Submission #1235520

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235520		simplemind_31	Coins (IOI17_coins)	C++20	100 / 100	9 ms	584 KiB

coins

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

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