Commit 79bcda8

zhangzz2015gitbook-bot

authored and

committed

1 parent f55d977 commit 79bcda8Copy full SHA for 79bcda8

File tree

+51

-0

lines changed

+51

-0

lines changed

Lines changed: 1 addition & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -29,6 +29,7 @@`
`29`	`29`	`* [二叉搜索树](advanced\_algorithm/binary\_search\_tree.md)`
`30`	`30`	`* [回溯法](advanced\_algorithm/backtrack.md)`
`31`	`31`	`* [其他的技巧](suan-fa-si-wei/qi-ta-de-ji-qiao.md)`
	`32`	`+* [字符串操作](suan-fa-si-wei/zi-fu-chuan-cao-zuo.md)`
`32`	`33`
`33`	`34`	`## 面试公司`
`34`	`35`

Lines changed: 50 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,50 @@`
	`1`	`+# 字符串操作`
	`2`	`+`
	`3`	`+### 字符串匹配方法`
	`4`	`+`
	`5`	`+#### KMP方法`
	`6`	`+`
	`7`	`+#### Rolling hash方法`
	`8`	`+`
	`9`	+```cpp
	`10`	`+// Some code`
	`11`	`+int hasDup(string& s, int val)`
	`12`	`+{`
	`13`	`+]et * 26 + s[i];`
	`14`	`+ ret = ret%prim;`
	`15`	`+ baseVal *=26;`
	`16`	`+ baseVal = baseVal%prim;`
	`17`	`+ }`
	`18`	`+`
	`19`	`+ record[ret].push_back(0);`
	`20`	`+ for(int i = val ; i< s.size(); i++)`
	`21`	`+ {`
	`22`	`+ ret = (ret26 + s[i] - baseVals[i-val]%prim + prim)%prim;`
	`23`	`+ auto it = record.find(ret);`
	`24`	`+ if(it!=record.end())`
	`25`	`+ {`
	`26`	`+ for(int j=0; j< (*it).second.size(); j++)`
	`27`	`+ {`
	`28`	`+ if(isSameString(s, (*it).second[j], i-val+1, val))`
	`29`	`+ return (*it).second[j];`
	`30`	`+ }`
	`31`	`+ record[ret].push_back(i-val+1);`
	`32`	`+ }`
	`33`	`+ else`
	`34`	`+ {`
	`35`	`+ record[ret].push_back(i-val+1);`
	`36`	`+ }`
	`37`	`+ }`
	`38`	`+ return -1;`
	`39`	`+ }`
	`40`	`+`
	`41`	`+ bool isSameString(string& s, int s1, int s2, int size)`
	`42`	`+ {`
	`43`	`+ for(int i=0; i< size; i++)`
	`44`	`+ {`
	`45`	`+ if(s[s1+i] != s[s2+i])`
	`46`	`+ return false;`
	`47`	`+ }`
	`48`	`+ return true;`
	`49`	`+ }`
	`50`	+```

Comments

(0)