prog.c:2:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
main()
^
prog.c:6:16: error: use of undeclared identifier 'e'
if(i!=0||v!=0||e!=0)
^
prog.c:9:1: warning: implicit declaration of function 'Printf' is invalid in C99 [-Wimplicit-function-declaration]
Printf("%d",c);
^
2 warnings and 1 error generated.