/in/foo.cc: In function 'int main()':
/in/foo.cc:9:9: error: 'whlie' was not declared in this scope
    9 |         whlie(i<n)
      |         ^~~~~
/in/foo.cc:8:13: warning: unused variable 'a' [-Wunused-variable]
    8 |         int a=0,b=1,i=1;
      |             ^
/in/foo.cc:8:17: warning: unused variable 'b' [-Wunused-variable]
    8 |         int a=0,b=1,i=1;
      |                 ^