题目：

题解：

char * findLongestWord(char * s, char ** d, int dSize){char *result = "";int max = -1;for (int i = 0; i < dSize; ++i) {char *p = s, *q = d[i];int j = 0, k = 0;while (p[j] != '\0' && q[k] != '\0') {if (p[j] == q[k]) {++k;} ++j;}if (q[k] == '\0') {if (k > max) {max = k;result = q;} else if (k == max) {if (q[0] - result[0] < 0) {max = k;result = q;}} else {}}}return result;
}