Convert Uppercase Letters to Lowercase

Code

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

void to_lowercase(char *str) {
    // Your logic here
    uint8_t case_offset = 'a' - 'A';
    while(*str!='\0'){
        char new_sym = *str;

        if ((new_sym>='A')&&(new_sym<='Z')){
            *str = new_sym + case_offset;
        }
        // else if ((new_sym>='a')&&(new_sym<='z')){
        //     *str = new_sym - case_offset;
        // }
        // else{
        //     // do nothing
        // }

        str++;
    }
}

int main() {
    char str[101];
    fgets(str, sizeof(str), stdin);

    // Remove newline
    uint8_t i = 0;
    while (str[i]) {
        if (str[i] == '\n') {
            str[i] = '\0';
            break;
        }
        i++;
    }

    to_lowercase(str);
    printf("%s", str);
    return 0;
}

Solving Approach

 

 

 

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Input

Hello Embedded

Expected Output

hello embedded