Google Interview Question for Software Engineers


Country: United States




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what do you mean set all of values to be true? Does it mean that we need to set all of values which have been appeared to be true?

- lixx3527 July 11, 2019 | Flag Reply
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yes it means to set all values in stream to be true

- neer.1304 July 20, 2019 | Flag
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of 0 vote

Assume 32 bit integer

bit_vector = vector<int>;

void setTrue(index) {
	int remainder = index % 32;
	bit_vector[index/32] |= 1 << remainder; 
}

void setFalse(index) {
	int remainder = index % 32;
	bit_vector[index/32] &= ~(1 << remainder); 
}

void setAllTrue() {
	for (int& i : bit_vector) {
		i |= 0xFFFF;
	}
}

void setAllFalse() {
	for (int& i : bit_vector) {
		i &= 0;
	}
}

bool getIndex(index) {
	int remainder = index % 32;
	return (bit_vector[index/32] >> remainder) & 1;  
}

- SK September 07, 2019 | Flag Reply


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