제출 #1235480

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1235480		simplemind_31	Coins (IOI17_coins)	C++20	10 / 100	5 ms	584 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
using namespace std;
bool subtask1=true;
vector<int> coin_flips(vector<int> b, int c){
    if(c>=2){
        subtask1=false;
        int l=0,r=63;
        vector<int> flip;
        while(l<r){
            int mid=(l+r)>>1;
            if(c>mid){
                //derecha 11 o 01;
                if(!b[mid+1]){
                    flip.push_back(mid+1);
                }
                l=mid+1;
            }else{
                //izquierda 00 o 10
                if(b[mid+1]){
                    flip.push_back(mid+1);
                }
                r=mid;
            }
        }
        if(flip.empty()){
            flip={0,0};
        }
        return flip;
    }else{
        vector<int> flip;
        if(c==1){
            if(b[1]==1){
                flip.push_back(0);
            }else{
                flip.push_back(1);
            }
        }else{
            if(b[1]==1){
                flip.push_back(1);
            }else{
                flip.push_back(0);
            }
        }
        return flip;
    }
}
int find_coin(vector<int> b){
    int l=0,r;
    if(subtask1){
        r=1;
    }else{
        r=63;
    }
    while(l<r){
        int mid=(l+r)>>1;
        if(b[mid+1]){
            l=mid+1;
        }else{
            r=mid;
        }
    }
    return l;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 50