格式修改

20200519053-work1.py

@@ -26,28 +26,30 @@ print('''
 3. Levenshetein string distance
 3. Levenshetein string distance
 ''')
 ''')
 
 
-stra = input('input first string:')
-strb = input('input second string:')
-arra = []
-arrb = []
-for c in stra:
+def edit_dist(stra, strb):
+    arra = []
+    arrb = []
+    for c in stra:
         arra.append(c)
         arra.append(c)
-for c in strb:
+    for c in strb:
         arrb.append(c)
         arrb.append(c)
-lena = len(arra)
-lenb = len(arrb)
-lenboud = max(lena,lenb)
-arrf = [[0 for i in range(0,lenboud+2)]for i in range(0,lenboud+2)]
-for i in range(1,lenboud+2):
+    lena = len(arra)
+    lenb = len(arrb)
+    lenboud = max(lena,lenb)
+    arrf = [[0 for i in range(0,lenboud+2)]for i in range(0,lenboud+2)]
+    for i in range(1,lenboud+2):
         arrf[i][0]=i
         arrf[i][0]=i
         arrf[0][i]=i
         arrf[0][i]=i
-for i in range(1,lena+1):
+    for i in range(1,lena+1):
         for j in range(1,lenb+1):
         for j in range(1,lenb+1):
             if (arra[i-1]==arrb[j-1]):
             if (arra[i-1]==arrb[j-1]):
                 arrf[i][j]=arrf[i-1][j-1]
                 arrf[i][j]=arrf[i-1][j-1]
             else:
             else:
                 arrf[i][j]=min(arrf[i][j-1],min(arrf[i-1][j],arrf[i-1][j-1]))+1
                 arrf[i][j]=min(arrf[i][j-1],min(arrf[i-1][j],arrf[i-1][j-1]))+1
-print('Levenshetein string distance = ',arrf[lena][lenb])
+    print('Levenshetein string distance = ',arrf[lena][lenb])
+str1 = input('input first string:')
+str2 = input('input second string:')
+edit_dist(str1,str2)
 
 
 print('''
 print('''
 4. Nontechnical problem
 4. Nontechnical problem