Submission #1060630

#	Time	Username	Problem	Language	Result	Execution time	Memory
1060630		ArthuroWich	Mechanical Doll (IOI18_doll)	C++17	10 / 100	48 ms	8280 KiB

doll

#include "doll.h"
#include<bits/stdc++.h>
using namespace std;
struct node {
    int l = -1, r = -1, y = 0;
};
int timer = 2, dep;
vector<int> x, y;
node tree[200005];
void build(int n, int d) {
    if (dep-1 == d) {
        return;
    }
    tree[n].l = -timer;
    timer++;
    tree[n].r = -timer;
    timer++;
    build(-tree[n].l, d+1);
    build(-tree[n].r, d+1);
}
void create(int n, int d, int v) {
    if (dep-1 == d) {
        if (tree[n].y == 0) {
            tree[n].l = v;
        } else {
            tree[n].r = v;
        }
    } else {
        if (tree[n].y == 0) {
            create(-tree[n].l, d+1, v);
        } else {
            create(-tree[n].r, d+1, v);
        }
    }
    tree[n].y ^= 1;
}
void create_circuit(int m, vector<int> a) {
    vector<int> d(m+1, -1);
    d[0] = a[0];
    int n = a.size(), s;
    dep = ceil(log2(n));
    s = 1 << dep;
    build(1, 0);
    for (int i = 1; i < s; i++) {
        if (i < a.size()) {
            create(1, 0, a[i]);
        } else {
            create(1, 0, -1);
        }
    }
    create(1, 0, 0);
    for (int i = 1; i < s; i++) {
        x.push_back(tree[i].l);
        y.push_back(tree[i].r);
    }
    answer(d, x, y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:45:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |         if (i < a.size()) {
      |             ~~^~~~~~~~~~

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