Day 7 - C (#83)

* Create oneEditAway.c

* Update README.md

Author: ashwek

day7/C/oneEditAway.c

@@ -0,0 +1,55 @@
+/* *
+   * @author : ashwek
+   * @date : 29/12/2018
+   */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+int oneEditAway(char Str1[], char Str2[]){
+
+    int l1 = strlen(Str1), l2 = strlen(Str2);
+    int i=0, j=0, diff=0;
+
+    if( abs(l1 - l2) > 1 )
+        return 0;
+
+    while( diff<2 && (i < l1) && (j < l2) ){
+
+        if( Str1[i] == Str2[j] ){
+            i++;
+            j++;
+        }
+        else{
+            diff++;
+            if( l1 == l2 ){
+                i++;
+                j++;
+            }
+            else if( l1 < l2 )
+                j++;
+            else
+                i++;
+        }
+    }
+
+    return diff < 2;
+
+}
+
+void main(){
+
+    char Str1[20];
+    char Str2[20];
+
+    printf("Enter string 1 = ");
+    scanf("%s", Str1);
+    printf("Enter string 2 = ");
+    scanf("%s", Str2);
+
+    printf("%s & %s are ", Str1, Str2);
+    if( oneEditAway(Str1, Str2) == 0 )
+        printf("NOT ");
+    printf("one edit away\n");
+}

day7/README.md

@@ -455,4 +455,64 @@ int main()
     }
     return 0;
 }
-```
+```
+
+### [Solution 2](./C/oneEditAway.c)
+
+```c
+/* *
+   * @author : ashwek
+   * @date : 29/12/2018
+   */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+int oneEditAway(char Str1[], char Str2[]){
+
+    int l1 = strlen(Str1), l2 = strlen(Str2);
+    int i=0, j=0, diff=0;
+
+    if( abs(l1 - l2) > 1 )
+        return 0;
+
+    while( diff<2 && (i < l1) && (j < l2) ){
+
+        if( Str1[i] == Str2[j] ){
+            i++;
+            j++;
+        }
+        else{
+            diff++;
+            if( l1 == l2 ){
+                i++;
+                j++;
+            }
+            else if( l1 < l2 )
+                j++;
+            else
+                i++;
+        }
+    }
+
+    return diff < 2;
+
+}
+
+void main(){
+
+    char Str1[20];
+    char Str2[20];
+
+    printf("Enter string 1 = ");
+    scanf("%s", Str1);
+    printf("Enter string 2 = ");
+    scanf("%s", Str2);
+
+    printf("%s & %s are ", Str1, Str2);
+    if( oneEditAway(Str1, Str2) == 0 )
+        printf("NOT ");
+    printf("one edit away\n");
+}
+```