Submission #1220869

#	Time	Username	Problem	Language	Result	Execution time	Memory
1220869		AlgorithmWarrior	Coins (IOI17_coins)	C++20	100 / 100	9 ms	744 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>

using namespace std;

int codif(vector<int>b){
    int rez=0;
    int i;
    for(i=0;i<64;++i)
        rez^=b[i]*i;
    return rez;
}

vector<int>coin_flips(vector<int>b,int c) {
    return {codif(b)^c};
}

int find_coin(vector<int>b){
    return codif(b);
}

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