d09 part one

d09/exemple1.txt

@@ -0,0 +1,3 @@
+0 3 6 9 12 15
+1 3 6 10 15 21
+10 13 16 21 30 45

d09/run1.py

@@ -0,0 +1,20 @@
+import sys
+
+L = sys.stdin.read().splitlines()
+S = 0
+for report in L:
+    l = [int(r) for r in report.split(' ')]
+    m = list(l)
+    latest=[]
+    latest.append(m[-1])
+
+    while not all(v == 0 for v in l):
+        m = []
+        for i in range(0,len(l)-1):
+            m.append(l[i+1] - l[i])
+            
+        latest.append(m[-1])
+        l = list(m)
+    S+=sum(latest)
+
+print(S)