Set Multiple Bits in 8-bit Register

Code

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

uint8_t set_range(uint8_t reg, uint8_t start, uint8_t end) {
    for(int n = start ;n<=end; n++){  // tells where to start to print 1 and where to end
        int mask = (1<<n);            // this will print bit 1 in mask one by one acording to end position
        reg = reg | mask ;
    }
    return reg;
}

int main() {
    uint8_t reg, start, end;
    scanf("%hhu %hhu %hhu", &reg, &start, &end);
    printf("%u", set_range(reg, start, end));
    return 0;
}

Solving Approach