/in/foo.c: In function 'fun':
/in/foo.c:7:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
 for ( j=0;j<n-1;j++ )
 ^~~
/in/foo.c:9:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
    a[n-1]=k; }
    ^
/in/foo.c: At top level:
/in/foo.c:11:6: warning: return type of 'main' is not 'int' [-Wmain]
 void main() {
      ^~~~