done

soal1.py

@@ -0,0 +1,18 @@
+n = 9
+ar = [10, 20, 20, 10, 10, 30, 50, 10, 20]
+
+
+def sockMerchant(n, ar):
+    count = 0
+    dict = {}
+
+    for i in ar:
+        dict[i] = dict.get(i, 0) + 1
+
+    for i in dict.keys():
+        count += dict[i] // 2
+
+    return count
+
+
+print(sockMerchant(n, ar))

soal2.py

@@ -0,0 +1,18 @@
+k = 2
+a = [0, -1, 2, 1]
+
+
+def angryProfessor(k, a):
+    on_time = 0
+
+    for i in range(len(a)):
+        if a[i] <= 0:
+            on_time += 1
+
+    if on_time >= k:
+        return "NO"
+    else:
+        return "YES"
+
+
+print(angryProfessor(k, a))

soal3.py

@@ -0,0 +1,16 @@
+import math
+
+arr = [1, 2, 3, 5, 4, 4, 3, 2, 1, 3, 4]
+
+
+def migratorBirds(arr):
+    bird_count = [0]*len(arr)
+    for i in arr:
+        bird_count[i] += 1
+    print(bird_count)
+
+    maks = max(bird_count)
+    return bird_count.index(maks)
+
+
+print(migratorBirds(arr))

soal4.py

@@ -0,0 +1,15 @@
+s = 'aba'  # len = 3
+n = 10
+
+# abaabaabaa
+
+
+def repeatedString(s, n):
+    s_awal = s.count('a') * (n // len(s))  # aaaaaa
+    s_sisa = s[:(n % len(s))].count('a')  # a
+    # print(s_awal)
+    # print(s_sisa)
+    return s_awal + s_sisa
+
+
+print(repeatedString(s, n))