Edit_distance.cpp

Dynamic Programming/Edit distance

@@ -0,0 +1,35 @@
+class Solution {
+public:
+    int minDistance(string w, string s) {
+        int n=w.length();int m=s.length();
+
+        int dp[n+1][m+1];
+        dp[0][0]=0;
+        for(int i=0;i<=n;i++)
+        {
+            for(int j=0;j<=m;j++)
+            {
+                if(i==0)
+                {
+                    dp[i][j]=j;
+                }
+                else if(j==0)
+                {
+                    dp[i][j]=i;
+                }
+                else if(w[i-1]!=s[j-1])
+                {
+                    dp[i][j]=1+min(dp[i-1][j-1],min(dp[i-1][j], dp[i][j-1]));
+                }
+                else
+                {
+                    dp[i][j]=dp[i-1][j-1];
+                }
+            }
+        }
+
+        return dp[n][m];
+
+
+    }
+};