/in/foo.c: In function 'sup':
/in/foo.c:6:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   for(int i=2;i<=j;i++)
   ^~~
/in/foo.c:9:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
    if(j==1)
    ^~