Submission #1259522

#	Time	Username	Problem	Language	Result	Execution time	Memory
1259522		truongdz_top12	Coins (IOI17_coins)	C++20	100 / 100	5 ms	584 KiB

coins

#include "coins.h"
#include<bits/stdc++.h>
using namespace std;
vector<int>coin_flips(vector<int>b,int c)
{
    vector<int>res(1);
    int x=c;
    for(int i=0;i<b.size();++i)
        x^=b[i]*i;
    res[0]=x;
    return res;
}
int find_coin(vector<int>b)
{
    int x=0;
    for(int i=0;i<b.size();++i)
        x^=b[i]*i;
    return x;
}

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