Initial data commit

Task/Rep-string/C/rep-string-2.c

@@ -0,0 +1,18 @@
+// strstr : Returns a pointer to the first occurrence of str2 in str1, or a null pointer if str2 is not part of str1.
+// size_t is an unsigned integer typ
+// lokks for the shortest substring
+int repstr(char *str)
+{
+    if (!str) return 0; // if empty input
+
+    size_t sl = 1;
+    size_t sl_max = strlen(str) ;
+
+    while (sl < sl_max) {
+        if (strstr(str, str + sl) == str) // How it works ???? It checks the whole string str
+        	return sl;
+        ++sl;
+    }
+
+    return 0;
+}