Submission #1112756

#	Time	Username	Problem	Language	Result	Execution time	Memory
1112756		enzy	Coins (IOI17_coins)	C++14	100 / 100	11 ms	1852 KiB

coins

#include "coins.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> coin_flips(vector<int> b, int c) {
    vector<int>flips;
    int x=0, cnt=0;
    for(int a : b){
        if(a==1) x=x^cnt;
        cnt++;
    }
    flips.push_back(x^c);
    return flips;
}

int find_coin(vector<int> b){
    int x=0, cnt=0;
    for(int a : b){
        if(a==1) x=x^cnt;
        cnt++;
    }
    return x;
}

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