From 2a0339dc47e77afd42c070c883eafd406195a33a Mon Sep 17 00:00:00 2001
From: KiritoTRw <3021577574@qq.com>
Date: Wed, 27 Apr 2016 18:41:12 +0800
Subject: [PATCH] Create 1640.cpp

---
 QUSTOJ/1640.cpp | 112 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 QUSTOJ/1640.cpp

diff --git a/QUSTOJ/1640.cpp b/QUSTOJ/1640.cpp
new file mode 100644
index 0000000..47c3865
--- /dev/null
+++ b/QUSTOJ/1640.cpp
@@ -0,0 +1,112 @@
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+using namespace std;
+//We have to say this is a mash-up of terrible code. But at least, it solves the problem.
+typedef struct
+{
+    double x,y;
+} point;
+typedef struct
+{
+    double k,b;
+} line_s;
+point inc[3];
+line_s line[3];
+int main()
+{
+    int x,y;
+    int count=0;
+    while(scanf("%lf %lf %lf %lf %lf %lf",&inc[0].x,&inc[0].y,&inc[1].x,&inc[1].y,&inc[2].x,&inc[2].y)==6)
+    {
+        line[0].k=(inc[1].y-inc[0].y)/(inc[1].x-inc[0].x);
+        line[0].b=inc[0].y-line[0].k*inc[0].x;
+        line[1].k=(inc[2].y-inc[1].y)/(inc[2].x-inc[1].x);
+        line[1].b=inc[1].y-line[1].k*inc[1].x;
+        line[2].k=(inc[0].y-inc[2].y)/(inc[0].x-inc[2].x);
+        line[2].b=inc[2].y-line[2].k*inc[2].x;
+        if(!(inc[0].x!=inc[1].x&&inc[1].x!=inc[2].x&&inc[0].x!=inc[2].x))
+        {
+            if(inc[0].x==inc[1].x)
+            {
+                count=0;
+                for(x=1; x<100; x++)
+                {
+                    for(y=1; y<100; y++)
+                    {
+                        if((x-inc[0].x)*(inc[2].x-inc[0].x)>=0)
+                        {
+                            if((y-line[1].k*x-line[1].b)*(inc[0].y-line[1].k*inc[0].x-line[1].b)>=0)
+                            {
+                                if((y-line[2].k*x-line[2].b)*(inc[1].y-line[2].k*inc[1].x-line[2].b)>=0)
+                                {
+                                    count++;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            else if(inc[1].x==inc[2].x)
+            {
+                count=0;
+                for(x=1; x<100; x++)
+                {
+                    for(y=1; y<100; y++)
+                    {
+                        if((x-inc[1].x)*(inc[0].x-inc[1].x)>=0)
+                        {
+                            if((y-line[0].k*x-line[0].b)*(inc[2].y-line[0].k*inc[2].x-line[0].b)>=0)
+                            {
+                                if((y-line[2].k*x-line[2].b)*(inc[1].y-line[2].k*inc[1].x-line[2].b)>=0)
+                                {
+                                    count++;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            else if(inc[2].x==inc[0].x)
+            {
+                count=0;
+                for(x=1; x<100; x++)
+                {
+                    for(y=1; y<100; y++)
+                    {
+                        if((x-inc[2].x)*(inc[1].x-inc[2].x)>=0)
+                        {
+                            if((y-line[0].k*x-line[0].b)*(inc[2].y-line[0].k*inc[2].x-line[0].b)>=0)
+                            {
+                                if((y-line[1].k*x-line[1].b)*(inc[0].y-line[1].k*inc[0].x-line[1].b)>=0)
+                                {
+                                    count++;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            printf("%d\n",count);
+            continue;
+        }
+        count=0;
+        for(x=1; x<100; x++)
+        {
+            for(y=1; y<100; y++)
+            {
+                if((y-line[0].k*x-line[0].b)*(inc[2].y-line[0].k*inc[2].x-line[0].b)>=0)
+                {
+                    if((y-line[1].k*x-line[1].b)*(inc[0].y-line[1].k*inc[0].x-line[1].b)>=0)
+                    {
+                        if((y-line[2].k*x-line[2].b)*(inc[1].y-line[2].k*inc[1].x-line[2].b)>=0)
+                        {
+                            count++;
+                        }
+                    }
+                }
+            }
+        }
+        printf("%d\n",count);
+    }
+}