Submission #332973

#	Time	Username	Problem	Language	Result	Execution time	Memory
332973		knightron0	Coins (IOI17_coins)	C++14	100 / 100	13 ms	1808 KiB

coins

#include <bits/stdc++.h>
#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
    std::vector<int> ans;
    int val= c;
    for(int i = 0;i<64;i++){
    	val ^= (b[i] * i);
    }
    ans.push_back(val);
    return ans;
}

int find_coin(std::vector<int> b) {
	int val= 0;
    for(int i = 0;i<64;i++){
    	val ^= (b[i] * i);
    }
    return val;
}

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