Submission #416964

#	Time	Username	Problem	Language	Result	Execution time	Memory
416964		wiwiho	Mechanical Doll (IOI18_doll)	C++14	47 / 100	144 ms	9632 KiB

doll

#include "doll.h"

#include <bits/stdc++.h>
#include <bits/extc++.h>

#define StarBurstStream ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define iter(a) a.begin(), a.end()
#define riter(a) a.rbegin(), a.rend()
#define lsort(a) sort(iter(a))
#define gsort(a) sort(riter(a))
#define pb(a) push_back(a)
#define eb(a) emplace_back(a)
#define pf(a) push_front(a)
#define ef(a) emplace_front(a)
#define pob pop_back()
#define pof pop_front()
#define mp(a, b) make_pair(a, b)
#define F first
#define S second
#define mt make_tuple
#define gt(t, i) get<i>(t)
#define tomax(a, b) ((a) = max((a), (b)))
#define tomin(a, b) ((a) = min((a), (b)))
#define topos(a) ((a) = (((a) % MOD + MOD) % MOD))
#define uni(a) a.resize(unique(iter(a)) - a.begin())
#define printv(a, b) {bool pvaspace=false; \
for(auto pva : a){ \
    if(pvaspace) b << " "; pvaspace=true;\
    b << pva;\
}\
b << "\n";}

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;

using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pdd = pair<ld, ld>;
using tiii = tuple<int, int, int>;

const ll MOD = 1000000007;
const ll MAX = 2147483647;

template<typename A, typename B>
ostream& operator<<(ostream& o, pair<A, B> p){
    return o << '(' << p.F << ',' << p.S << ')';
}

ll ifloor(ll a, ll b){
    if(b < 0) a *= -1, b *= -1;
    if(a < 0) return (a - b + 1) / b;
    else return a / b;
}

ll iceil(ll a, ll b){
    if(b < 0) a *= -1, b *= -1;
    if(a > 0) return (a + b - 1) / b;
    else return a / b;
}

vector<int> x(1, MAX), y(1, MAX);
vector<int> a;
int ts = -1;
int n;
int dfs(int id, int cnt, int num, int go){
    if((1 << cnt) > n - 1) return go;
    if(id == MAX){
        id = --ts;
        x.eb(MAX);
        y.eb(MAX);
    }
    if(1 << cnt & num){
        int tmp = dfs(y[-id - 1], cnt + 1, num, go);
        y[-id - 1] = tmp;
    }
    else{
        int tmp = dfs(x[-id - 1], cnt + 1, num, go);
        x[-id - 1] = tmp;
    }
    return id;
}

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

    vector<int> c(m + 1, -1);
    c[0] = a[0];
    a.erase(a.begin());
    a.eb(0);
    n = a.size();

    for(int i = 0; i < n - 1; i++){
        dfs(-1, 0, i, a[i]);
    }
    dfs(-1, 0, (1 << (__lg(n - 1) + 1)) - 1, 0);
//    printv(x, cerr);
//    printv(y, cerr);
//    printv(c, cerr);

    for(int i = 0; i < x.size(); i++){
        if(x[i] == MAX) x[i] = -1;
        if(y[i] == MAX) y[i] = -1;
    }

    answer(c, x, y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:104:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 |     for(int i = 0; i < x.size(); i++){
      |                    ~~^~~~~~~~~~

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