Can anyone tell me the difference(if any) b/w the following set of statements:

Question

Q1-"%d" vs " %d"
Q2-"%d-%d-%d" vs "%d -%d -%d"
Q3-"%f,%f" vs "%f ,%f"

Answer 1

main()
{
int a = 1,b = 2 , c = 3;
float x = 3.14 , y = 6.17 ;
puts("Q1");
printf("%d",a);
puts("");
printf(" %d",a);
puts("Q2");
printf("%d-%d-%d",a,b,c);
puts("");
printf("%d -%d -%d",a,b,c);
puts("Q3");
printf("%f,%f",x,y);
puts("");
printf ("%f ,%f",x,y);
}

Run above code as it is to see the answer
replace printf with scanf to see difference while taking input...