题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2000
题目大意:仨字符从小到大排序
解题思路:
很水很水,需要注意的地方是如果用苦力(三个if)要注意正确写法是
if(x >= y){ t = x; x = y; y = t; } if(x >= z){ t = x; x = t; z = t; } if(y >= z){ t = y; y = z; z = t; }
或者
if(x > y){ t = x; x = y; y = t; } if(y > z){ t = y; y = z; z = t; } if(x > y){ t = x; x = y; y = t; }
如果写成
if(x >= y){t = x; x = y; y = t; } if(y >= z){t = y; y = t; z = t; } if(x >= z){t = x; x = z; z = t; }
是铁定过不了的,比如190,会变成109,而非019.