src.c:1:4: error: expected expression before 'int'
n1=int(imput(''))
^
src.c:1:14: error: empty character constant
n1=int(imput(''))
^
src.c:2:14: error: empty character constant
n2=int(imput(''))
^
src.c:3:14: error: empty character constant
n3=int(imput(''))
^