Submission #860959

#	Time	Username	Problem	Language	Result	Execution time	Memory
860959		BlancaHM	Coins (IOI17_coins)	C++14	10 / 100	6 ms	1688 KiB

coins

#include "coins.h"
using namespace std;
 
vector<int> coin_flips(vector<int> b, int c) {
    vector<int> flips;
    // Es obligatorio girar al menos una casilla => giremos b[c]
    if (b[c] == 1) {
        // si b[c] = 1, hacemos que b[c] sea igual a 0 y que el resto sean 1s
        b[c] = 0;
        flips.push_back(c);
        for (int i = 0; i <= 63; i++) {
            if (b[i] == 0 && i != c) {
                flips.push_back(i);
            }
        }
    } else {
        // hacemos que b[c] sea igual a 1 y que el resto sean 0s
        b[c] = 1;
        flips.push_back(c);
        for (int i = 0; i <= 63; i++) {
            if (b[i] == 1 && i != c) {
                flips.push_back(i);
            }
        }
    }
    return flips;
}

int find_coin(vector<int> b) {
    int ones_count = 0;
    for (int i = 0; i <= 63; i++) {
        ones_count += b[i];
    }
    int searched = 1 - ones_count/63;
    for (int i = 0; i <= 62; i++) {
        if (b[i] == searched) return i;
    }
    return 63;
}

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