oj.uz

Submission #744347

# Submission time Handle Problem Language Result Execution time Memory
744347 2023-05-18T13:11:34 Z becaido Koala Game (APIO17_koala) C++17
100 / 100
 59 ms 336 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,popcnt,sse4,abm")
#include <bits/stdc++.h>
using namespace std;

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

#ifdef WAIMAI
#define debug(HEHE...) cout << "[" << #HEHE << "] : ", dout(HEHE)
void dout() {cout << '\n';}
template<typename T, typename...U>
void dout(T t, U...u) {cout << t << (sizeof...(u) ? ", " : ""), dout(u...);}
#else
#define debug(...) 7122
#endif

#define ll long long
#define Waimai ios::sync_with_stdio(false), cin.tie(0)
#define FOR(x,a,b) for (int x = a, I = b; x <= I; x++)
#define pb emplace_back
#define F first
#define S second

#ifdef WAIMAI
void playRound(int *B, int *R);
#endif // WAIMAI

const int SIZE = 105;

int a[SIZE], b[SIZE];

int minValue(int N, int W) {
    a[0] = 1;
    fill(a + 1, a + N, 0);
    playRound(a, b);
    FOR (i, 0, N - 1) if (b[i] == 0) return i;
}

int maxValue(int N, int W) {
    vector<int> big(N);
    iota(big.begin(), big.end(), 0);
    while (big.size() > 1) {
        int w = W / big.size();
        fill(a, a + N, 0);
        for (int p : big) a[p] = w;
        playRound(a, b);
        vector<int> tmp;
        for (int p : big) if (b[p] > a[p]) tmp.pb(p);
        big = tmp;
    }
    if (big.size() == 0) return -1;
    return big[0];
}

int greaterValue(int N, int W, int p1, int p2) {
    if (W == 2 * N) {
        fill(a, a + N, 0);
        a[p1] = a[p2] = N;
        playRound(a, b);
        return b[p1] > a[p1] ? p1 : p2;
    }
    int l = 1, r = W / 8;
    while (l < r) {
        int mid = (l + r) / 2;
        fill(a, a + N, 0);
        a[p1] = a[p2] = mid;
        playRound(a, b);
        bool big1 = b[p1] > a[p1], big2 = b[p2] > a[p2];
        if (big1 && big2) l = mid + 1;
        else if (!big1 && !big2) r = mid - 1;
        else return big1 ? p1 : p2;
    }
}
int greaterValue(int N, int W) {
    return greaterValue(N, W, 0, 1);
}

void allValues(int N, int W, int *P) {
    vector<int> pos(N);
    iota(pos.begin(), pos.end(), 0);
    if (W == N * 2) {
        auto divide = [&](auto divide, vector<int> &pos)->void {
            if (pos.size() <= 1) return;
            int mid = pos.size() / 2;
            vector<int> pl, pr;
            FOR (i, 0, mid - 1) pl.pb(pos[i]);
            FOR (i, mid, pos.size() - 1) pr.pb(pos[i]);
            pos.clear();
            divide(divide, pl);
            divide(divide, pr);
            for (int il = 0, ir = 0; il < pl.size() || ir < pr.size();) {
                if (ir == pr.size() || (il < pl.size() && greaterValue(N, W, pl[il], pr[ir]) == pr[ir])) pos.pb(pl[il++]);
                else pos.pb(pr[ir++]);
            }
            pl.clear(), pr.clear();
        };
        divide(divide, pos);
        FOR (i, 0, N - 1) P[pos[i]] = i + 1;
    } else {
        auto divide = [&](auto divide, vector<int> &pos, int l, int r)->void {
            if (l == r) {
                P[pos[0]] = l;
                return;
            }
            int x = min((int) sqrt(2 * l), W / (r - l + 1));
            fill(a, a + N, 0);
            for (int p : pos) a[p] = x;
            playRound(a, b);
            vector<int> pl, pr;
            for (int p : pos) (b[p] > a[p] ? pr : pl).pb(p);
            divide(divide, pl, l, l + pl.size() - 1);
            divide(divide, pr, r - pr.size() + 1, r);
        };
        divide(divide, pos, 1, N);
    }
}

/*
4 1
100 100 1
in1
1 1
6 6 5 3 2 1 6 4
out1
3
in2
2 1
6 6 5 3 2 1 6 4
out2
4
in3
3 1
6 6
5 3 2 1 6 4
out3
0
in4
4 1
6 12 5 3 2 1 6 4
in5
4 1
6 6 5 3 2 1 6 4
*/

#ifdef WAIMAI
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];
    }
}

int maxq;
mt19937 rng(time(NULL));
static void runGame(int F) {
    int i;

    scanf("%d %d",&N,&W);
    //N = W = 100;

    //printf("random?\n");
    int x = 1;
    //scanf("%d", &x);
    if (x == 1) {
        printf("random array = ");
        iota(P, P + N, 1);
        shuffle(P, P + N, rng);
        for (int i = 0; i < N; i++) printf("%d ", P[i]);
        printf("\n");
    } else {
        for (i=0;i<N;++i) {
            scanf("%d",&P[i]);
        }
    }

    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);
    maxq = max(maxq, numQueries);
}

static void grader() {
    int i;

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

    for (i=0;i<G;i++) {
        runGame(F);
    }
    printf("maxQ = %d\n", maxq);
}
#endif // WAIMAI

Compilation message

koala.cpp: In lambda function:
koala.cpp:93:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |             for (int il = 0, ir = 0; il < pl.size() || ir < pr.size();) {
      |                                      ~~~^~~~~~~~~~~
koala.cpp:93:59: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |             for (int il = 0, ir = 0; il < pl.size() || ir < pr.size();) {
      |                                                        ~~~^~~~~~~~~~~
koala.cpp: In instantiation of 'allValues(int, int, int*)::<lambda(auto:23, std::vector<int>&)> [with auto:23 = allValues(int, int, int*)::<lambda(auto:23, std::vector<int>&)>]':
koala.cpp:99:27:   required from here
koala.cpp:93:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |             for (int il = 0, ir = 0; il < pl.size() || ir < pr.size();) {
      |                                      ~~~^~~~~~~~~~~
koala.cpp:93:59: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |             for (int il = 0, ir = 0; il < pl.size() || ir < pr.size();) {
      |                                                        ~~~^~~~~~~~~~~
koala.cpp:94:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |                 if (ir == pr.size() || (il < pl.size() && greaterValue(N, W, pl[il], pr[ir]) == pr[ir])) pos.pb(pl[il++]);
      |                     ~~~^~~~~~~~~~~~
koala.cpp:94:44: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |                 if (ir == pr.size() || (il < pl.size() && greaterValue(N, W, pl[il], pr[ir]) == pr[ir])) pos.pb(pl[il++]);
      |                                         ~~~^~~~~~~~~~~
koala.cpp: In function 'int minValue(int, int)':
koala.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type]
   39 | }
      | ^
koala.cpp: In function 'int greaterValue(int, int, int, int)':
koala.cpp:75:1: warning: control reaches end of non-void function [-Wreturn-type]
   75 | }
      | ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 208 KB Output is correct
2 Correct 4 ms 208 KB Output is correct
3 Correct 4 ms 208 KB Output is correct
4 Correct 6 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 208 KB Output is correct
2 Correct 15 ms 324 KB Output is correct
3 Correct 12 ms 316 KB Output is correct
4 Correct 11 ms 208 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 324 KB Output is correct
2 Correct 53 ms 328 KB Output is correct
3 Correct 43 ms 328 KB Output is correct
4 Correct 40 ms 336 KB Output is correct
5 Correct 53 ms 324 KB Output is correct
6 Correct 46 ms 316 KB Output is correct
7 Correct 43 ms 336 KB Output is correct
8 Correct 59 ms 320 KB Output is correct
9 Correct 47 ms 328 KB Output is correct
10 Correct 47 ms 324 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 208 KB Output is correct
2 Correct 30 ms 208 KB Output is correct
3 Correct 30 ms 320 KB Output is correct
4 Correct 29 ms 208 KB Output is correct
5 Correct 27 ms 208 KB Output is correct
6 Correct 28 ms 336 KB Output is correct
7 Correct 30 ms 300 KB Output is correct
8 Correct 31 ms 208 KB Output is correct
9 Correct 36 ms 292 KB Output is correct
10 Correct 27 ms 300 KB Output is correct
11 Correct 28 ms 208 KB Output is correct
12 Correct 24 ms 320 KB Output is correct
13 Correct 31 ms 208 KB Output is correct
14 Correct 26 ms 208 KB Output is correct
15 Correct 31 ms 296 KB Output is correct
16 Correct 25 ms 312 KB Output is correct
17 Correct 24 ms 208 KB Output is correct
18 Correct 25 ms 316 KB Output is correct
19 Correct 26 ms 208 KB Output is correct
20 Correct 25 ms 320 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 3 ms 208 KB Output is correct
3 Correct 3 ms 208 KB Output is correct
4 Correct 3 ms 208 KB Output is correct
5 Correct 4 ms 208 KB Output is correct
6 Correct 3 ms 208 KB Output is correct
7 Correct 3 ms 208 KB Output is correct
8 Correct 3 ms 208 KB Output is correct
9 Correct 3 ms 208 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 308 KB Output is correct
13 Correct 3 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 3 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 3 ms 320 KB Output is correct
18 Correct 3 ms 208 KB Output is correct
19 Correct 4 ms 208 KB Output is correct
20 Correct 3 ms 336 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 4 ms 208 KB Output is correct
23 Correct 3 ms 208 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 324 KB Output is correct
27 Correct 3 ms 208 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 208 KB Output is correct
31 Correct 3 ms 208 KB Output is correct
32 Correct 3 ms 208 KB Output is correct
33 Correct 3 ms 208 KB Output is correct
34 Correct 4 ms 208 KB Output is correct
35 Correct 5 ms 208 KB Output is correct
36 Correct 3 ms 312 KB Output is correct
37 Correct 3 ms 208 KB Output is correct
38 Correct 3 ms 316 KB Output is correct
39 Correct 3 ms 208 KB Output is correct
40 Correct 3 ms 320 KB Output is correct