How can I convert an int to a string in C?

tl;dr

You can use the sprintf or snprintf functions to convert an integer to a string in C. To do this, you need to declare a character array of sufficient size to store the string. The size of the array should be calculated using the formula

(int)((ceil(log10(num))+1)*sizeof(char))

Where num is the integer you want to convert.

Once you have declared the character array, you can use the sprintf or snprintf functions to convert the integer to a string. The syntax for this is sprintf(str, "%d", num), where str is the character array and num is the integer you want to convert.

Once the conversion is complete, the string will be stored in the character array.