Submission #580825

#	Time	Username	Problem	Language	Result	Execution time	Memory
580825		Omar_Elgedawy	Coins (IOI17_coins)	C++14	100 / 100	10 ms	1552 KiB

coins

#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;
vector<int> coin_flips(vector<int> b, int c) {  
    vector<int>inv;
    int x=0;
    for(int i=0;i<64;i++){
        x^=(i)*b[i];
    }
    inv.push_back(x^c);
    return inv;
}

int find_coin(std::vector<int> b){
    int x=0;
    for(int i=0;i<64;i++){
        x^=(i)*b[i];
    }
    return x;
}

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