1. Set or Clear a Specific Bit in a Register

/*Paste your code here*/
#include <stdio.h>
unsigned char modifyBit(unsigned char reg, int pos, int mode) {
  if (mode == 1) {
      reg |= (1 << pos);  // Set bit
  } else {
      reg &= ~(1 << pos); // Clear bit
  }
  return reg;
}
int main() {
  unsigned char reg;
  int pos, mode;
  scanf("%hhu %d %d", &reg, &pos, &mode);
  printf("%d", modifyBit(reg, pos, mode));
  return 0;
}