/u/biwu/puti-zi.lpc:72:1: warning: Unused local variable 'add_skill'
   72 | }
      | ^
/u/biwu/puti-zi.lpc:72:1: warning: Unused local variable 'improve'
   72 | }
      | ^
/u/biwu/jindan.lpc:175:1: warning: Unused local variable 'i'
  175 | }
      | ^
