day 8 implementation in c++ (#95)

Author: dhruv-gupta14

day8/Cpp/day8.cpp

@@ -0,0 +1,48 @@
+/*
+* @author : dhruv-gupta14
+* @date : 31/12/2018
+*/
+
+#include<bits/stdc++.h> 
+using namespace std; 
+  
+int min(int x, int y, int z) 
+{ 
+    return min(min(x, y), z); 
+} 
+  
+int levenshtein_distance(string str1, string str2, int m, int n) 
+{ 
+    int ld[m+1][n+1]; 
+  
+    for (int i=0; i<=m; i++) 
+    { 
+        for (int j=0; j<=n; j++) 
+        { 
+            if (i==0) 
+                ld[i][j] = j;
+  
+            else if (j==0) 
+                ld[i][j] = i;
+  
+ 
+            else if (str1[i-1] == str2[j-1]) 
+                ld[i][j] = ld[i-1][j-1]; 
+  
+            else
+                ld[i][j] = 1 + min(ld[i][j-1], ld[i-1][j], ld[i-1][j-1]);  
+        } 
+    } 
+  
+    return ld[m][n]; 
+} 
+  
+int main() 
+{ 
+    string str1,str2;
+    cin >> str1 >> str2;
+  
+    cout << levenshtein_distance(str1, str2, str1.length(), str2.length()); 
+  
+    return 0; 
+}

day8/README.md

@@ -97,4 +97,60 @@ function minEditDist (str1, str2) {
 
 console.log(minEditDist ('abcdefgs', 'agced'));
 console.log(minEditDist('kitten', 'sitting'));
-```
+```
+
+
+### Cpp Implementation
+
+### [Solution 1](./Cpp/day8.cpp)
+
+```cpp
+/*
+* @author : dhruv-gupta14
+* @date : 31/12/2018
+*/
+
+#include<bits/stdc++.h> 
+using namespace std; 
+  
+int min(int x, int y, int z) 
+{ 
+    return min(min(x, y), z); 
+} 
+  
+int levenshtein_distance(string str1, string str2, int m, int n) 
+{ 
+    int ld[m+1][n+1]; 
+  
+    for (int i=0; i<=m; i++) 
+    { 
+        for (int j=0; j<=n; j++) 
+        { 
+            if (i==0) 
+                ld[i][j] = j;
+  
+            else if (j==0) 
+                ld[i][j] = i;
+  
+ 
+            else if (str1[i-1] == str2[j-1]) 
+                ld[i][j] = ld[i-1][j-1]; 
+  
+            else
+                ld[i][j] = 1 + min(ld[i][j-1], ld[i-1][j], ld[i-1][j-1]);  
+        } 
+    } 
+  
+    return ld[m][n]; 
+} 
+  
+int main() 
+{ 
+    string str1,str2;
+    cin >> str1 >> str2;
+  
+    cout << levenshtein_distance(str1, str2, str1.length(), str2.length()); 
+  
+    return 0; 
+}
+```