20. Clear Specific Bits in a 32-bit Register

#include <stdio.h>
#include <stdint.h>

uint32_t clear_bits(uint32_t reg, uint8_t pos, uint8_t len) {
    // Your code here
    uint32_t reg2 =0;
if((pos >= 0 && pos <= 31) && (len >= 0 && len <= 31)){
for (uint8_t i = pos; i < (pos + len); i++){
reg2 |= (1 << i);
}
reg &= ~(reg2);
}

    return reg;
}

int main() {
    uint32_t reg;
    uint8_t pos, len;
    scanf("%u %hhu %hhu", &reg, &pos, &len);
    printf("%u", clear_bits(reg, pos, len));
    return 0;
}