
        int can = w / sz;
        int b[n], r[n];
        for (int i = 0; i < n; i++) b[i] = 0;
        for (auto to : arr) {
            b[to] = can;
        }
        playRound(b, r);
        vector<int> nw;
        for (auto to : arr) {
            if (b[to] == can && r[to] > can) {
                nw.pb(to);
            }
        }
        swap(arr, nw);
    }
    return arr[0];
}

int greaterValue(int n, int w) {
    int l = 1, r = 9;
    while (r - l > 1) {
        int mid = (r + l) / 2;
        int b[n], r1[n];
        for (int i = 0; i < n; i++) b[i] = 0;
        b[0] = b[1] = mid;
        playRound(b, r1);
        if (r1[0] > mid && r1[1] > mid) {
            l = mid + 1;
        } else if (r1[0] <= mid && r1[1] <= mid) {
            r = mid - 1;
        } else {
            return r1[0] < mid;
        }
    }
    int b[n], r1[n];
    for (int i = 0; i < n; i++) b[i] = 0;
    b[0] = b[1] = l;
    playRound(b, r1);
    return r1[0] < l;
}

void solve(int l, int r, vector<int> arr, int *p, bool t, int w, int n) {
    if (l == r) {
        p[arr[0]] = l;
        return;
    }
    int mid;
    if (t) {
        mid = min((int)sqrt(2 * l), w / (r - l + 1));
    } else {
        mid = w / (r - l + 1);
    }
    int b[n], r1[n];
    for (int i = 0; i < n; i++) b[i] = 0;
    for (auto to : arr) {
        b[to] = mid;
    }
    playRound(b, r1);
    vector<int> sm, bg;
    for (auto to : arr) {
        if (b[to] == mid && r1[to] > mid) {
            bg.pb(to);
        } else {
            sm.pb(to);
        }
    }
    solve(l, l + (int)sm.size() - 1, sm, p, t, w, n);
    solve(r - (int)bg.size() + 1, r, bg, p, t, w, n);
}

void allValues(int n, int w, int *p) {
    vector<int> arr(n);
    iota(arr.begin(), arr.end(), 0);
    if (w == 2 * n) {
        solve(1, n, arr, p, 0, w, n);
    } else {
        solve(1, n, arr, p, 1, w, n);
    }
}

#ifdef LOCAL

static void runGame(int F) {
    int i;
    N = 100;
    W = 100;
    for (i=0;i<N;++i) {
        P[i] = i + 1;
    }
    shuffle(P, P + N, rnd);
    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) {
        int val = greaterValue(N, W);
        assert(val == (P[0] < P[1]));
    } else if (F == 4) {
        int userP[105];
        allValues(N, W, userP);
        for (i=0;i<N;i++) {
            printf("%d ",userP[i]);
            assert(userP[i] == P[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);
    }
}

#endif

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 208 KB Output is correct
2 Correct 5 ms 208 KB Output is correct
3 Correct 4 ms 208 KB Output is correct
4 Correct 4 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 320 KB Output is correct
2 Correct 13 ms 316 KB Output is correct
3 Correct 13 ms 208 KB Output is correct
4 Correct 11 ms 320 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 296 KB Output is correct
2 Correct 57 ms 324 KB Output is correct
3 Correct 47 ms 332 KB Output is correct
4 Correct 50 ms 320 KB Output is correct
5 Correct 56 ms 324 KB Output is correct
6 Correct 56 ms 324 KB Output is correct
7 Correct 50 ms 328 KB Output is correct
8 Correct 49 ms 312 KB Output is correct
9 Correct 49 ms 320 KB Output is correct
10 Correct 48 ms 320 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 208 KB Output is correct
2 Correct 6 ms 208 KB Output is correct
3 Correct 7 ms 312 KB Output is correct
4 Correct 6 ms 208 KB Output is correct
5 Correct 6 ms 324 KB Output is correct
6 Correct 6 ms 208 KB Output is correct
7 Correct 6 ms 208 KB Output is correct
8 Correct 6 ms 336 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 6 ms 208 KB Output is correct
11 Correct 5 ms 208 KB Output is correct
12 Correct 5 ms 208 KB Output is correct
13 Correct 5 ms 208 KB Output is correct
14 Correct 5 ms 208 KB Output is correct
15 Correct 6 ms 208 KB Output is correct
16 Correct 6 ms 328 KB Output is correct
17 Correct 6 ms 208 KB Output is correct
18 Correct 6 ms 208 KB Output is correct
19 Correct 6 ms 208 KB Output is correct
20 Correct 6 ms 208 KB Output is correct

Subtask #5
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 208 KB Output is correct
2 Correct 5 ms 208 KB Output is correct
3 Correct 4 ms 320 KB Output is correct
4 Correct 4 ms 356 KB Output is correct
5 Correct 3 ms 208 KB Output is correct
6 Correct 3 ms 336 KB Output is correct
7 Correct 4 ms 336 KB Output is correct
8 Correct 3 ms 328 KB Output is correct
9 Correct 3 ms 336 KB Output is correct
10 Correct 3 ms 208 KB Output is correct
11 Correct 3 ms 208 KB Output is correct
12 Correct 3 ms 336 KB Output is correct
13 Correct 3 ms 336 KB Output is correct
14 Correct 3 ms 336 KB Output is correct
15 Correct 3 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 4 ms 336 KB Output is correct
18 Correct 3 ms 336 KB Output is correct
19 Correct 3 ms 208 KB Output is correct
20 Correct 3 ms 336 KB Output is correct
21 Correct 3 ms 336 KB Output is correct
22 Correct 3 ms 336 KB Output is correct
23 Correct 3 ms 336 KB Output is correct
24 Correct 3 ms 208 KB Output is correct
25 Correct 3 ms 208 KB Output is correct
26 Correct 3 ms 336 KB Output is correct
27 Correct 3 ms 336 KB Output is correct
28 Correct 3 ms 208 KB Output is correct
29 Correct 3 ms 208 KB Output is correct
30 Correct 3 ms 336 KB Output is correct
31 Correct 3 ms 208 KB Output is correct
32 Correct 3 ms 336 KB Output is correct
33 Correct 3 ms 208 KB Output is correct
34 Correct 3 ms 336 KB Output is correct
35 Correct 4 ms 336 KB Output is correct
36 Correct 3 ms 336 KB Output is correct
37 Correct 3 ms 336 KB Output is correct
38 Correct 3 ms 336 KB Output is correct
39 Correct 3 ms 208 KB Output is correct
40 Correct 3 ms 336 KB Output is correct