Data commit

Task/Sudoku/Python/sudoku.py

@@ -0,0 +1,83 @@
+def initiate():
+    box.append([0, 1, 2, 9, 10, 11, 18, 19, 20])
+    box.append([3, 4, 5, 12, 13, 14, 21, 22, 23])
+    box.append([6, 7, 8, 15, 16, 17, 24, 25, 26])
+    box.append([27, 28, 29, 36, 37, 38, 45, 46, 47])
+    box.append([30, 31, 32, 39, 40, 41, 48, 49, 50])
+    box.append([33, 34, 35, 42, 43, 44, 51, 52, 53])
+    box.append([54, 55, 56, 63, 64, 65, 72, 73, 74])
+    box.append([57, 58, 59, 66, 67, 68, 75, 76, 77])
+    box.append([60, 61, 62, 69, 70, 71, 78, 79, 80])
+    for i in range(0, 81, 9):
+        row.append(range(i, i+9))
+    for i in range(9):
+        column.append(range(i, 80+i, 9))
+
+def valid(n, pos):
+    current_row = pos/9
+    current_col = pos%9
+    current_box = (current_row/3)*3 + (current_col/3)
+    for i in row[current_row]:
+        if (grid[i] == n):
+            return False
+    for i in column[current_col]:
+        if (grid[i] == n):
+            return False
+    for i in box[current_box]:
+        if (grid[i] == n):
+            return False
+    return True
+
+def solve():
+    i = 0
+    proceed = 1
+    while(i < 81):
+        if given[i]:
+            if proceed:
+                    i += 1
+            else:
+                i -= 1
+        else:
+            n = grid[i]
+            prev = grid[i]
+            while(n < 9):
+              if (n < 9):
+                  n += 1
+              if valid(n, i):
+                  grid[i] = n
+                  proceed = 1
+                  break
+            if (grid[i] == prev):
+               grid[i] = 0
+               proceed = 0
+            if proceed:
+               i += 1
+            else:
+               i -=1
+
+def inputs():
+    nextt = 'T'
+    number = 0
+    pos = 0
+    while(not(nextt == 'N' or nextt == 'n')):
+        print "Enter the position:",
+        pos = int(raw_input())
+        given[pos - 1] = True
+        print "Enter the numerical:",
+        number = int(raw_input())
+        grid[pos - 1] = number
+        print "Do you want to enter another given?(Y, for yes: N, for no)"
+        nextt = raw_input()
+
+
+grid = [0]*81
+given = [False]*81
+box = []
+row = []
+column = []
+initiate()
+inputs()
+solve()
+for i in range(9):
+    print grid[i*9:i*9+9]
+raw_input()