Submission #919044

#	Time	Username	Problem	Language	Result	Execution time	Memory
919044		ayankarimova	Coins (IOI17_coins)	C++14	100 / 100	9 ms	1704 KiB

coins

#include "coins.h"
#define ll long long
using namespace std;
vector<int> coin_flips(vector<int> b, int c) {
    ll xr=0;
    for(int i=0; i<64; i++){
        if(b[i]) xr=xr^i;
    }
    vector<int>ret;
    ret.push_back(xr^c);
    return ret;
}

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

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