/in/foo.c: In function 'main':
/in/foo.c:16:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    for(int i=n-1; i>=k; i--)
    ^~~
/in/foo.c:22:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     if(success==1)
     ^~