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Length of Last Word输出最后单词的字母个数
Given a string s consists of upper/lower-case alphabets and empty space characters ‘ ‘
, return the length of last word in the string.
If the last word does not exist, return 0.
Note: A word is defined as a character sequence consists of non-space characters only.
For example,
Given s = "Hello World"
,
return 5
.
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Stringclass Solution {public: int lengthOfLastWord(const char *s) { if(s==NULL) return 0; int len=0; const char *start = s; while(*s!=‘\0‘){ if(*s==‘ ‘){ int le=s-start; if(le!=0) len=le; start=s+1; s++; }else s++; } int le=s-start; if(le!=0) len=le; return len; }};
Length of Last Word输出最后单词的字母个数
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