Submission #918318

#	Time	Username	Problem	Language	Result	Execution time	Memory
918318		vjudge1	Coins (IOI17_coins)	C++17	100 / 100	8 ms	1620 KiB

coins

#include <bits/stdc++.h>
#include "coins.h"
using namespace std;
 
vector<int> coin_flips(vector<int> b, int c) {
    int a = c;
    for(int i = 0; i < 64; i++){
        if(b[i]) {
          a ^= i;
        }
    }
    return vector<int>() = {a};
}
 
int find_coin(vector<int> b) {
    int a = 0;
    for(int i = 0; i < 64; i++){
        if(b[i]) a ^= i;
    }
    return a;
}

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