python-fundamentals/33_excercise_python.py at main · yasinfitrah24-tech/python-fundamentals · GitHub

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# # 1. Robot FizzBuzz.
# for n in range(1, 31):
#     if n % 5 == 0 and n % 3 == 0:
#         print("robot jalan")
#     elif n % 3 == 0:
#         print("robot")
#     elif n % 5 == 0:
#         print("jalan")
#     else:
#         print(n)

# # 2. hitung_faktorial(n)
# def hitung_faktorial(angka):
#     hasil = 1
#     for i in range(1, angka + 1):
#         hasil *=  i
#     return hasil
# print(hitung_faktorial(5))

# # 3. statistik manual
# data = [80, 45, 92, 67, 30]

# def cari_max(angka):
#     hasil = angka[0]
#     for n in angka:
#         if n > hasil:
#             hasil = n
#     return hasil

# def cari_min(angka):
#     hasil = angka[0]
#     for n in angka:
#         if n < hasil:
#             hasil = n
#     return hasil

# def cari_sum(angka):
#     hasil = 0
#     for n in angka:
#         hasil += n
#     return hasil


# print(cari_max(data))
# print(cari_min(data))
# print(cari_sum(data))

# # 4. penghitung frekuensi karakter
# teks = "robotika"
# hitungan = {}
# for huruf in teks:
#     if huruf in hitungan:
#         hitungan[huruf] += 1
#     else:
#         hitungan[huruf] = 1
# print(hitungan)

# # 5. Class RekeningBank
# class RekeningBank:
#     def __init__ (self, nama, saldo):
#         self.nama = nama
#         self.saldo = saldo
#         self.riwayat = []

#     def setor(self, jumlah):
#         self.saldo += jumlah
#         self.riwayat.append(f"Disetorkan uang sebesar {jumlah}")

#     def tarik(self, jumlah):
#         if jumlah > self.saldo:
#             print("Saldo anda tidak mencukupi")
#         else:
#             self.saldo -= jumlah
#             self.riwayat.append(f"Ditarik uang sebesar {jumlah}")

#     def cek_saldo(self):
#          print(f"A.N {self.nama}, sisa saldo {self.saldo}")
#          print(f"riwayat: {self.riwayat}")

#     def __str__(self):
#         return f"A.N {self.nama}, sisa saldo {self.saldo}"

# atm1 = RekeningBank("Yasin", 1000000)

# atm1.tarik(10000000)
# atm1.cek_saldo()

# # 6. Cek baterai robot
# class Robot:
#     def __init__ (self, nama, baterai):
#         self.nama = nama
#         self.baterai = baterai
#         self.status = "idle"
#         self.riwayat = []

#     def jalan(self, langkah):
#         self.baterai -= langkah
#         self.status = "bergerak"
#         self.riwayat.append(f"jalan {langkah} langkah")

#     def lapor(self):
#         print(f"{self.nama} | baterai {self.baterai}% | status: {self.status}")
#         print(f"riwayat: {self.riwayat}")

#     def __str__ (self):
#         return f"Robot {self.nama} (baterai {self.baterai}%, {self.status})"

# def hitung_baterai_rendah(daftar):
#     jumlah = 0
#     for robot in daftar:
#         if robot.baterai < 20:
#               jumlah += 1
#     return jumlah

# daftar_robot = [Robot("R1", 100), Robot("R2", 67), Robot("R3", 30),
#                 Robot("R4", 99), Robot("R5", 80), Robot("R6", 10), Robot("R7", 5)]

# print(hitung_baterai_rendah(daftar_robot))

# 7. manipulasi matriks 5x5
# import numpy as np
# m = np.array([[1, 2, 3, 4, 5],
#             [6, 7, 8, 9, 10],
#             [11, 12, 13, 14, 15],
#             [16, 17, 18, 19, 20],
#             [21, 22, 23, 24, 25]])

# print("A =", m[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4]])
# print("B =", m[1:4, 1:4])
# print("C =", m[[0, 4]])

# # 8. Papan catur 8x8
# import numpy as np
# import matplotlib.pyplot as plt
# gambar = np.array([
#     [0,   255, 0,   255,0,   255,0,   255],
#     [255, 0, 255, 0, 255, 0, 255, 0, ],
#     [0,   255, 0,   255,0,   255,0,   255],
#     [255, 0, 255, 0, 255, 0, 255, 0, ],
#     [0,   255, 0,   255,0,   255,0,   255],
#     [255, 0, 255, 0, 255, 0, 255, 0, ],
#     [0,   255, 0,   255,0,   255,0,   255],
#     [255, 0, 255, 0, 255, 0, 255, 0, ],
# ])

# # Cara 1: bikin kosong, isi pola pakai slicing berpola
# papan = np.zeros((8, 8))          # semua 0 (hitam) dulu
# papan[::2, 1::2] = 255            # baris genap, kolom ganjil → putih
# papan[1::2, ::2] = 255            # baris ganjil, kolom genap → putih

# # Cara 2: trik matematika (lebih ringkas, agak advanced)
# i, j = np.indices((8, 8))
# papan_mtk = (i + j) % 2 * 255         # (baris+kolom) genap=0, ganjil=255
# plt.imshow(papan_mtk, cmap="gray", vmin=0, vmax=255)
# plt.show()

# 9. To Do List dengan file
class Tugas:
    def __init__ (self, teks):
        self.teks = teks
        self.selesai = False

    def tandai_selesai(self):
        self.selesai = True

    def __str__(self):
        tanda = "[x]" if self.selesai else "[ ]"
        return f"{tanda} {self.teks}"

daftar_tugas = []
while True:
    print("\n=== TO-DO LIST ===")
    print("1. Tambah tugas")
    print("2. Lihat semua tugas")
    print("3. Tandai selesai")
    print("4. Keluar")

    pilihan = input("Pilih (1-4): ")
    if pilihan == "1":
        teks = input("Tugas baru: ")
        daftar_tugas.append(Tugas(teks))
        print("Tugas ditambah!")

    elif pilihan == "2":
        for tugas in daftar_tugas:
            print(tugas)


    elif pilihan == "3":
        for i in range(len(daftar_tugas)):
            print(f"{i + 1}. {daftar_tugas[i]}")

        nomor = int(input("Nomor tugas yg selesai: "))
        daftar_tugas[nomor - 1].tandai_selesai()


    elif pilihan == "4":
        with open("tugas.txt", "w") as file:
            for tugas in daftar_tugas:
                file.write(str(tugas) + "\n")
        print("Tugas disimpan! Sampai jumpa!")
        break

    else:
        print("Pilihan tidak valid!")