Submission #292539

#	Time	Username	Problem	Language	Result	Execution time	Memory
292539		egekabas	Mechanical Doll (IOI18_doll)	C++14	53 / 100	226 ms	18372 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<int, int> pii;
typedef pair<ld, ld> pld;
vector<int> g[100009];
int x[400009];
int y[400009];
int n;
int curswitch = -1;
int create(vector<int> vec, int begin){
    if(vec.empty()) return 0;
    if(vec.size() == 1) return vec[0];
    int cur = curswitch;
    --curswitch;
    if(begin){
        reverse(all(vec));
        for(int i = 0; i < 30; ++i)
            if((1<<i) >= vec.size()){
                while(vec.size() < (1<<i))
                    vec.pb(cur);
                break;
            }
        reverse(all(vec));
    }
    vector<int> v1, v2;
    for(int i = 0; i < vec.size(); ++i){
        if(i%2 == 0)
            v1.pb(vec[i]);
        else
            v2.pb(vec[i]);
    }
    x[-(cur+1)] = create(v1, 0);
    y[-(cur+1)] = create(v2, 0);
    return cur;

}
void create_circuit(int M, std::vector<int> A) {
    n = A.size();
    for(int i = 1; i < n; ++i)
        g[A[i-1]].pb(A[i]);
    g[A[n-1]].pb(0);
    g[0].pb(A[0]);
    vector<int> C(M+1);
    for(int i = 0; i <= M; ++i){
        C[i] = create(g[i], 1);
    }
    int switchsize = -(curswitch+1);
    vector<int> X(switchsize), Y(switchsize);
    for(int i = 0; i < switchsize; ++i){
        X[i] = x[i];
        Y[i] = y[i];
    }
    
    answer(C, X, Y);
}

Compilation message (stderr)

doll.cpp: In function 'int create(std::vector<int>, int)':
doll.cpp:29:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |             if((1<<i) >= vec.size()){
      |                ~~~~~~~^~~~~~~~~~~~~
doll.cpp:30:34: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |                 while(vec.size() < (1<<i))
      |                       ~~~~~~~~~~~^~~~~~~~
doll.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     for(int i = 0; i < vec.size(); ++i){
      |                    ~~^~~~~~~~~~~~

• Subtask 1: 2 / 2
• Subtask 2: 4 / 4
• Subtask 3: 10 / 10
• Subtask 4: 0 / 10
• Subtask 5: 9.0000000036 / 18
• Subtask 6: 28.0000000112 / 56