renamed files and exercise 1.2

Activity_3_python/exercises_3/exercise_3_1.py

@@ -0,0 +1,3 @@
+for i in range(1,11):
+    for y in range(1,11):
+        print(i, "x", y, "=", i*y)

Activity_3_python/exercises_3/exercise_3_2.py

@@ -0,0 +1,5 @@
+a = int(input("Nombre de notes ? "))
+note = 0
+for i in range(a):
+    note += float(input("-->"))
+print(f"Moyenne : {note/a}")

Activity_3_python/exercises_3/exercise_3_3_1.py

@@ -0,0 +1,8 @@
+a = input("Entrer la chaîne : ")
+b = 0
+
+for i in range(len(a)):
+    if a[i] == "Z" or a[i] == "z":
+        b += 1
+
+print(f"Résultat : {b}")

Activity_3_python/exercises_3/exercise_3_3_2.py

@@ -0,0 +1,2 @@
+a = input("Entrer la chaîne : ")
+print("Résultat : ",a.count("z") + a.count("Z"))

Activity_3_python/exercises_3/exercise_3_4.py

@@ -0,0 +1,5 @@
+import time
+
+while True:
+    print("Heure courante", time.strftime("%H:%M:%S"))
+    time.sleep(1)

Activity_3_python/exercises_3/exercise_3_5.py

@@ -0,0 +1,16 @@
+import random
+
+nombre = random.randint(1,100)
+coup = 0
+a = None
+print("Le jeu consiste à deviner un nombre entre 1 et 100 :")
+
+while a != nombre:
+    coup += 1
+    a = int(input("--> "))
+    if a < nombre:
+        print("trop petit !")
+    elif a > nombre:
+        print("trop grand !")
+    else:
+        print(f"Gagné en {coup} coups !")

Activity_3_python/exercises_3/exercise_3_6_1.py

@@ -0,0 +1,16 @@
+msg = input("Message à coder ? ")
+res = ""
+alph = 'abcdefghijklmnopqrstuvwxyz'
+
+for i in msg:
+    if i == ' ' or i =="'":
+        res += i
+        
+    else:
+        p = alph.find(i)
+        t = p + 3
+        if t > 25:
+            t = t - 26
+        res += alph[t]
+
+print(res)

Activity_3_python/exercises_3/exercise_3_6_2.py

@@ -0,0 +1,16 @@
+msg = input("Message à coder ? ")
+res = ""
+alph = 'abcdefghijklmnopqrstuvwxyz'
+
+for i in msg:
+    if i == ' ' or i =="'":
+        res += i
+        
+    else:
+        p = alph.find(i)
+        t = p - 3
+        if t < 0:
+            t = 26 + t
+        res += alph[t]
+
+print(res)

Activity_3_python/exercises_3/exercise_3_7.py

@@ -0,0 +1,7 @@
+u = int(input("Valeur initiale ?"))
+jusque = int(input("Jusqu'à quel rang ?"))
+
+print(0, u)
+for i in range(1,jusque+1):
+    u = u/2 + 1/u
+    print(i, u)

Activity_3_python/exercises_3/exercise_3_8.py

@@ -0,0 +1,8 @@
+from math import sqrt
+
+res = 0
+for i in range(1,1001):
+    res = 1+res/i
+    print(i, res)
+
+print(1 + sqrt(5)/2)

Activity_3_python/exercises_3/exercise_3_9_1.py

@@ -0,0 +1,12 @@
+nbr = int(input("Nombre ? "))
+pre = True
+
+for i in range(2,11):
+    if i != nbr:
+        if nbr % i == 0:
+            pre = False
+
+if pre:
+    print("nombre premier !")
+else:
+    print("nombre non premier !")

Activity_3_python/exercises_3/exercise_3_9_2.py

@@ -0,0 +1,8 @@
+nbr = int(input("Nombre ? "))
+nbr_pre = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199]
+
+while nbr != 0:
+    for i in nbr_pre:
+        if nbr % i == 0:
+            nbr = nbr/i
+            print(i)