Submission #860961

#	Time	Username	Problem	Language	Result	Execution time	Memory
860961		BlancaHM	Coins (IOI17_coins)	C++14	10 / 100	7 ms	1364 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]
    flips.push_back(c);
    b[c] = 1 - b[c];
    // Giramos el resto para que no coincidan
    for (int i = 0; i <= 63; i++) {
        if (b[i] == b[c] && i != c) {
            flips.push_back(i);
        }
    }
    return flips;
}

int find_coin(vector<int> b) {
    // Comprobamos si lo que se repiten son 1s o 0s
    int ones_count = 0;
    for (int i = 0; i <= 63; i++) {
        ones_count += b[i];
    }
    int searched = 1 - ones_count/63;
    // Buscamos entonces la moneda distinta
    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