Submission #1308549

#	Time	Username	Problem	Language	Result	Execution time	Memory
1308549		Tymond	ICC (CEOI16_icc)	C++20	61 / 100	105 ms	624 KiB

icc

#include "icc.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define fi first
#define se second
#define vi vector<int>
#define vll vector<long long>
#define pii pair<int, int>
#define pll pair<long long, long long>
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
mt19937_64 rng64(chrono::high_resolution_clock::now().time_since_epoch().count());
inline int rand(int l,int r){return uniform_int_distribution<int>(l, r)(rng);}
inline ll rand(ll l,ll r){return uniform_int_distribution<ll>(l, r)(rng64);}
#ifdef DEBUG
auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";}
auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";}
#define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X)
#else
#define debug(...){}
#endif

struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }

    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

struct pair_hash{
  size_t operator()(const pair<int,int>&x)const{
    return hash<long long>()(((long long)x.first)^(((long long)x.second)<<32));
  }
};

int MAXN = 102;
int ask(vi x, vi y){
    if(sz(x) == 0 || sz(y) == 0){
        return 0;
    }
    int A[MAXN];
    int B[MAXN];
    for(int i = 0; i < sz(x); i++){
        A[i] = x[i];
    }

    for(int i = 0; i < sz(y); i++){
        B[i] = y[i];
    }
    return query(sz(x), sz(y), A, B);
}

void run(int N){
    int n = N;
    vi vec = {};
    vector<vi> a(n + 1, vi());
    vi rep(n + 1);
    for(int i = 1; i <= n; i++){
        vec.pb(i);
        rep[i] = i;
        a[i].pb(i);
    }

    for(int _ = 1; _ < n; _++){
        vi x = {};
        vi y = {};
        shuffle(all(vec), rng);
        for(int i = 0; i < sz(vec); i++){
            if(i < sz(vec) / 2){
                for(auto ele : a[vec[i]]){
                    x.pb(ele);
                }
            }else{
                for(auto ele : a[vec[i]]){
                    y.pb(ele);
                }
            }
        }

        while(!ask(x, y)){
            x.clear();
            y.clear();

            shuffle(all(vec), rng);
            for(int i = 0; i < sz(vec); i++){
                if(i < sz(vec) / 2){
                    for(auto ele : a[vec[i]]){
                        x.pb(ele);
                    }
                }else{
                    for(auto ele : a[vec[i]]){
                        y.pb(ele);
                    }
                }
            }
        }

        int A = -1;
        int B = -1;

        int l = 0;
        int p = sz(x) - 1;
        int mid;
        while(l < p){
            mid = (l + p) / 2;
            vi nx = {};
            for(int j = 0; j <= mid; j++){
                nx.pb(x[j]);
            }

            if(ask(nx, y)){
                p = mid;
            }else{
                l = mid + 1;
            }
        }

        A = x[l];

        l = 0;
        p = sz(y) - 1;
        while(l < p){
            mid = (l + p) / 2;
            vi ny = {};
            for(int j = 0; j <= mid; j++){
                ny.pb(y[j]);
            }

            if(ask(ny, x)){
                p = mid;
            }else{
                l = mid + 1;
            }
        }

        B = y[l];

        setRoad(A, B);
        A = rep[A];
        B = rep[B];
        if(sz(a[A]) < sz(a[B])){
            swap(A, B);
        }

        for(auto ele : a[B]){
            rep[ele] = A;
            a[A].pb(ele);
        }
        vi().swap(a[B]);
        vi nvec = {};
        for(auto ele : vec){
            if(ele != B){
                nvec.pb(ele);
            }
        }
        vec = nvec;
    }
}

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 22 / 22
• Subtask 4: 21 / 21
• Subtask 5: 0 / 29
• Subtask 6: 0 / 10