1003-《等价表达式》（NOIP2005 第四题）
......................................\equal
......................................\.....\equal1.in
......................................\.....\equal1.out
......................................\.....\equal10.in
......................................\.....\equal10.out
......................................\.....\equal2.in
......................................\.....\equal2.out
......................................\.....\equal3.in
......................................\.....\equal3.out
......................................\.....\equal4.in
......................................\.....\equal4.out
......................................\.....\equal5.in
......................................\.....\equal5.out
......................................\.....\equal6.in
......................................\.....\equal6.out
......................................\.....\equal7.in
......................................\.....\equal7.out
......................................\.....\equal8.in
......................................\.....\equal8.out
......................................\.....\equal9.in
......................................\.....\equal9.out
......................................\equal.pas
......................................\《等价表达式》解题报告.doc
......................................\《等价表达式》问题描述.doc