From 0496e70793e5611f5135fb221fb7208d1dbe26e4 Mon Sep 17 00:00:00 2001
From: Kirito <1362050620@qq.com>
Date: Tue, 28 Jun 2016 14:22:18 +0800
Subject: [PATCH] Create 1765.c

---
 QUSTOJ/1765.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 QUSTOJ/1765.c

diff --git a/QUSTOJ/1765.c b/QUSTOJ/1765.c
new file mode 100644
index 0000000..4ff7ab4
--- /dev/null
+++ b/QUSTOJ/1765.c
@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef struct
+{
+    double L,R;
+}INUM;
+char str[1024];
+char* format(INUM i)
+{
+    sprintf(str,"(%.2f%+.2fi)",i.L,i.R);
+    return str;
+}
+int main()
+{
+    INUM a,b;
+    scanf("%lf %lf %lf %lf",&a.L,&a.R,&b.L,&b.R);
+    INUM ans;
+    ans.L=a.L+b.L;
+    ans.R=a.R+b.R;
+    printf(format(a));
+    printf("+");
+    printf(format(b));
+    printf("=");
+    printf(format(ans));
+    printf("\n");
+
+    ans.L=a.L-b.L;
+    ans.R=a.R-b.R;
+    printf(format(a));
+    printf("-");
+    printf(format(b));
+    printf("=");
+    printf(format(ans));
+    printf("\n");
+
+    ans.L=a.L*b.L-a.R*b.R;
+    ans.R=a.L*b.R+a.R*b.L;
+    printf(format(a));
+    printf("*");
+    printf(format(b));
+    printf("=");
+    printf(format(ans));
+    printf("\n");
+
+    ans.L=a.L*b.L+a.R*b.R;
+    ans.L/=b.L*b.L+b.R*b.R;
+    ans.R=a.R*b.L-a.L*b.R;
+    ans.R/=b.L*b.L+b.R*b.R;
+    printf(format(a));
+    printf("/");
+    printf(format(b));
+    printf("=");
+    printf(format(ans));
+    printf("\n");
+
+    return 0;
+}