Sudoku Solver
Hardjavapythonccppjavascript
Given a partially filled 9x9 Sudoku board (empty cells are 0), fill every empty cell so that each row, each column and each 3x3 box contains the digits 1 to 9 exactly once. The puzzle has a unique solution.
Input Format
Nine lines, each containing 9 space-separated integers 0..9 (0 = empty).
Output Format
Print the solved board as 9 lines of 9 space-separated digits.
Example 1
Input
5 3 0 0 7 0 0 0 0 6 0 0 1 9 5 0 0 0 0 9 8 0 0 0 0 6 0 8 0 0 0 6 0 0 0 3 4 0 0 8 0 3 0 0 1 7 0 0 0 2 0 0 0 6 0 6 0 0 0 0 2 8 0 0 0 0 4 1 9 0 0 5 0 0 0 0 8 0 0 7 9
Output
5 3 4 6 7 8 9 1 2 6 7 2 1 9 5 3 4 8 1 9 8 3 4 2 5 6 7 8 5 9 7 6 1 4 2 3 4 2 6 8 5 3 7 9 1 7 1 3 9 2 4 8 5 6 9 6 1 5 3 7 2 8 4 2 8 7 4 1 9 6 3 5 3 4 5 2 8 6 1 7 9
Explanation: Every empty cell is filled while satisfying all Sudoku rules.
- The board is exactly 9x9 and has a unique solution.
Submit an attempt to unlock the solution. (Sign in first.)
Related Problems
- N QueensHard · java, python, c, cpp, javascriptSolve Problem
- Factorial Using RecursionEasy · java, python, c, cpp, javascriptSolve Problem
- Fibonacci NumberEasy · java, python, c, cpp, javascriptSolve Problem