/in/foo.c:1:1: error: unknown type name 'var'; did you mean 'char'?
 var
 ^~~
 char
/in/foo.c:2:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
   n,k,i,o,t:longint;
            ^
/in/foo.c:3:1: error: unknown type name 'begin'
 begin
 ^~~~~
/in/foo.c:4:3: warning: parameter names (without types) in function declaration
   read(n,k);
   ^~~~
/in/foo.c:5:3: error: expected identifier or '(' before 'for'
   for i:=1 to n do
   ^~~
/in/foo.c:8:7: error: expected identifier or '(' before 'while'
       while o<>0 do
       ^~~~~
/in/foo.c:11:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before ':' token
           o:=o div 10;
            ^
/in/foo.c:12:9: warning: data definition has no type or storage class
         end;
         ^~~
/in/foo.c:12:9: warning: type defaults to 'int' in declaration of 'end' [-Wimplicit-int]
/in/foo.c:13:5: warning: data definition has no type or storage class
     end;
     ^~~
/in/foo.c:13:5: warning: type defaults to 'int' in declaration of 'end' [-Wimplicit-int]
/in/foo.c:14:3: warning: data definition has no type or storage class
   write(t);
   ^~~~~
/in/foo.c:14:3: warning: type defaults to 'int' in declaration of 'write' [-Wimplicit-int]
/in/foo.c:14:3: warning: parameter names (without types) in function declaration
/in/foo.c:15:4: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
 end.
    ^