src.c: In function 'main':
src.c:4:8: error: conflicting types for 'a'
float a,b;
^
src.c:3:6: note: previous definition of 'a' was here
{int a=1,b=2,sum;
^
src.c:4:10: error: conflicting types for 'b'
float a,b;
^
src.c:3:10: note: previous definition of 'b' was here
{int a=1,b=2,sum;
^
src.c: At top level:
src.c:8:1: error: expected identifier or '(' before 'return'
return(0)
^