Submission #782405

#	Time	Username	Problem	Language	Result	Execution time	Memory
782405		vjudge1	Mechanical Doll (IOI18_doll)	C++17	53 / 100	146 ms	28128 KiB

doll

#include "doll.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> X, Y, C;
int ms(int a, int b) {
    X.push_back(a);
    Y.push_back(b);
    return -Y.size();
}
int CALCTREE(vector<int> x, int lev) {
    if(lev==0) return x[0];
    vector<int> v[2];
    for(int i = 0; i < x.size(); i++) {
        v[i%2].push_back(x[i]);
    }
    int tmp = X.size();
    ms(0,0);
    X[tmp] = CALCTREE(v[0], lev-1);
    Y[tmp] = CALCTREE(v[1],lev-1);
    return -tmp-1;
}
vector<int> adj[500100];
void create_circuit(int M, std::vector<int> A) {
    C.resize(M+1);
    int n = A.size();
    adj[0].push_back(A[0]);
    A.push_back(0);
    for(int i = 0; i < n; i++)
        adj[A[i]].push_back(A[i+1]);
    for(int i = 0; i <= M; i++) {
        if(!adj[i].size()) continue;
        int x = 32-__builtin_clz((int)adj[i].size()-1);
        if(adj[i].size()==1) x = 0;
        int targetsz=1<<x;
        vector<int> make;
        for(int j = adj[i].size(); j < targetsz; j++) {
            make.push_back(-(int)X.size()-1);
        }
        for(auto j:adj[i])
            make.push_back(j);
        C[i] = CALCTREE(make,x);
    }
    answer(C, X, Y);
    
}

Compilation message (stderr)

doll.cpp: In function 'int CALCTREE(std::vector<int>, int)':
doll.cpp:13:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for(int i = 0; i < x.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