Submission #1141447

#	Time	Username	Problem	Language	Result	Execution time	Memory
1141447		aarb_.tomatexd	Coins (IOI17_coins)	C++20	100 / 100	8 ms	584 KiB

coins

#include<bits/stdc++.h>
#include "coins.h"
#define SZ(x) ((int)(x).size())
#define ll long long
using namespace std;

vector<int> coin_flips(vector<int> b, int c){
    vector<int> flips;
    int xr = c;
    for(int i = 0; i < b.size(); i++) {
        if(b[i] == 1) xr = (xr ^ i);
    }
    flips.push_back(xr); return flips;
}
int find_coin(vector<int> b){
    int xr = 0;
    for(int i = 0; i<b.size(); i++){
        if(b[i] == 1)
            xr = (xr ^ i);
    }
    return xr;
}

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