IGCSE cs 0478 2023 spec 2b 13

IGCSE cs 0478 2023 spec 2b 13

The names of patients are stored in the one-dimensional (1D) array Patient[] of type string. A separate two-dimensional (2D) array Readings[] stores the latest data recorded about each patient. The array already contains the readings taken by a nurse for each patient:

• temperature measured to one decimal place • pulse rate, a whole number.

Temperature readings should be in the range 31.6 to 37.2 inclusive.

Pulse readings should be in the range 55.0 to 100.0 inclusive.

The hospital number given to the patient is used for the index on both arrays, this is a value between 1 and 1000 inclusive.

When the data for a patient is checked a warning is given if any of the readings are out of range. If both readings are out of range, then a severe warning is given.

Write a procedure, using pseudocode or program code, that meets the following requirements:

• takes the hospital number as a parameter

• checks if the number is valid

• outputs an error message and exits the procedure if the number is not valid

• if the hospital number is valid:

  • output the patient’s name

  • output ‘Normal readings’ if both the readings are within range

  • output ‘Warning’ and the name of the reading e.g. ‘Pulse’ if one reading is out of range

  • output ‘Severe warning’ and the names of the two readings ‘Pulse and temperature’ if both readings are out of range

  • exits the procedure.

You must use pseudocode or program code and add comments to explain how your code works.

You do not need to initialise the data in the arrays.

Python版初始化代码，练习的时候使用如下的代码

import string
import random

#################################################
# Declare
#################################################

patient_no = 1000
patient = []
readings = []

#################################################
# Initialize Data (not include)
#################################################

for patient_index in range(patient_no):
    patient.append(''.join(random.choice(string.ascii_letters) for patient_name_index in range(6)))
    patient_temperature = random.randint(316, 372)/10
    patient_pulse = random.randint(55, 100)
    patient_readings = [patient_temperature, patient_pulse]
    readings.append(patient_readings)

#################################################
# For you to write
#################################################

# write procedure
def check_patient(hospital_number: int):
    pass

图解

Python版答案

import string
import random

#################################################
# Declare
#################################################

patient_no = 1000
patient = []
readings = []

#################################################
# Initialize Data (not include)
#################################################

for patient_index in range(patient_no):
    patient.append(''.join(random.choice(string.ascii_letters) for patient_name_index in range(6)))
    patient_temperature = random.randint(316, 372) / 10
    patient_pulse = random.randint(55, 100)
    patient_readings = [patient_temperature, patient_pulse]
    readings.append(patient_readings)

#################################################
# For you to write
#################################################

TEMP_HIGH = 37.2
TEMP_LOW = 31.6
PULSE_HIGH = 100.0
PULSE_LOW = 55.0


# write procedure
def check_patient(hospital_number: int):
    if hospital_number >= 1 and hospital_number <= 1000:   # check for valid hospital number
        print("The patient's name is ", patient[hospital_number])
        if readings[hospital_number][0] <= TEMP_HIGH and readings[hospital_number][0] >= TEMP_LOW and readings[hospital_number][1] <= PULSE_HIGH and readings[hospital_number][1] >= PULSE_LOW:
            # check if all readings normal
            print("Normal readings")
        if readings[hospital_number][0] <= TEMP_HIGH and readings[hospital_number][0] >= TEMP_LOW and readings[hospital_number][1] > PULSE_HIGH or readings[hospital_number][1] < PULSE_LOW:
            # check if pulse out of range
            print("Warning Pluse")
        if readings[hospital_number][0] > TEMP_HIGH or readings[hospital_number][0] < TEMP_LOW and readings[hospital_number][1] <= PULSE_HIGH and readings[hospital_number][1] >= PULSE_LOW:
            # check if temp out of range
            print("Warning temperature")
        if readings[hospital_number][0] > TEMP_HIGH or readings[hospital_number][0] < TEMP_LOW and readings[hospital_number][1] > PULSE_HIGH and readings[hospital_number][1] < PULSE_LOW:
            # check if both out of range
            print("Severe warning, Pulse and temperature")
    else:
        print("the hospital number is invalid")

check_patient(493)