Submission #412777

#	Time	Username	Problem	Language	Result	Execution time	Memory
412777		rqi	Coins (IOI17_coins)	C++14	100 / 100	24 ms	1536 KiB

coins

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

typedef vector<int> vi;

int N = 64;
vi coin_flips(vi b, int c) {
    int cur_num = 0;
    for(int i = 0; i < N; i++){
        if(b[i] == 1){
            cur_num^=i;
        }
    }
    return vi{cur_num^c};
}

int find_coin(vi b) {
   int cur_num = 0;
    for(int i = 0; i < N; i++){
        if(b[i] == 1){
            cur_num^=i;
        }
    }
    return cur_num;
}

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