#include <stdio.h>
#include <stdint.h>
uint8_t clear_bit(uint8_t reg, uint8_t pos) {
// Your code here
reg = reg & ~(1<<pos);
return reg;
}
int main() {
uint8_t reg, pos;
scanf("%hhu %hhu", ®, &pos);
uint8_t result = clear_bit(reg, pos);
printf("%u", result);
return 0;
}
uint8_t clear_bit(uint8_t reg, uint8_t pos) {
// Your code here
reg = reg & (~(1<<pos));
return reg;
}
consider example 2
Input: reg = 0000 1111, pos = 3
Output: 0000 0111
1. (1<<pos) :- 1 left shifting specific position
2. (~(1<<pos)) :- (1<<pos) this position bit complementing
0000 1111 -> (1<<pos)
0000 0111 -> (~(1<<pos))
3. reg & (~(1<<pos)) :- reg & operation
0000 1111 -> reg
0000 0111 -> (~(1<<pos))
----------
0000 0111 -> result
----------
Input
7 0
Expected Output
6