Submission #729431

#	Time	Username	Problem	Language	Result	Execution time	Memory
729431		Blistering_Barnacles	Cave (IOI13_cave)	C++11	12 / 100	604 ms	13640 KiB

cave

#include "cave.h"
//Billions of bilious blue blistering barnacles in a thundering typhoon!
#pragma GCC optimize("Ofast,fast-math,unroll-loops")
#pragma GCC target("avx2,fma")
#include<bits/stdc++.h>
#define fast ios::sync_with_stdio(0) , cin.tie(0)
#define F first
#define S second
#define pb push_back
#define vll vector< ll >
#define vi vector< int >
#define pll pair< ll , ll >
#define pi pair< int , int >
#define all(s) s.begin() , s.end()
#define sz(s) s.size()
#define str string
#define md ((s + e) / 2)
#define mid ((l + r) / 2)
#define msdp(dp) memset(dp , -1 , sizeof dp)
#define mscl(dp) memset(dp , 0 , sizeof dp)
#define C continue
#define R return
#define B break
#define lx node * 2
#define rx node * 2 + 1
#define br(dosomething) {dosomething; break;}
#define co(dosomething) {dosomething ; continue;}
using namespace std;
typedef long long ll;
ll q, dp[500005] , a[555555] , b[555555], k, l, m, n, o, p;
map < ll , ll > mp;
vll adj[555555];
const ll mod = 1e9+7;
str s ;
void exploreCave(int N) {
    n = N ;
    ll cnt = 0 ; 
    int S[n] , D[n] ;
    for(ll i = 0 ; i < n ; i++)D[i] = S[i] = 0 ;
    for(ll i = 0 ; i < n ; i++){
        for(ll j = 0 ; j < n ;j++){
            if(a[j])C ;
            S[j] = 0 ;
        }
        cnt++ ; 
        assert(cnt <= 70000) ; 
        int op = tryCombination(S) ;
        if(op == -1 || op > i){
            int l = -1 , r = n ;
            while(r - l > 1){
                for(ll j = 0 ; j < n ; j++){
                    if(a[j])C ;
                    if(j <= mid)S[j] = 0 ;
                    else S[j] = 1 ;
                }
                int op = tryCombination(S) ;
                cnt++ ; 
                assert(cnt <= 70000) ; 
                if(op == -1 || op > i)r = mid ;
                else l = mid ;
            }
            a[r] = 1 ;
            S[r] = 0 ;
            D[i] = r ;
        }
        else {
            int l = -1 , r = n ;
            while(r - l > 1){
                for(ll j = 0 ; j < n ; j++){
                    if(a[j])C ;
                    if(j <= mid)S[j] = 1 ;
                    else S[j] = 0 ;
                }
                cnt++ ; 
                assert(cnt <= 70000) ; 
                int op = tryCombination(S) ;
                if(op == -1 || op > i)r = mid ;
                else l = mid ;
            }
            a[r] = 1 ;
            S[r] = 1 ;
            D[i] = r ;
        }
    }
    answer(S , D) ;
}

• Subtask 1: 12 / 12
• Subtask 2: 0 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 30
• Subtask 5: 0 / 24