96. Convert Uppercase Letters to Lowercase

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

void to_lowercase(char *str) {
    // Your logic here
    char c ='a';
    int val =0;
    while ( *str != '\0'){
        if ( *str>= 'A' && *str <= 'Z'){
// printf("%C", *str); //confirmed
            c='a';
            while ( c>= 'a' && c <='z'){
//printf("%C", c); //confirmed
// val = *str - c; printf("%d", val ); //negative value

                if ( (int)(c - *str) == 32){
                     *str = c; break;
                } 
                c++;  
            }
    }
    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;
}