C语言 | Leetcode C语言题解之第557题反转字符串中的单词III

题目：

题解：

char* reverseWords(char* s) {
    int length = strlen(s);
    char* ret = (char*)malloc(sizeof(char) * (length + 1));
    ret[length] = 0;
    int i = 0;
    while (i < length) {
        int start = i;
        while (i < length && s[i] != ' ') {
            i++;
        }
        for (int p = start; p < i; p++) {
            ret[p] = s[start + i - 1 - p];
        }
        while (i < length && s[i] == ' ') {
            ret[i] = ' ';
            i++;
        }
    }
    return ret;
}