Why print else part not if part any one knows answer tell me

Question

void main()
{
float a=1.1;
if (a==1.1)
printf("santosh");
else
printf("find reason");
getch();
}

Answer 1

The issue is that you are trying to compare to floats for equality. It is likely that a floating point precision error occurs:
https://floating-point-gui.de/errors/comparison/

Answer 2

If a fractional number is written without the f suffix, then it is a double type precision, so you are trying to compare two different precision classes, which naturally gives false.
Debug:
float a=1.1;
if (a==1.1f) printf("santosh");

Answer 3

// Try it
if (a==(float)1.1)