Submission #534588

#	Time	Username	Problem	Language	Result	Execution time	Memory
534588		jk410	Coins (IOI17_coins)	C++17	100 / 100	13 ms	1544 KiB

coins

#include "coins.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> coin_flips(vector<int> b,int c) {
    vector<int> flips(1);
    int cur=0;
    for (int i=0; i<64; i++){
        if (!b[i])
            continue;
        for (int j=0; j<6; j++){
            if (i&(1<<j))
                cur^=(1<<j);
        }
    }
    flips[0]=(c^cur);
    return flips;
}

int find_coin(vector<int> b) {
    vector<int> flips(1);
    int cur=0;
    for (int i=0; i<64; i++){
        if (!b[i])
            continue;
        for (int j=0; j<6; j++){
            if (i&(1<<j))
                cur^=(1<<j);
        }
    }
    return cur;
}

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