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lengthOfLastWord.cc
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lengthOfLastWord.cc
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#include <iostream>
using namespace std;
class Solution {
public:
int lengthOfLastWord(const char *s) {
if (*s == '\0') return 0;
const char *str = s;
int len = 0;
bool space = false;
while (*str != '\0') {
if (space) {
len = 0;
space = false;
}
while (*str != '\0' && *str != ' ') {
len++;
str++;
}
if (*str == '\0') break;
while (*str == ' ') {
space = true;
str++;
}
}
return len;
}
//-------------------------------------//
int lengthOfLastWord(const char *s) {
int len = 0;
if (!s)
return len;
int i = 0;
while (s[i] == ' ') i++;
while (s[i] != ' ' && s[i] != '\0') {
len++;
i++;
}
if (s[i] == '\0')
return len;
else {
int tmp = lengthOfLastWord(s + i + 1);
if (tmp == 0)
return len;
else
return tmp;
}
}
};
int main(int argc, char **argv) {
Solution sol;
cout << sol.lengthOfLastWord("Hello World ") << endl;
}