Submission #554494

#	Time	Username	Problem	Language	Result	Execution time	Memory
554494		kevinxiehk	Mechanical Doll (IOI18_doll)	C++17	10 / 100	240 ms	29488 KiB

doll

#include "doll.h"
#include<bits/stdc++.h>
#define mp make_pair
#define pb emplace_back
#define fi first
#define se second
using namespace std;
int cnt = -1;
pair<int, int> lr[400005];
map<int, int> hv;
int need = 0;
int arr[400005];
vector<int> add;
int dfs(int lay, int tc, int lef) {
    if(lay == need) {
        add.pb(tc + 1);
        return tc + 1;
    }
    int k = (1 << (need - lay - 1));
    int thisid = cnt; cnt--;
    if(lef > k) {
        lr[-thisid].fi = dfs(lay + 1, tc, k);
        lr[-thisid].se = dfs(lay + 1, tc + (1 << lay), lef - k);
    }
    else {
        lr[-thisid] = mp(-1, dfs(lay + 1, tc + (1 << lay), lef - k));
    }
    return thisid;
}
void create_circuit(int m, vector<int> a) {
    int n = a.size();
    vector<int> c(m + 1);
    c[0] = a[0];
    a.pb(0);
    vector<int> aa;
    for(int i = 1; i <= n; i++) aa.pb(a[i]);
    for(int i = 1; i <= m; ++i) {
        c[i] = -1;
    }
    vector<int> l, r;
    if(n == 1) {
        l.pb(-1);
        r.pb(0);
        answer(c, l, r);
        return;
    }
    while((1 << need) < n) need++;
    dfs(0, 0, n);
    for(int i = 1; i < -cnt; i++) hv[-i] = -i;
    sort(add.begin(), add.end());
    for(int i = 0; i < n; i++) hv[add[i]] = aa[i];
    // for(int i = 0; i < n; i++) hv[add[i]] = add[i];
    for(int i = 1; i < -cnt; i++) {
        l.pb(hv[lr[i].fi]);
        r.pb(hv[lr[i].se]);
        // cerr << -i << ' ' << hv[lr[i].fi] << ' ' << hv[lr[i].se] << '\n';
    }
    answer(c, l, r);
    return;
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 10 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56