trois premiers jours

day2.py

@@ -0,0 +1,62 @@
+import numpy as np
+
+with open('day2.txt') as f:
+    l = [line.rstrip().split() for line in f]
+    
+# l = [[7, 6, 4, 2, 1],
+#     [1, 2, 7, 8, 9],
+#     [9, 7, 6, 2, 1],
+#     [1, 3, 2, 4, 5],
+#     [8, 6, 4, 4, 1],
+#     [1, 3, 6, 7, 9]]
+
+print(l)
+
+# l = np.loadtxt("day2.txt")
+
+def test_if_safe(diff,inc):
+    # inc = np.sign(diff)
+    if abs(diff) > 3 or abs(diff) == 0:
+        print("Trop grand")
+        return False
+    elif np.sign(inc) != np.sign(diff):
+        print("Changement de sens")
+        return False
+
+    return True
+
+def loop(list):
+    for k in range(len(list)-1):
+        diff2 = int(list[k+1])-int(list[k])
+        if k == 0:
+            inc2 = np.sign(diff2)
+        
+        print("diff = ", diff2)
+
+
+        safe2 = test_if_safe(diff2,inc2)
+        if not safe2 :
+            break
+        inc2 = np.sign(diff2)
+    print("safe in loop", safe2)
+    return safe2
+
+
+
+cnt = 0
+
+for report in l:
+    incs = []
+    inc = 0
+    
+    safe = True
+    print(report)
+    for k in range(len(report)):
+        report2 = report.copy()
+        report2.pop(k)
+        safe = loop(report2)
+        if safe : 
+            cnt+=1
+            break
+
+print("Cnt = ", cnt)