Submission #909509

#	Time	Username	Problem	Language	Result	Execution time	Memory
909509		ttamx	Coins (IOI17_coins)	C++14	100 / 100	10 ms	2196 KiB

coins

#include "coins.h"

using namespace std;

vector<int> coin_flips(vector<int> b,int c){
    int res=0;
    for(int i=0;i<64;i++)if(b[i])res^=i;
    return {res^c};
}

int find_coin(vector<int> b) {
    int res=0;
    for(int i=0;i<64;i++)if(b[i])res^=i;
    return res;
}

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