제출 #1235102

#제출 시각아이디문제언어결과실행 시간메모리
1235102moondarksideCoins (IOI17_coins)C++20
100 / 100
9 ms732 KiB
#include<bits/stdc++.h>
using namespace std;

std::vector<int> coin_flips(vector<int> b, int c){
    int mult=1;
    int spot=0;
    for(int i=0;i<8;i++){
        int par=0;
        for(int j=0;j<64;j++){
            par+=b[j]*((j & mult)!=0);
        }
        
        spot+=(par%2)*mult;
        mult*=2;
    }
    return{spot ^ c};
}


int find_coin(vector<int> b){
    int mult=1;
    int spot=0;
    for(int i=0;i<8;i++){
        int par=0;
        for(int j=0;j<64;j++){
            par+=b[j]*((j & mult)!=0);
        }
        
        spot+=(par%2)*mult;
        mult*=2;
    }
    return spot;
}
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