From 4734ada571465beea7af0f252b791d2f495c1219 Mon Sep 17 00:00:00 2001
From: KiritoTRw <3021577574@qq.com>
Date: Thu, 28 Apr 2016 08:58:10 +0800
Subject: [PATCH] Create 1227.c

---
 QUSTOJ/1227.c | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 QUSTOJ/1227.c

diff --git a/QUSTOJ/1227.c b/QUSTOJ/1227.c
new file mode 100644
index 0000000..eaab5f3
--- /dev/null
+++ b/QUSTOJ/1227.c
@@ -0,0 +1,118 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+ 
+typedef struct
+{
+    char data;
+    int vis;
+}pack;
+ 
+pack screen[102][102];
+ 
+#define RIGHT 0
+#define DOWN 1
+#define LEFT 2
+#define UP 3
+ 
+void deal(int incmax)
+{
+    memset(screen,0,sizeof(pack)*102*102);
+    char letter='A';
+    int cx,cy,towards,i;
+    int times=incmax*incmax;
+    for(i=0;i<incmax+2;i++)
+    {
+        screen[0][i].vis=1;
+        screen[i][0].vis=1;
+        screen[incmax+1][i].vis=1;
+        screen[i][incmax+1].vis=1;
+    }
+    for(cx=1,cy=1,towards=RIGHT;times>0;times--)
+    {
+        screen[cx][cy].data=letter++;
+        screen[cx][cy].vis=1;
+        (letter>'Z')?(letter='A'):(NULL);
+        switch(towards)
+        {
+        case RIGHT:
+            {
+                if(screen[cx][cy+1].vis==1)
+                {
+                    towards++;
+                    cx++;
+                }
+                else
+                {
+                    cy++;
+                }
+                break;
+            }
+        case DOWN:
+            {
+                if(screen[cx+1][cy].vis==1)
+                {
+                    towards++;
+                    cy--;
+                }
+                else
+                {
+                    cx++;
+                }
+                break;
+            }
+        case LEFT:
+            {
+                if(screen[cx][cy-1].vis==1)
+                {
+                    towards++;
+                    cx--;
+                }
+                else
+                {
+                    cy--;
+                }
+                break;
+            }
+        case UP:
+            {
+                if(screen[cx-1][cy].vis==1)
+                {
+                    towards=0;
+                    cy++;
+                }
+                else
+                {
+                    cx--;
+                }
+                break;
+            }
+        }
+    }
+}
+ 
+void print_map(int incmax)
+{
+    int x,y;
+    for(x=1;x<incmax+1;x++)
+    {
+        for(y=1;y<incmax;y++)
+        {
+            printf("%c ",screen[x][y].data);
+        }
+        printf("%c\n",screen[x][y].data);
+    }
+}
+ 
+int main()
+{
+    int all,inc;
+    scanf("%d",&all);
+    for(;all>0;all--)
+    {
+        scanf("%d",&inc);
+        deal(inc);
+        print_map(inc);
+    }
+    return 0;
+}