Submission #418221

#	Time	Username	Problem	Language	Result	Execution time	Memory
418221		FlippenFaz	Mechanical Doll (IOI18_doll)	C++11	Compilation error	0 ms	0 KiB

doll

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

vector<int> c;
vector<int> x;
vector<int> y;

vector<vector<int>> cons;

void connect(int start, int end) {
    if (c[start] == 0) {
        c[start] = end;
    } else if (c[start] > 0) {
        x.push_back( c[start] );
        y.push_back( end );
        c[start] = -x.size();
    } else {
        
    }
}

void create_circuit(int m, vector<int> a) {

    cons.resize(m+1);
    c.resize(m+1);

    int prev = 0;
    for (int i = 0; i < a.size(); i++) {
        cons[prev].push_back(a[i]);
    }

    for (int i = 0; i < cons.size(); i++) {
        if (cons[i].size() == 0) {
            c[i] = 0;
        } else if (cons[i].size() == 1) {
            c[i] == cons[i][0];
        } else {
            int offset = -x.size();
            int added = pow(2,ceil(log2(cons[i].size()))) - 1;
            for (int i = 1; i < added+1; i++) {
                x.push_back( offset -i*2 );
                y.push_back( offset -i*2 - 1);
            }
            int last = added/2+1;
            int start = x.size()-1-last;
            int cnt = 0;
            for (int i = start; i < x.size(); i++) {
                x[i] = -i-1;
                y[i] = cons[i][cnt++];
            }
            for (int i = start; cnt < cons[i].size(); i++) {
                x[i] = y[i];
                y[i] = cons[i][cnt++];
            }
            
        }
    }

    answer(c, x, y);

}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for (int i = 0; i < a.size(); i++) {
      |                     ~~^~~~~~~~~~
doll.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for (int i = 0; i < cons.size(); i++) {
      |                     ~~^~~~~~~~~~~~~
doll.cpp:38:18: warning: value computed is not used [-Wunused-value]
   38 |             c[i] == cons[i][0];
doll.cpp:49:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |             for (int i = start; i < x.size(); i++) {
      |                                 ~~^~~~~~~~~~
doll.cpp:53:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |             for (int i = start; cnt < cons[i].size(); i++) {
      |                                 ~~~~^~~~~~~~~~~~~~~~
doll.cpp:61:5: error: 'answer' was not declared in this scope
   61 |     answer(c, x, y);
      |     ^~~~~~