#include <stdio.h> #include <stdint.h> uint8_t toggle_bit(uint8_t reg, uint8_t pos) { // left shift 1 by <pos> bits and then XOR it with reg // 1 ^ 1 -> 0 ; 0 ^ 1 -> 1 reg = reg ^ (1 << pos); return reg; } int main() { uint8_t reg, pos; scanf("%hhu %hhu", ®, &pos); uint8_t result = toggle_bit(reg, pos); printf("%u", result); return 0; }
Test Cases
Test Results
Input
6 1
Expected Output
4