Add 58 in c language

c/58-length-of-the-last-word.c

@@ -0,0 +1,25 @@
+/*
+Given a string s consisting of words and spaces, return the length of the last word in the string.
+
+Space: O(1)
+Time: O(n)
+*/
+
+int lengthOfLastWord(char * s){
+ int last_space=-1; // Index of the last ' '
+ int last_word=0; // Length of the last word
+ int i;
+ for (i=0; s[i]!='\0'; i++) {
+ if (s[i]==' ') {
+ if (last_space != (i-1)) {
+ last_word = i-last_space -1;
+ }
+ last_space = i;
+ }
+ }
+ if (last_space == (i-1)) { // if the length wanted is already in last_word
+ return last_word;
+ } else {
+ return i-last_space-1;
+ }
+}