oj.uz

Submission #834456

# Submission time Handle Problem Language Result Execution time Memory
834456 2023-08-22T14:33:00 Z Ronin13 Swap (BOI16_swap) C++17
68 / 100
 1000 ms 237536 KB 
#include <bits/stdc++.h>
#define ll long long  
#define ull unsigned ll
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
using namespace std;

const int nmax = 200001;

 vector <vector <int> > ans[200001];
map <pii, int> mp;
int cur[nmax];
int a[nmax];

//vector <vector <int> > g(nmax);
vector <int> vv[nmax];
int n;

void bfs(int s){
    if(2 * s <= n && 2 * s + 1 <= n){
        queue <pii> q;
        q.push({2 * s, 0});
        q.push({2 * s + 1, 1});
        while(!q.empty()){
            int v = q.front().f;
            vv[s].pb(q.front().s);
            q.pop();
            if(2 * v <= n) q.push({2 * v, vv[s].back()});
            if(2 * v + 1 <= n) q.push({2 * v + 1, vv[s].back()});
        }

    }
}

vector <int> A, B;
vector <int> nx, ny;

int opt(int v, int x){
    if(mp[{v, x}] == 0) mp[{v, x}] = ++cur[v], ans[v].pb({});
    else return mp[{v, x}];
    int c = mp[{v, x}];
    if(2 * v > n){
        ans[v][c] = {x};
        return c;
    }
    if(2 * v + 1 > n){
        if(a[2 * v] > x)
            ans[v][c]= {x, a[2 * v]};
        else ans[v][c] = {a[2 * v], x};
        return c;
    }
    vector <int> all = {x, a[2 * v], a[2 *v + 1]};
    sort(all.begin(), all.end());
    if(all[0] == x){
        int xx = opt(2 * v, a[2 * v]);
        int yy =  opt(2 * v+  1, a[ 2* v + 1]);
        A = ans[2 * v][xx];
        B = ans[2 * v + 1][yy];
        ans[v][c].pb(x);
        int inda, indb;
        inda = indb = 0;
        for(int to : vv[v]){
            if(!to) ans[v][c].pb(A[inda]), inda++;
            else ans[v][c].pb(B[indb]), indb++;
        }
        return c;
    }
    if(all[0] == a[2 * v]){
        int xx = opt(2 * v, x);
        int yy = opt(2 * v + 1, a[2 * v + 1]);
        A = ans[2 * v][xx];
        B = ans[2 * v + 1][yy];
        ans[v][c].pb(a[2 * v]);
        int inda, indb;
        inda = indb = 0;
        for(int to : vv[v]){
            if(!to) ans[v][c].pb(A[inda]), inda++;
            else ans[v][c].pb(B[indb]), indb++;
        }
        return c;
    }
    int x1 = opt(2 * v, all[1]), y1 = opt(2 * v+ 1, all[2]);
    int x2 = opt(2 * v, all[2]), y2 = opt(2 * v+ 1, all[1]);
  //  cout << x1 << ' ' << y1 << ' ' <<  x2 << ' ' << y2 << "\n";
     A = ans[2 * v][x1], B = ans[2 *v + 1][y1];
    nx = {all[0]}, ny = {all[0]};
    int inda = 0, indb = 0;
    for(int to : vv[v]){
        if(!to) nx.pb(A[inda]), inda++;
        else nx.pb(B[indb]), indb++;
    }
    A = ans[2 * v][x2];
    B = ans[2 * v + 1][y2];
    inda = 0, indb = 0;
    for(int to : vv[v]){
        if(!to) ny.pb(A[inda]), inda++;
        else ny.pb(B[indb]), indb++;
    }
    ans[v][c] = min(nx, ny);
    return c;
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
    }
    for(int i = 1; i <= n; i++){
        bfs(i);
        ans[i].pb({});
    }
    int x = opt(1, a[1]);
    //cout << x << ' ';
    for(int to : ans[1][x]) 
        cout << to << ' ';
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9616 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9684 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9616 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9684 KB Output is correct
6 Correct 4 ms 9684 KB Output is correct
7 Correct 4 ms 9684 KB Output is correct
8 Correct 4 ms 9684 KB Output is correct
9 Correct 5 ms 9748 KB Output is correct
10 Correct 4 ms 9684 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9616 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9684 KB Output is correct
6 Correct 4 ms 9684 KB Output is correct
7 Correct 4 ms 9684 KB Output is correct
8 Correct 4 ms 9684 KB Output is correct
9 Correct 5 ms 9748 KB Output is correct
10 Correct 4 ms 9684 KB Output is correct
11 Correct 5 ms 10068 KB Output is correct
12 Correct 6 ms 10196 KB Output is correct
13 Correct 6 ms 10068 KB Output is correct
14 Correct 11 ms 11008 KB Output is correct
15 Correct 10 ms 10964 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9616 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9684 KB Output is correct
6 Correct 4 ms 9684 KB Output is correct
7 Correct 4 ms 9684 KB Output is correct
8 Correct 4 ms 9684 KB Output is correct
9 Correct 5 ms 9748 KB Output is correct
10 Correct 4 ms 9684 KB Output is correct
11 Correct 5 ms 10068 KB Output is correct
12 Correct 6 ms 10196 KB Output is correct
13 Correct 6 ms 10068 KB Output is correct
14 Correct 11 ms 11008 KB Output is correct
15 Correct 10 ms 10964 KB Output is correct
16 Correct 126 ms 35584 KB Output is correct
17 Correct 110 ms 35284 KB Output is correct
18 Correct 112 ms 35848 KB Output is correct
19 Correct 748 ms 124152 KB Output is correct
20 Correct 723 ms 122904 KB Output is correct

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9616 KB Output is correct
4 Correct 4 ms 9684 KB Output is correct
5 Correct 4 ms 9684 KB Output is correct
6 Correct 4 ms 9684 KB Output is correct
7 Correct 4 ms 9684 KB Output is correct
8 Correct 4 ms 9684 KB Output is correct
9 Correct 5 ms 9748 KB Output is correct
10 Correct 4 ms 9684 KB Output is correct
11 Correct 5 ms 10068 KB Output is correct
12 Correct 6 ms 10196 KB Output is correct
13 Correct 6 ms 10068 KB Output is correct
14 Correct 11 ms 11008 KB Output is correct
15 Correct 10 ms 10964 KB Output is correct
16 Correct 126 ms 35584 KB Output is correct
17 Correct 110 ms 35284 KB Output is correct
18 Correct 112 ms 35848 KB Output is correct
19 Correct 748 ms 124152 KB Output is correct
20 Correct 723 ms 122904 KB Output is correct
21 Correct 537 ms 119428 KB Output is correct
22 Correct 537 ms 121096 KB Output is correct
23 Correct 543 ms 121852 KB Output is correct
24 Execution timed out 1039 ms 237536 KB Time limit exceeded
25 Halted 0 ms 0 KB -