ADD file via upload

output.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+void output(int board[9][9]){
+    int i;
+    for(i = 0;i < 9 ;i++){
+        if(i %3 == 0){
+            printf("|-----------------------|\n");
+        }
+        printf("| %d %d %d | %d %d %d | %d %d %d |\n",
+        board[i][0],board[i][1],board[i][2],board[i][3],board[i][4],board[i][5],board[i][6],board[i][7],board[i][8]);
+    }
+    printf("|-----------------------|\n");
+}