Submission #1299252

#	Time	Username	Problem	Language	Result	Execution time	Memory
1299252		lizi14	Obstacles for a Llama (IOI25_obstacles)	C++20	0 / 100	72 ms	6188 KiB

obstacles

#include "obstacles.h"
#include <bits/stdc++.h>
using namespace std;
const int N=2e5+5;
vector<int>k;
long long n;
void initialize(vector<int> T, vector<int> H) {
    n=H.size();
    int j=0;
    for(int j=0; j<H.size(); j++){
        if(T[0]<=H[j]){
            //x[j]=-1;
            k.push_back(j);
        }
        else{
            //x[j]=1;
        }
        //cout<<x[j]<<" ";
        //x[j]=a;
        //j++;
    }
    return;
}

bool can_reach(int L, int R, int S, int D) {
    //L--,R--,S--,D--;
    if(S>D)swap(S,D);
    auto it=lower_bound(k.begin(),k.end(),S);
    if(*it<D){
        return 0;
    }
    //if(lower_bound(k.begin(),k.end(),S)<D)return 0;
    else return true;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 10
• Subtask 2: 0 / 14
• Subtask 3: 0 / 13
• Subtask 4: 0 / 21
• Subtask 5: 0 / 25
• Subtask 6: 0 / 17