Solve 5.19 LAB

5/5.12/5.12.1/main.py

@@ -0,0 +1,9 @@
+
+def swap(list):
+    m_list = list[0], list[-1] = list[-1], list[0]
+    return m_list
+
+values_list = input().split(',')  # Program receives comma-separated values like 5,4,12,19
+swap(values_list)
+
+print(values_list)

5/5.17/5.17.1/main.py

@@ -0,0 +1,12 @@
+gas_const = 8.3144621
+
+def compute_gas_volume(pressure, temperature, moles):
+    return (moles * gas_const * temperature) / pressure
+    
+gas_pressure = float(input())
+gas_moles = float(input())
+gas_temperature = float(input())
+gas_volume = 0.0
+
+gas_volume = compute_gas_volume(gas_pressure, gas_temperature, gas_moles)
+print('Gas volume:', gas_volume, 'm^3')

5/5.18 LAB/main.py

@@ -0,0 +1,6 @@
+def swap_values(user_val1, user_val2):
+    return user_val2, user_val1
+
+if __name__ == '__main__': 
+    val1, val2 = swap_values(input(), input())
+    print('{0} {1}'.format(val1, val2))

5/5.19 LAB/main.py

@@ -0,0 +1,46 @@
+coins = [
+    ['Dollars', 'Dollar'],
+    ['Quarters', 'Quarter'],
+    ['Dimes', 'Dime'],
+    ['Nickels', 'Nickel'],
+    ['Pennies', 'Penny']]
+
+def coin_enumeration(change):
+    if len(change) != 0:
+        for coin in coins:
+            num_coins = change.count(coin)
+            if num_coins != 0:
+                if num_coins > 1:
+                    print('{0} {1}'.format(num_coins, coin[0].lower()))
+                else:
+                    print('{0} {1}'.format(num_coins, coin[1].lower()))
+    else:
+        print('no change')
+
+def fit_coin(to_make, coin_val):
+    num_coin = to_make // coin_val
+    remainder = to_make - (num_coin * coin_val)
+    
+    return num_coin, remainder
+
+def exact_change(input_val):
+    nd, input_val = fit_coin(input_val, 100)
+    nq, input_val = fit_coin(input_val, 25)
+    ndime, input_val = fit_coin(input_val, 10)
+    nn, input_val = fit_coin(input_val, 5)
+    np, input_val = fit_coin(input_val, 1)
+    
+    return nd, nq, ndime, nn, np
+
+if __name__ == '__main__': 
+    change = []
+    input_val = int(input())    
+    num_dollars, num_quarters, num_dimes, num_nickels, num_pennies = exact_change(input_val)
+    
+    change.extend([coins[0] for i in range(num_dollars)])
+    change.extend([coins[1] for i in range(num_quarters)])
+    change.extend([coins[2] for i in range(num_dimes)])
+    change.extend([coins[3] for i in range(num_nickels)])
+    change.extend([coins[4] for i in range(num_pennies)])
+    
+    coin_enumeration(change)

5/5.7/5.7.2/main.py

@@ -0,0 +1,13 @@
+
+def shampoo_instructions(num_cycles):
+    if num_cycles < 1:
+        print('Too few.')
+    elif num_cycles > 4:
+        print('Too many.')
+    else:
+        for i in range(num_cycles):
+            print('{0} : Lather and rinse.'.format(i + 1))
+        print('Done.')
+
+user_cycles = int(input())
+shampoo_instructions(user_cycles)