(C lang) %d vs %f

[silent bane]

please tell the work of %d and %f
i m little bit confused in functions of %d and %f bcz
code run properly when i tried in college in turbo compiler
vs
code run properly when i tried in home in vs code

difference in use of %f and %d in both code

//tried in home in vs code 

#include<stdio.h>
#include<conio.h>
int main() {

    int age , sum ;

    printf("enter age") ;
    scanf("%d" , &age ) ;

    printf("age %d" , age ) ;

    return 0 ;
} 

//tried in clg in turbo 

#include<stdio.h>
#include<conio.h>
int main() {

    int age , sum ;

    printf("enter age") ;
    scanf("%f" , &age ) ;

    printf("age %d" , age ) ;

    return 0 ;
}```

please reply fast, i have 3 days holiday  and want to complete c ASAP

[waxen sandal]

When your question is answered use !solved to mark the question as resolved.

Remember to ask specific questions, provide necessary details, and reduce your question to its simplest form. For tips on how to ask a good question run !howto ask.

[wild void]

"%d" is used to tell scanf f to read integers (int)
"%f" is used to tell scanf to read real decimal number (float/double)

[silent bane]

if i have to use %f then i have to use it with scanf (%f) as well as printf(%f)

?

[wild void]

;compile

1234
432.463

#include<stdio.h>

int main() {

    int age , sum ;
    float height;

    printf("enter age\n") ;
    scanf("%d" , &age ) ;
    printf("age %d\n" , age ) ;

    printf("enter height\n") ;
    scanf("%f" , &height ) ;
    printf("height %f\n" , height ) ;

    return 0 ;
}

[lean ingot]

Program Output

enter age
age 1234
enter height
height 432.463013

ZeroPointer#6105 | 177ms | c | x86-64 gcc 12.2 | godbolt.org

[silent bane]

ok thank you

[wild void]

also it is adviced to use %lf and double, instead of %f and float
More precision

(lf stands for long float)

[silent bane]

oh soo in "int" value i can use %lf also ?

bcz 6 is also 6.0 somewhere

[wild void]

6 is an int and uses %d
6.0 is a double and uses %lf

[silent bane]

one more thing

[silent bane]

if i have to print name monkey

then what i have to use ?

%char

[wild void]

%s

/cref printf

[silent bane]

ohk

[clear python]

cppreference.com

printf, fprintf, sprintf, snprintf, printf\_s, fprintf\_s, sprintf\_s, snprintf\_s

int printf(const char* restrict format, ...);```(since C99)  
```cpp
int fprintf(
    FILE* restrict stream,
    const char* restrict format,
    ...);```(since C99)  
```cpp
int sprintf(
    char* restrict buffer,
    const char* restrict format,
    ...);```(since C99)  
*5 declarations omitted, follow the link for more*

Defined in header

<stdio.h>

[silent bane]

um little bit confusing
umm leave it I will learn it with my lessons ig then I will understand it more accurately

[silent bane]

thanks for answering

!solved

[waxen sandal]

Thank you and let us know if you have any more questions!