Accepted
/usr/bin/ld.bfd: warning: /out/link.res contains output sections; did you forget -T?
代码
var n,i,a,b:longint;
sum:double;
begin
readln(n);
sum:=0;
for i:=1 to n do begin
readln(a,b);
sum:=sum+(a*b)/10
end;
writeln(sum:0:2);
close(input);close(output);
end.