Problem ID Title Solved Submit Pass Rate
3090预算够吗286841.176%
3109成绩等级435578.182%
3110月的天数275648.214%
3111选学段415673.214%
3112幼儿园入学487068.571%
3559输油管道问题4580.000%
5344NOIP2007提高组第1题 统计数字33100.000%