From 77ae8ac9756a3e22a52612d6827a2f6b86b80e85 Mon Sep 17 00:00:00 2001
From: Santo Cariotti <sancn@live.com>
Date: Fri, 28 Apr 2017 18:32:58 +0200
Subject: Added borsa in python (only numbers >= 0)

---
 python/borsa.py | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 python/borsa.py

diff --git a/python/borsa.py b/python/borsa.py
new file mode 100644
index 0000000..f62d12c
--- /dev/null
+++ b/python/borsa.py
@@ -0,0 +1,39 @@
+class ValoreNegativo(ValueError):
+    def __str__(self):
+        return 'Il valore non e\' maggiore di 0'
+
+a = []
+i = 0
+
+while i < 14:
+    try:
+        num = input()
+        if num < 0:
+            raise ValoreNegativo
+
+        a.append(num)
+        i += 1
+    except ValoreNegativo, e:
+        print(e)
+
+
+diff = i = 0
+tot = len(a)
+
+for i in range(tot):
+    minore = a[i]
+
+    for j in range(i, tot-1):
+        if a[j] == minore:
+            continue
+        elif a[j] > minore:
+            diffp = a[j] - minore
+
+        if diffp > diff and diffp > 0:
+            x = i
+            y = j
+            diff = diffp
+
+
+print('Ti conviene comprare a {} giorno {} e vendere a {} giorno {}'.format(a[x], x + 1, a[y], y + 1))
+print('Guadagneresti ' + str(diff))
\ No newline at end of file
-- 
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