From 8a0a1f6acf8d1d0f91db135c0695115b112a162d Mon Sep 17 00:00:00 2001
From: p7cx2jokr <2160925370@qq.com>
Date: Wed, 6 Nov 2024 19:40:58 +0800
Subject: [PATCH] Delete 'file4.c'

---
 file4.c | 183 --------------------------------------------------------
 1 file changed, 183 deletions(-)
 delete mode 100644 file4.c

diff --git a/file4.c b/file4.c
deleted file mode 100644
index 55d3ae5..0000000
--- a/file4.c
+++ /dev/null
@@ -1,183 +0,0 @@
-#include <stdio.h>
-
-void print(int board[9][9]){
-	printf("|-----------------------|\n");
-	int i,j;
-	for(i=0;i<9;i++){
-		printf("| ");
-		for(j=0;j<9;j++){
-			if(board[i][j]==0) printf(". ");
-			else printf("%d ",board[i][j]);
-			if(j%3==2) printf("| ");
-		}
-		printf("\n");
-		if(i%3==2){
-			printf("|-----------------------|\n");
-		}
-	}
-}
-
-void check(int board[9][9]){
-	printf("The original Sudoku matrix:\n");
-	print(board);
-	int i,j,k;
-	
-	//�ж�ÿһ�������Ƿ��ظ� 
-	for(i=0;i<9;i++){
-		int cnt[10]={}; //ͳ��ÿ�����ֳ��ִ��� 
-		for(j=0;j<9;j++){
-			cnt[board[i][j]]++;
-		}
-		for(j=1;j<=9;j++){
-			if(cnt[j]>1){
-				printf("False:Invalid initial Sudoku matrix!\n");
-				printf("The number %d in the col %d has been used!\n",j,i+1);
-				return;
-			}
-		}
-	}
-	
-	//�ж�ÿһ�������Ƿ��ظ� 
-	for(i=0;i<9;i++){
-		int cnt[10]={}; //ͳ��ÿ�����ֳ��ִ���
-		for(j=0;j<9;j++){
-			cnt[board[j][i]]++;
-		}
-		for(j=1;j<=9;j++){
-			if(cnt[j]>1){
-				printf("False:Invalid initial Sudoku matrix!\n");
-				printf("The number %d in the row %d has been used!\n",j,i+1);
-				return;
-			}
-		}
-	}
-	
-	//�ж�ÿ���Ź��������Ƿ��ظ� 
-	for(k=0;k<9;k++){
-		int cnt[10]={}; //ͳ��ÿ�����ֳ��ִ���
-		//��ʼ��Ϊk/3*3 
-		for(i=k/3*3;i<k/3*3+3;i++){
-			//��ʼ��Ϊk%3*3 	
-			for(j=k%3*3;j<k%3*3+3;j++){
-				cnt[board[i][j]]++;
-			}
-		}
-		for(j=1;j<=9;j++){
-			if(cnt[j]>1){
-				printf("False:Invalid initial Sudoku matrix!\n");
-				printf("The number %d in the block %d has been used!\n",j,k+1);
-				return;
-			}
-		}
-	}
-	printf("True:Valid initial Sudoku matrix!\n");
-	return;
-}
-
-//����check_plus�������ж��Ƿ�Ϊ�������� 
-int check_plus(int board[9][9]){
-	int i,j,k;	
-	for(i=0;i<9;i++){
-		int cnt[10]={};
-		for(j=0;j<9;j++){
-			cnt[board[i][j]]++;
-		}
-		for(j=1;j<=9;j++){
-			if(cnt[j]>1){
-				return 0;
-			}
-		}
-	}
-	for(i=0;i<9;i++){
-		int cnt[10]={};
-		for(j=0;j<9;j++){
-			cnt[board[j][i]]++;
-		}
-		for(j=1;j<=9;j++){
-			if(cnt[j]>1){
-				return 0;
-			}
-		}
-	}
-	for(k=0;k<9;k++){
-		int cnt[10]={};
-		for(i=k/3*3;i<k/3*3+3;i++){	
-			for(j=k%3*3;j<k%3*3+3;j++){
-				cnt[board[i][j]]++;
-			}
-		}
-		for(j=1;j<=9;j++){
-			if(cnt[j]>1){
-				return 0;
-			}
-		}
-	}
-	return 1;
-}
-
-int solve(int board[9][9]){
-	int i,j;
-    for(i=0;i<9;i++){
-        for(j=0;j<9;j++){
-            if(board[i][j]==0){ //�ҵ������λ�� 
-				int num; //������д1~9
-				for(num=1;num<=9;num++){
-					board[i][j]=num;
-					//�������������ݹ���������� 
-					if(check_plus(board)){
-                        if(solve(board)){
-                            return 1; //�ɹ���д���ҵ�һ��� 
-                        }
-                    }
-                    board[i][j]=0; //�޽⣬����������һ����
-                }
-                return 0; //����������޷����㣬˵���޽� 
-            }
-        }
-    }
-}
-
-void final_step(int board[9][9]){
-	check(board);
-    if(solve(board)){
-        printf("The solution of Sudoku matrix:\n");
-        print(board);
-    }
-	else printf("No solution��\n");
-}
-
-int main(){
-	int board0[9][9] = {{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}};
-	int board1[9][9] = {{8, 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}};
-	int board2[9][9] = {{5, 2, 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}};
-
-    final_step(board0);
-    final_step(board1);
-    final_step(board2);
-
-    return 0;
-}