Submission #250593

#	Time	Username	Problem	Language	Result	Execution time	Memory
250593		aloo123	Coins (IOI17_coins)	C++14	0 / 100	15 ms	1528 KiB

coins

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

using namespace std;

 
// const ll INF = 1e12;
// const ll N =(1e5+5); // TODO : change value as per problem
// const ll MOD = 1e9;
vector<int> coin_flips(vector<int> b, int c) {
    int x = 0;
    for(int i = 0;i<64;i++){
        if(b[i])
            x ^= b[i];
    }
    if(x == 0) {
        // even number of 1s
        vector<int> v;
        v.push_back(c);
        return v;
    }
    else{
        // odd number of 1s
        vector<int> v;
        v.push_back(c ^ x);
        return v;
    }
}

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

• Subtask 1: 0 / 10
• Subtask 2: 0 / 15
• Subtask 3: 0 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 50