Convert a String to Float

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

float custom_atof(const char *str) {
    // Your logic here
    float num=0.0;
    int sign=1;
    int i=0;
    if(str[0]=='-'){sign=-1;i++;}
    else if(str[0]=='+'){sign=1;i++;}
    while(str[i]!='.'&&str[i]!='\0'){
        num=num*10+(str[i]-'0');
        i++;
    }
    if(str[i]=='.'){
        i++;
        float divisor=10.0;
        while(str[i]!='\0'){
            num+=(str[i]-'0')/divisor;
            divisor*=10.0;
            i++;
        }
    }
    return sign*num;
}

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++;
    }

    float value = custom_atof(str);
    printf("%.2f", value);
    return 0;
}