제출 #1177502

#제출 시각아이디문제언어결과실행 시간메모리
1177502kadir동굴 (IOI13_cave)C++20
100 / 100
318 ms568 KiB
#include "cave.h"
#include<bits/stdc++.h>
#define ll int
#define ff first
#define ss second
#define pb push_back
using namespace std;
const ll mod=1e9+7;
const ll inf=1e9;
const ll mxn=2e5+5;
void exploreCave(int n){
   	int s[n],k[n];
    vector<bool> d(n,0);
    for(int i=0; i<n; i++) {
        vector<int>v;
        for(int j=0; j<n; j++) {
            if(!d[j]) {
                v.pb(j);
            }
        }
        int sz=v.size(),l=0,r=v.size()-1;
        for(int j=0; j<v.size(); j++) {
            s[v[j]]=0;
        }
        int x=tryCombination(s);
        int q=0,p=1;
        if(x==i) {
            swap(q,p);
        }
        while(l<r) {
            int mid=(l+r)/2;
            for(int j=0; j<sz; j++) {
                if(j<=mid) {
                    s[v[j]]=q;
                } else {
                    s[v[j]]=p;
                }
            }
            x=tryCombination(s);
            if(x==-1||x>i){
                r=mid;
            } else {
                l=mid+1;
            }
        }
        k[v[l]]=i;
        s[v[l]]=q;
        d[v[l]]=true;
    }
    answer(s,k);
}
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