oj.uz

Submission #213466

# Submission time Handle Problem Language Result Execution time Memory
213466 2020-03-25T22:39:06 Z tri Broken Device (JOI17_broken_device) C++14
0 / 100
 2000 ms 9440 KB 
#include <bits/stdc++.h>
#include "Annalib.h"

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;

#define pb push_back
#define f first
#define s second

int N;

const int MAXN = 155;
const int MAXV = 1 << 20;

int data[MAXN];

mt19937 re(1377);
uniform_int_distribution<int> uniform_dist(0, MAXV);

int group[MAXN];
vi mem[3];

int broken[MAXN];

int pos[MAXV];

int output[MAXN];

void init() {
    for (int i = 0; i < N; i++) {
        data[i] = uniform_dist(re);
    }

    fill(group, group + N / 3, 0);
    fill(group + N / 3, group + 2 * N / 3, 1);
    fill(group + 2 * N / 3, group + N, 2);

    shuffle(group, group + N, re);

    for (int i = 0; i < 3; i++) {
        mem[i].clear();
    }

    for (int i = 0; i < N; i++) {
        if (!broken[i]) {
            mem[group[i]].pb(i);
        }
    }
}

// assert 20 bit frag
void calc(int group, int frag) {
    memset(pos, 0, sizeof(pos));

    vi &cMem = mem[group];
    assert(cMem.size() >= 20);

    if (cMem.size() >= 30) {
        cMem.erase(cMem.end() - (cMem.size() - 30), cMem.end());
    }

    int hSize = cMem.size() / 2;

//    cout << hSize << endl;

    for (int bSet = 0; bSet < (1 << hSize); bSet++) {
        int partial = 0;
        for (int j = 0; j < hSize; j++) {
            if (bSet & (1 << j)) {
                partial ^= data[cMem[j]];
            }
        }
        pos[partial] = bSet;
    }

    int rem = cMem.size() - hSize;

    for (int bSet = 0; bSet < (1 << rem); bSet++) {
        int partial = 0;
        for (int j = 0; j < rem; j++) {
            if (bSet & (1 << j)) {
                partial ^= data[cMem[hSize + j]];
            }
        }

        int desire = frag ^partial;
        if (pos[desire]) {
            int fSet = pos[desire];

            for (int j = 0; j < hSize; j++) {
                if (fSet & (1 << j)) {
                    output[cMem[j]] = 1;
                }
            }

            for (int j = 0; j < rem; j++) {
                if (bSet & (1 << j)) {
                    output[cMem[hSize + j]] = 1;
                }
            }

            return;
        }
    }

    assert(false);
}


void Anna(int iN, ll X, int K, int P[]) {
    N = iN;
    assert(N == 150);

    fill(broken, broken + N, 0);
    for (int i = 0; i < K; i++) {
        broken[P[i]] = true;
    }

//    cout << "read" << endl;

    init();

//    cout << "init" << endl;

    memset(output, 0, sizeof(output));

    for (int g = 0; g < 3; g++) {
        int frag = X & ((1 << 20) - 1);
        calc(g, frag);

        X >>= 20;
    }

    for (int i = 0; i < N; i++) {
        Set(i, output[i]);
    }

//    cout << "done" << endl;
//    ps(mem[0]);
}

#include <bits/stdc++.h>
#include "Brunolib.h"

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;

#define pb push_back
#define f first
#define s second

namespace debug {
    const int DEBUG = true;

    template<class T1, class T2>
    void pr(const pair<T1, T2> &x);

    template<class T, size_t SZ>
    void pr(const array<T, SZ> &x);

    template<class T>
    void pr(const vector<T> &x);

    template<class T>
    void pr(const set<T> &x);

    template<class T1, class T2>
    void pr(const map<T1, T2> &x);

    template<class T>
    void pr(const T &x) { if (DEBUG) cout << x; }

    template<class T, class... Ts>
    void pr(const T &first, const Ts &... rest) { pr(first), pr(rest...); }

    template<class T1, class T2>
    void pr(const pair<T1, T2> &x) { pr("{", x.f, ", ", x.s, "}"); }

    template<class T>
    void prIn(const T &x) {
        pr("{");
        bool fst = 1;
        for (auto &a : x) {
            pr(fst ? "" : ", ", a), fst = 0;
        }
        pr("}");
    }

    template<class T, size_t SZ>
    void pr(const array<T, SZ> &x) { prIn(x); }

    template<class T>
    void pr(const vector<T> &x) { prIn(x); }

    template<class T>
    void pr(const set<T> &x) { prIn(x); }

    template<class T1, class T2>
    void pr(const map<T1, T2> &x) { prIn(x); }

    void ps() { pr("\n"), cout << flush; }

    template<class Arg, class... Args>
    void ps(const Arg &first, const Args &... rest) {
        pr(first, " ");
        ps(rest...);
    }
}
using namespace debug;


namespace rdup {

    int N;

    const int MAXN = 155;
    const int MAXV = 1 << 20;

    int data[MAXN];

    mt19937 re(1377);
    uniform_int_distribution<int> uniform_dist(0, MAXV);

    int group[MAXN];
    vi mem[3];

    int broken[MAXN];

    void init() {
        for (int i = 0; i < N; i++) {
            data[i] = uniform_dist(re);
        }

        fill(group, group + N / 3, 0);
        fill(group + N / 3, group + 2 * N / 3, 1);
        fill(group + 2 * N / 3, group + N, 2);

        shuffle(group, group + N, re);

        for (int i = 0; i < 3; i++) {
            mem[i].clear();
        }

        for (int i = 0; i < N; i++) {
            if (!broken[i]) {
                mem[group[i]].pb(i);
            }
        }
    }
}

ll Bruno(int iN, int A[]) {
    rdup::N = iN;
    assert(rdup::N == 150);

    fill(rdup::broken, rdup::broken + rdup::N, 0);

    rdup::init();

//    ps(rdup::mem[0]);

    ll ans = 0;
    for (int group = 2; group >= 0; group--) {
        ans <<= 20;
        ll frag = 0;
        for (int i : rdup::mem[group]) {
            if (A[i]) {
                frag ^= rdup::data[i];
            }
        }
        ans |= frag;
    }
//    cout << ans << endl;
    return ans;
}

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Runtime error 1419 ms 9312 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Execution timed out 2093 ms 4984 KB Time limit exceeded
3 Execution timed out 2091 ms 4808 KB Time limit exceeded
4 Execution timed out 2087 ms 4988 KB Time limit exceeded
5 Runtime error 2023 ms 9440 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Execution timed out 2091 ms 4816 KB Time limit exceeded
7 Runtime error 526 ms 8960 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Execution timed out 2088 ms 4856 KB Time limit exceeded
9 Execution timed out 2086 ms 4992 KB Time limit exceeded
10 Execution timed out 2085 ms 4984 KB Time limit exceeded
11 Execution timed out 2096 ms 4804 KB Time limit exceeded
12 Runtime error 544 ms 9080 KB Execution killed with signal 11 (could be triggered by violating memory limits)
13 Execution timed out 2088 ms 4856 KB Time limit exceeded
14 Execution timed out 2078 ms 5000 KB Time limit exceeded
15 Runtime error 74 ms 9080 KB Execution killed with signal 11 (could be triggered by violating memory limits)
16 Runtime error 647 ms 8952 KB Execution killed with signal 11 (could be triggered by violating memory limits)
17 Execution timed out 2087 ms 4992 KB Time limit exceeded
18 Runtime error 366 ms 8952 KB Execution killed with signal 11 (could be triggered by violating memory limits)
19 Runtime error 1247 ms 9336 KB Execution killed with signal 11 (could be triggered by violating memory limits)
20 Runtime error 2041 ms 9416 KB Execution killed with signal 11 (could be triggered by violating memory limits)
21 Execution timed out 2080 ms 4936 KB Time limit exceeded
22 Execution timed out 2087 ms 4876 KB Time limit exceeded
23 Execution timed out 2088 ms 4856 KB Time limit exceeded
24 Runtime error 276 ms 9080 KB Execution killed with signal 11 (could be triggered by violating memory limits)
25 Execution timed out 2092 ms 5172 KB Time limit exceeded
26 Execution timed out 2075 ms 4984 KB Time limit exceeded
27 Execution timed out 2087 ms 4856 KB Time limit exceeded
28 Execution timed out 2090 ms 4880 KB Time limit exceeded
29 Execution timed out 2097 ms 4756 KB Time limit exceeded
30 Execution timed out 2089 ms 4860 KB Time limit exceeded
31 Execution timed out 2088 ms 4984 KB Time limit exceeded
32 Execution timed out 2056 ms 4988 KB Time limit exceeded
33 Runtime error 518 ms 9080 KB Execution killed with signal 11 (could be triggered by violating memory limits)
34 Execution timed out 2089 ms 4684 KB Time limit exceeded
35 Runtime error 935 ms 9248 KB Execution killed with signal 11 (could be triggered by violating memory limits)
36 Execution timed out 2090 ms 4984 KB Time limit exceeded
37 Execution timed out 2093 ms 4856 KB Time limit exceeded
38 Execution timed out 2087 ms 4984 KB Time limit exceeded
39 Runtime error 505 ms 8952 KB Execution killed with signal 11 (could be triggered by violating memory limits)
40 Runtime error 1611 ms 9336 KB Execution killed with signal 11 (could be triggered by violating memory limits)