Submission #988889

#	Time	Username	Problem	Language	Result	Execution time	Memory
988889		gutzzy	Coins (IOI17_coins)	C++14	100 / 100	8 ms	1984 KiB

coins

#include <bits/stdc++.h>
using namespace std;

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

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

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