Submission #1176381

#	Time	Username	Problem	Language	Result	Execution time	Memory
1176381		VMaksimoski008	Coins (IOI17_coins)	C++20	100 / 100	5 ms	584 KiB

coins

#include "coins.h"
#include <vector>
using namespace std;

vector<int> coin_flips(vector<int> b, int c) {
    int x = 0;
    for(int i=0; i<64; i++) if(b[i]) x ^= i;    
    return { x ^ c };
}

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

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