Submission #293782

#	Time	Username	Problem	Language	Result	Execution time	Memory
293782		Atill83	Mechanical Doll (IOI18_doll)	C++14	37 / 100	164 ms	24444 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = (int)5e5 + 5;
int cur = -1;
vector<int> X, Y, C;
vector<int> cl[MAXN];

int do_it(vector<int> & sm){
    int ad = cur--;
    if(sm.size() == 1 || __builtin_popcount(sm.size()) != 1){
        reverse(sm.begin(), sm.end());
        while(sm.size() == 1 || __builtin_popcount(sm.size()) != 1){
            sm.push_back(ad);
        }
        reverse(sm.begin(), sm.end());
    }
    int deg = 0;

    for(int i = 1; i < sm.size(); i++){
        deg += (sm[i] != sm[i - 1]);
    }
    if(!deg){
        cur++;
        return sm[0];
    }
    if(sm.size() == 2){
        X[-ad - 1] = sm[0];
        Y[-ad - 1] = sm[1];
        return ad;
    }
    vector<int> ot1, ot2;
    for(int i = 0; i < sm.size(); i+=2)
        ot1.push_back(sm[i]);
    for(int i = 1; i < sm.size(); i+=2)
        ot2.push_back(sm[i]);
    int a = do_it(ot1), b = do_it(ot2);
    X[-ad - 1] = a;
    Y[-ad - 1] = b;
    return ad;
}


void create_circuit(int M, vector<int> A){
    A.push_back(0);
    int N = A.size();
    X.resize(MAXN, 0);
    Y.resize(MAXN, 0);
    C.resize(M + 1, 0);
    C[0] = do_it(A);
    for(int i = 1; i <= M; i++) C[i] = C[0];
    X.resize(-cur - 1);
    Y.resize(-cur - 1);
    /*for(int i = 0; i < X.size(); i++){
        cout<<X[i]<<
    }*/

    answer(C, X, Y);
}

Compilation message (stderr)

doll.cpp: In function 'int do_it(std::vector<int>&)':
doll.cpp:20:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |     for(int i = 1; i < sm.size(); i++){
      |                    ~~^~~~~~~~~~~
doll.cpp:33:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for(int i = 0; i < sm.size(); i+=2)
      |                    ~~^~~~~~~~~~~
doll.cpp:35:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for(int i = 1; i < sm.size(); i+=2)
      |                    ~~^~~~~~~~~~~
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:46:9: warning: unused variable 'N' [-Wunused-variable]
   46 |     int N = A.size();
      |         ^

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 9 / 18
• Subtask 6: 28 / 56