foo.cc: In function ‘int main()’:
foo.cc:8:22: error: expected ‘;’ before ‘for’
    8 |                 cnt=0
      |                      ^
      |                      ;
    9 |                 for(i=1;i<=n;i++)
      |                 ~~~   
foo.cc:9:26: warning: statement has no effect [-Wunused-value]
    9 |                 for(i=1;i<=n;i++)
      |                         ~^~~
foo.cc:9:33: error: expected ‘;’ before ‘)’ token
    9 |                 for(i=1;i<=n;i++)
      |                                 ^
      |                                 ;
foo.cc:15:25: error: ‘cout’ was not declared in this scope
   15 |                         cout<<n<<"  ";
      |                         ^~~~
foo.cc:2:1: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
    1 | #include <stdio.h>
  +++ |+#include <iostream>
    2 | using namespace std;