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답안 #744324

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
744324 2023-05-18T12:21:42 Z becaido 코알라 (APIO17_koala) C++17
76 / 100
 54 ms 340 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);
    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;
}

/*
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:92:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   92 |         for (int il = 0, ir = 0; il < pl.size() || ir < pr.size();) {
      |                                  ~~~^~~~~~~~~~~
koala.cpp:92:55: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   92 |         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:98:23:   required from here
koala.cpp:92:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   92 |         for (int il = 0, ir = 0; il < pl.size() || ir < pr.size();) {
      |                                  ~~~^~~~~~~~~~~
koala.cpp:92:55: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   92 |         for (int il = 0, ir = 0; il < pl.size() || ir < pr.size();) {
      |                                                    ~~~^~~~~~~~~~~
koala.cpp:93:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |             if (ir == pr.size() || (il < pl.size() && greaterValue(N, W, pl[il], pr[ir]) == pr[ir])) pos.pb(pl[il++]);
      |                 ~~~^~~~~~~~~~~~
koala.cpp:93:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   93 |             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

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 208 KB Output is correct
2 Correct 6 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

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 300 KB Output is correct
2 Correct 12 ms 324 KB Output is correct
3 Correct 14 ms 320 KB Output is correct
4 Correct 13 ms 316 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 48 ms 336 KB Output is correct
2 Correct 54 ms 336 KB Output is correct
3 Correct 49 ms 328 KB Output is correct
4 Correct 47 ms 328 KB Output is correct
5 Correct 51 ms 324 KB Output is correct
6 Correct 48 ms 328 KB Output is correct
7 Correct 49 ms 332 KB Output is correct
8 Correct 49 ms 340 KB Output is correct
9 Correct 49 ms 332 KB Output is correct
10 Correct 46 ms 328 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 320 KB Output is correct
2 Correct 31 ms 208 KB Output is correct
3 Correct 35 ms 208 KB Output is correct
4 Correct 36 ms 208 KB Output is correct
5 Correct 28 ms 208 KB Output is correct
6 Correct 31 ms 296 KB Output is correct
7 Correct 28 ms 208 KB Output is correct
8 Correct 30 ms 208 KB Output is correct
9 Correct 29 ms 296 KB Output is correct
10 Correct 33 ms 296 KB Output is correct
11 Correct 28 ms 208 KB Output is correct
12 Correct 18 ms 300 KB Output is correct
13 Correct 29 ms 208 KB Output is correct
14 Correct 25 ms 208 KB Output is correct
15 Correct 25 ms 316 KB Output is correct
16 Correct 24 ms 208 KB Output is correct
17 Correct 25 ms 316 KB Output is correct
18 Correct 26 ms 208 KB Output is correct
19 Correct 26 ms 208 KB Output is correct
20 Correct 25 ms 312 KB Output is correct

Subtask #5
29.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Partially correct 13 ms 316 KB Output is partially correct
2 Partially correct 23 ms 208 KB Output is partially correct
3 Partially correct 20 ms 312 KB Output is partially correct
4 Partially correct 20 ms 320 KB Output is partially correct
5 Partially correct 25 ms 312 KB Output is partially correct
6 Partially correct 20 ms 208 KB Output is partially correct
7 Partially correct 19 ms 208 KB Output is partially correct
8 Partially correct 20 ms 312 KB Output is partially correct
9 Partially correct 20 ms 316 KB Output is partially correct
10 Partially correct 20 ms 208 KB Output is partially correct
11 Partially correct 19 ms 320 KB Output is partially correct
12 Partially correct 13 ms 312 KB Output is partially correct
13 Partially correct 19 ms 316 KB Output is partially correct
14 Partially correct 20 ms 208 KB Output is partially correct
15 Partially correct 20 ms 208 KB Output is partially correct
16 Partially correct 21 ms 208 KB Output is partially correct
17 Partially correct 19 ms 208 KB Output is partially correct
18 Partially correct 21 ms 316 KB Output is partially correct
19 Partially correct 21 ms 208 KB Output is partially correct
20 Partially correct 19 ms 208 KB Output is partially correct
21 Partially correct 21 ms 320 KB Output is partially correct
22 Partially correct 20 ms 208 KB Output is partially correct
23 Partially correct 19 ms 336 KB Output is partially correct
24 Partially correct 20 ms 220 KB Output is partially correct
25 Partially correct 25 ms 208 KB Output is partially correct
26 Partially correct 19 ms 316 KB Output is partially correct
27 Partially correct 20 ms 316 KB Output is partially correct
28 Partially correct 20 ms 316 KB Output is partially correct
29 Partially correct 19 ms 320 KB Output is partially correct
30 Partially correct 20 ms 316 KB Output is partially correct
31 Partially correct 19 ms 208 KB Output is partially correct
32 Partially correct 20 ms 316 KB Output is partially correct
33 Partially correct 20 ms 320 KB Output is partially correct
34 Partially correct 18 ms 208 KB Output is partially correct
35 Partially correct 20 ms 312 KB Output is partially correct
36 Partially correct 19 ms 208 KB Output is partially correct
37 Partially correct 23 ms 208 KB Output is partially correct
38 Partially correct 20 ms 320 KB Output is partially correct
39 Partially correct 20 ms 316 KB Output is partially correct
40 Partially correct 21 ms 208 KB Output is partially correct