Submission #911436

#	Time	Username	Problem	Language	Result	Execution time	Memory
911436		biank	Mechanical Doll (IOI18_doll)	C++14	47 / 100	92 ms	14536 KiB

doll

#include <bits/stdc++.h>
#include "doll.h"
using namespace std;
#define SIZE(x) (int)x.size()
#define forn(i,n) for(int i=0;i<int(n);i++)
#define forsn(i,s,n) for(int i=int(s);i<int(n);i++)
#define pb push_back
typedef vector<int> vi;

int n;

bool dfs(int u, vi &v, vi &s, int a) {
    if(u>=n) {
        if(v[u]) return false;
        v[u]=a;
        return true;
    }
    s[u]^=1;
    if(s[u]) return dfs(2*u,v,s,a);
    return dfs(2*u+1,v,s,a);
}

void create_circuit(int m, vi A) {
    vi c(m+1);
    c[0]=A[0];
    forsn(i,1,m+1) c[i]=-1;
    n=1;
    while(n<SIZE(A)) n*=2;
    int k=n-SIZE(A);
    vi a;
    forsn(i,1,SIZE(A)) a.pb(A[i]);
    a.pb(0);
    vi v(2*n,0), s(n,0);
    forn(i,n) v[i] = -i-1;
    forsn(i,n,n+k) v[i]= -1;
    forn(i,SIZE(a)) {
        bool flag=false;
        while(!flag) flag=dfs(0,v,s,a[i]);
    }
    vi state(2*n,0);
    vi x(n), y(n);
    forn(i,n) x[i]=v[2*i], y[i]=v[2*i+1];
    answer(c,x,y);
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 10 / 10
• Subtask 5: 9.0000000018 / 18
• Subtask 6: 28.0000000056 / 56