What is use of %d

Answer 1

C uses formatted output. The 'printf' function has a special formatting character (%) — a character following this defines a certain format for a variable:

  %c — characters
  %d — integers
  %f  — floats

    printf("%c %d %f", ch, i, x);

NOTE: Format statement enclosed in "..." , variables follow after. Make sure order of format and variable data types match up.

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https://code.sololearn.com/W26q4WtwSP8W/?ref=app
https://code.sololearn.com/WvG0MJq2dQ6y/

Answer 2

This is used to format strings according to the args provided when printing. And this thing is used in many languages like C/C++, java, C#, python, etc.

I ll the C style to demonstrate it here.

printf("Hello today is %dst of %dth month", 1, 5 )

//Output: Hello today is the 1st of 5th month