2080 : A+B or A-B(点击左侧标题进入zznu原题页面) 时间限制:1 Sec 内存限制:0 MiB提交:8 答案正确:3 提交 状态 讨论区 题目描述 Give you three strings s1, s2 and s3. These strings contain only capital letters A,B,C,D,E. The letters that appear in the string represent a number from 0 to 9.Each…