Submission #312338

#	Time	Username	Problem	Language	Result	Execution time	Memory
312338		kylych03	Mechanical Doll (IOI18_doll)	C++14	Compilation error	0 ms	0 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
int vis[200002];
vector <int> x,y;
vector <int> vec[200002];
int cnt = 1;
void rec(vector <int > v){
    vector <int> v1, v2;
    if(v.size()==0)
        return ;
    if(v.size()==1){
        x.push_back(-cnt);
        y.push_back(v[0]);
        cnt++;
        return ;
    }
    if(v.size()==2){
        x.push_back(v[0]);
        y.push_back(v[1]);
        cnt++;
        return ;
    }

    if(v.size()%2==1){
        v.insert(v.begin()  , -cnt);
    }
    for(int i = 0; i < v.size(); i++){
        if(i%2==0)
            v1.push_back(v[i]);
        else
            v2.push_back(v[i]);
    }
    int p = cnt;
    cnt++;
    x.push_back(-cnt);
    y.push_back(-cnt);
    rec(v1);
    y[p-1]=-cnt;
    rec(v2);

}
void create_circuit(int M, std::vector<int> A) {
    std::vector<int> C(M + 1);
    vector <int> X, Y;
    for(int i = 0; i<M+1; i++){
        C[i]=0;
    }
    C[0]=A[0];
    A.push_back(0);
    for(int i = 0 ; i < N; i++){
        vec[A[i]].push_back(A[i+1]);
    }
    for(int i = 1 ; i <=M ;i++){
        if(vec[i].size()>0){
            C[i] = -cnt;
            int pw = 1;
            while(pw < vec[i].size()){
                pw = pw * 2;
            }
            int len = vec[i].size();
            while(len < pw){
                len++;
                vec[i].insert(vec[i].begin(), C[i]);
            }
            rec( vec[i]);
        }

    }

   /*for(int i = 0; i <C.size(); i++)
        cout << C[i]<<" ";
    cout << endl;
    for(int i = 0; i <x.size(); i++)
        cout << x[i]<<" "<<y[i]<<endl;
    cout << endl;
*/

  answer(C, x, y);
}

Compilation message (stderr)

doll.cpp: In function 'void rec(std::vector<int>)':
doll.cpp:29:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for(int i = 0; i < v.size(); i++){
      |                    ~~^~~~~~~~~~
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:52:25: error: 'N' was not declared in this scope
   52 |     for(int i = 0 ; i < N; i++){
      |                         ^
doll.cpp:59:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |             while(pw < vec[i].size()){
      |                   ~~~^~~~~~~~~~~~~~~