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Submission #534702

# Submission time Handle Problem Language Result Execution time Memory
534702 2022-03-08T14:54:20 Z tranxuanbach The Collection Game (BOI21_swaps) C++17
100 / 100
 11 ms 672 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
 
#define endl '\n'
#define fi first
#define se second
#define For(i, l, r) for (auto i = (l); i < (r); i++)
#define ForE(i, l, r) for (auto i = (l); i <= (r); i++)
#define FordE(i, l, r) for (auto i = (l); i >= (r); i--)
#define Fora(v, a) for (auto v: (a))
#define bend(a) (a).begin(), (a).end()
#define isz(a) ((signed)(a).size())
 
using ll = long long;
using ld = long double;
using pii = pair <int, int>;
using vi = vector <int>;
using vpii = vector <pii>;
using vvi = vector <vi>;
 
#include "swaps.h"
 
const int N = 5e2 + 5;
 
int n;
vi vidx;
 
bool built = 0;
 
vpii vschedule; vector <bool> vstartschedule; vi vansschedule; int ctrschedule;
 
void compare(int i, int j, bool dir){
    if (!built){
        vschedule.emplace_back(i, j);
    }
    else{
        if (vstartschedule[ctrschedule]){
            schedule(vidx[vschedule[ctrschedule].fi], vidx[vschedule[ctrschedule].se]);
            int tctrschedule = ctrschedule + 1;
            while (tctrschedule < isz(vschedule) and !vstartschedule[tctrschedule]){
                schedule(vidx[vschedule[tctrschedule].fi], vidx[vschedule[tctrschedule].se]);
                tctrschedule++;
            }
            vi cac = visit();
            For(k, 0, isz(cac)){
                vansschedule[ctrschedule + k] = cac[k];
            }
        }
        if (dir == vansschedule[ctrschedule++]){
            swap(vidx[i], vidx[j]);
        }
    }
}

vector <tuple <int, int, bool, int>> vbitoniclayer[N];
 
void bitonicmerge(int l, int n, bool dir, int depth){
    if (n == 1){
        return;
    }
    int m = 1;
    while (m * 2 < n){
        m *= 2;
    }
    For(i, l, l + n - m){
        compare(i, i + m, dir);
    }
    vbitoniclayer[depth + 1].emplace_back(l, m, dir, depth + 1);
    vbitoniclayer[depth + 1].emplace_back(l + m, n - m, dir, depth + 1);
    // bitonicmerge(l, m, dir);
    // bitonicmerge(l + m, n - m, dir);
}
 
void bitonicsort(int l, int n, bool dir, int depth){
    if (n == 1){
        return;
    }
    vbitoniclayer[depth].emplace_back(l, n, dir, depth);
    int m = n / 2;
    bitonicsort(l, m, !dir, depth + 1);
    bitonicsort(l + m, n - m, dir, depth + 1);
    // bitonicmerge(l, n, dir);
}

void reorder_merge(){
    FordE(i, n, 0){
        vbitoniclayer[i].clear();
    }
    bitonicsort(0, n, 0, 0);
    while (1){
        bool isempty = 1;
        FordE(i, 20, 0){
            if (vbitoniclayer[i].empty()){
                continue;
            }
            Fora(&arg, vbitoniclayer[i]){
                bitonicmerge(get<0>(arg), get<1>(arg), get<2>(arg), get<3>(arg));
            }
            vbitoniclayer[i].clear();
            isempty = 0;
            break;
        }
        if (isempty){
            break;
        }
    }
}
 
void calschedule(){
    vstartschedule.assign(isz(vschedule), 0);
    vansschedule.assign(isz(vschedule), 0);
    int i = 0;
    while (i < isz(vschedule)){
        vstartschedule[i] = 1;
        set <int> stt;
        while (i < isz(vschedule)){
            if (stt.find(vschedule[i].fi) != stt.end() or stt.find(vschedule[i].se) != stt.end()){
                break;
            }
            stt.insert(vschedule[i].fi); stt.insert(vschedule[i].se);
            i++;
        }
    }
}
 
void solve(int _n, int v){
    n = _n;
    vidx.assign(n, 0);
    For(i, 0, n){
        vidx[i] = i + 1;
    }
    vschedule.clear(); vansschedule.clear(); ctrschedule = 0;
 
    built = 0;
    reorder_merge();
    calschedule();
    built = 1;
    reorder_merge();
    answer(vidx);
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 384 KB Correct
3 Correct 5 ms 328 KB Correct
4 Correct 9 ms 556 KB Correct
5 Correct 9 ms 548 KB Correct
6 Correct 7 ms 552 KB Correct
7 Correct 8 ms 548 KB Correct
8 Correct 7 ms 552 KB Correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 3 ms 328 KB Correct
4 Correct 6 ms 548 KB Correct
5 Correct 8 ms 672 KB Correct
6 Correct 8 ms 556 KB Correct
7 Correct 9 ms 548 KB Correct
8 Correct 8 ms 608 KB Correct
9 Correct 8 ms 548 KB Correct
10 Correct 8 ms 556 KB Correct
11 Correct 8 ms 556 KB Correct
12 Correct 9 ms 552 KB Correct
13 Correct 7 ms 552 KB Correct

Subtask #3
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct

Subtask #4
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 1 ms 200 KB Correct
4 Correct 2 ms 328 KB Correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 4 ms 408 KB Correct
4 Correct 7 ms 548 KB Correct

Subtask #6
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 4 ms 408 KB Correct
4 Correct 7 ms 548 KB Correct
5 Correct 1 ms 200 KB Correct
6 Correct 2 ms 328 KB Correct
7 Correct 3 ms 412 KB Correct
8 Correct 9 ms 552 KB Correct
9 Correct 8 ms 548 KB Correct
10 Correct 10 ms 548 KB Correct
11 Correct 7 ms 548 KB Correct
12 Correct 10 ms 552 KB Correct
13 Correct 1 ms 200 KB Correct
14 Correct 2 ms 328 KB Correct
15 Correct 3 ms 328 KB Correct
16 Correct 8 ms 548 KB Correct

Subtask #7
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 3 ms 408 KB Correct
4 Correct 7 ms 552 KB Correct
5 Correct 8 ms 548 KB Correct

Subtask #8
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 3 ms 408 KB Correct
4 Correct 7 ms 552 KB Correct
5 Correct 8 ms 548 KB Correct
6 Correct 1 ms 200 KB Correct
7 Correct 2 ms 328 KB Correct
8 Correct 3 ms 328 KB Correct
9 Correct 7 ms 552 KB Correct
10 Correct 7 ms 548 KB Correct
11 Correct 10 ms 552 KB Correct
12 Correct 7 ms 552 KB Correct
13 Correct 7 ms 552 KB Correct
14 Correct 7 ms 552 KB Correct
15 Correct 7 ms 544 KB Correct
16 Correct 8 ms 668 KB Correct
17 Correct 11 ms 552 KB Correct
18 Correct 8 ms 548 KB Correct
19 Correct 1 ms 200 KB Correct
20 Correct 2 ms 328 KB Correct
21 Correct 3 ms 328 KB Correct
22 Correct 7 ms 552 KB Correct
23 Correct 8 ms 528 KB Correct

Subtask #9
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 4 ms 328 KB Correct
4 Correct 7 ms 560 KB Correct
5 Correct 6 ms 552 KB Correct
6 Correct 9 ms 532 KB Correct

Subtask #10
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 4 ms 328 KB Correct
4 Correct 7 ms 560 KB Correct
5 Correct 6 ms 552 KB Correct
6 Correct 9 ms 532 KB Correct
7 Correct 1 ms 292 KB Correct
8 Correct 2 ms 328 KB Correct
9 Correct 3 ms 408 KB Correct
10 Correct 8 ms 548 KB Correct
11 Correct 8 ms 548 KB Correct
12 Correct 7 ms 548 KB Correct
13 Correct 7 ms 552 KB Correct
14 Correct 7 ms 556 KB Correct
15 Correct 7 ms 552 KB Correct
16 Correct 9 ms 548 KB Correct
17 Correct 7 ms 548 KB Correct
18 Correct 11 ms 548 KB Correct
19 Correct 7 ms 536 KB Correct
20 Correct 1 ms 200 KB Correct
21 Correct 2 ms 328 KB Correct
22 Correct 3 ms 328 KB Correct
23 Correct 7 ms 548 KB Correct
24 Correct 7 ms 536 KB Correct
25 Correct 8 ms 528 KB Correct

Subtask #11
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 4 ms 416 KB Correct
4 Correct 9 ms 548 KB Correct
5 Correct 10 ms 528 KB Correct
6 Correct 8 ms 524 KB Correct
7 Correct 8 ms 524 KB Correct

Subtask #12
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 2 ms 328 KB Correct
3 Correct 4 ms 416 KB Correct
4 Correct 9 ms 548 KB Correct
5 Correct 10 ms 528 KB Correct
6 Correct 8 ms 524 KB Correct
7 Correct 8 ms 524 KB Correct
8 Correct 1 ms 200 KB Correct
9 Correct 1 ms 200 KB Correct
10 Correct 2 ms 328 KB Correct
11 Correct 4 ms 280 KB Correct
12 Correct 8 ms 544 KB Correct
13 Correct 8 ms 556 KB Correct
14 Correct 8 ms 552 KB Correct
15 Correct 10 ms 552 KB Correct
16 Correct 8 ms 556 KB Correct
17 Correct 10 ms 548 KB Correct
18 Correct 7 ms 552 KB Correct
19 Correct 11 ms 556 KB Correct
20 Correct 9 ms 560 KB Correct
21 Correct 9 ms 548 KB Correct
22 Correct 1 ms 200 KB Correct
23 Correct 2 ms 328 KB Correct
24 Correct 3 ms 328 KB Correct
25 Correct 7 ms 548 KB Correct
26 Correct 7 ms 548 KB Correct
27 Correct 7 ms 532 KB Correct
28 Correct 8 ms 524 KB Correct