import sys
sys.stdin = open('sample_input.txt')
input = sys.stdin.readline
if __name__ == '__main__':
test_case_total_count = int(input())
for test_case in range(test_case_total_count):
answer = int(input())
# TODO: Implementation
print(f'#{test_case + 1} {answer}')print('''Hello
My
Wolrd~''', end='', sep='')Details
value_info = {
"Seoul": [10312545, 91375],
"Pusan": [3567910, 5868],
"Incheon": [2758296, 64888],
"Daegu": [2511676, 17230],
"Gwangju": [1454636, 29774],
}
for key in value_info:
print(f"{key.rjust(15)}"
f"{f'{value_info[key][0]:,d}'.rjust(15)}"
f"{(('+' if value_info[key][1] >= 0 else '-') + f'{value_info[key][1]:,.0f}').rjust(15)}"
, sep="")Details
# 1. %-formatting
weight = 79.12
print("%-10.4f" % weight)
# 2. format function
print(format(weight, "-10.4f"))
# 3. String
hash_value = "1234567890"
print("%13s" % hash_value)
# print(format(hash_value, "%13s")) # ValueError: Invalid format specifier
print(hash_value.rjust(13))Details
# 1. %-formatting
arr=[1,2,3]
print("%s %s %s" % (arr[0], arr[1], arr[2]))
truple=(1,2,3)
print("%s %s %s" % truple)
# 2. str.format()
name = "rolroralra"
age = 20
print("Hello, {}. I am {}.".format(name, age))
print("Hello, {1}. You are {0}.".format(age, name))
person = {'name': 'Eric', 'age': 74}
print("Hello, {name}. You are {age}.".format(name=person['name'], age=person['age']))
# You can also use ** to do this neat trick with dictionaries
print("Hello, {name}. You are {age}.".format(**person))
# 3. f string
print(f"Hello, {name}. You are {age}.")https://docs.python.org/ko/3.7/library/operator.html
Details
a = 10
b = 10
# Old Version Ternary Operation (A and B or C)
print(a == b and "TRUE" or "FALSE")
# OUTPUT: TRUE
print(a == b and a - b or a + b) # This old version ternary operator has this problem
# OUTPUT: 20
# New Ternary Operation in python 2.5
print("TRUE" if a == b else "FALSE")
# OUTPUT: TRUE
print(a - b if a == b else a + b)
# OUTPUT: 0Details
set1 = {1,2,3}
set2 = {3,4,5}
print(set1 & set2)
#print(set1.intersection(set2))
print(set1 | set2)
#print(set1.union(set2))
print(set1 - set2)
#print(set1.difference(set2))
print(set1 ^ set2)
#print(set1.symmetric_difference(set2))a = [2, 6, 7, 8, 9]
list_even = list()
for num in a:
if num % 2 ==0:
list_even.append(num)
# list_even += [num]
# list_even.extend([num])
print(list_even)
# List Comprehension
print([num for num in a if num % 2 == 0])https://www.tutorialspoint.com/difference-between-and-is-operator-in-python
Details
# Python program to
# illustrate the
# difference between
# == and is operator
# [] is an empty list
list1 = []
list2 = []
list3=list1
if (list1 == list2):
print("True")
else:
print("False")
# True
if (list1 is list2):
print("True")
else:
print("False")
# False
if (list1 is list3):
print("True")
else:
print("False")
# Truehttps://mingrammer.com/introduce-comprehension-of-python/
Details
import functools
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent