Submission #101678

#	Time	Username	Problem	Language	Result	Execution time	Memory
101678		lolicon	Mechanical Doll (IOI18_doll)	C++14	2 / 100	91 ms	9152 KiB

doll

#include "doll.h"
#include<algorithm>

using namespace std;


int magic(vector<int> &X,vector<int> &Y,vector<int> &G,int L,int R){
    if(L == R){
        return G[L];
    }
    int mid = (L+R)>>1;

    X.push_back(magic(X,Y,G,L,mid));
    Y.push_back(magic(X,Y,G,mid+1,R));
    return -X.size();
}


void create_circuit(int M, std::vector<int> A) {
    int N = A.size();
    vector<int> C(M + 1);
    vector<int> X, Y;
    vector<int> G[M+1];
    vector<int> next(M+1), cnt(M+1,0);
    for(int i=0;i<N-1;i++){
        cnt[A[i]]++;
        G[A[i]].push_back(A[i+1]);
    }
    C[0] = A[0];
    for(int i=0;i<N-1;i++){
        if(cnt[A[i]] == 1){
            C[A[i]] = A[i+1];
        } else {
            C[A[i]] = magic(X, Y, G[A[i]], 0, G[A[i]].size()-1);
        }
    }
    C[A[N-1]] = 0;
    answer(C, X, Y);
}

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