/*

Ðåàëèçóéòå ìåòîä flipBit, èçìåíÿþùèé çíà÷åíèå îäíîãî áèòà çàäàííîãî öåëîãî ÷èñëà íà ïðîòèâîïîëîæíîå.

Äîãîâîðèìñÿ, ÷òî áèòû íóìåðóþòñÿ îò ìëàäøåãî (èíäåêñ 1) ê ñòàðøåìó (èíäåêñ 32).

Âîñïîëüçóéòåñü ïðåäîñòàâëåííûì øàáëîíîì. Äåêëàðàöèþ êëàññà, ìåòîä main è îáðàáîòêó ââîäà-âûâîäà äîáàâèò ïðîâåðÿþùàÿ ñèñòåìà.

Sample Input:

0 1

Sample Output:

1

*/

/**

* Flips one bit of the given <code>value</code>.

*

* @param value any number

* @param bitIndex index of the bit to flip, 1 <= bitIndex <= 32

* @return new value with one bit flipped

*/

public static int flipBit(int value, int bitIndex) {

int cond = (1 << (bitIndex - 1)) & value;

if (cond > 0) {

value = value - (1 << (bitIndex - 1));

}

else

value += (1 << (bitIndex - 1));

return value;

}