入力
一行だけ取る
| Input | script | 結果 |
|---|---|---|
| abcde | s=input() | s='abcde' |
| abcde | s=list(input()) | s=['a', 'b', 'c', 'd', 'e'] |
| 5(1つだけ) | a=int(input()) | a=5 |
| 1 2 | x,y = map(int,input().split()) | x=1,y=2 |
| 1 2 3 4 5 ... n | li = input().split() | li=['1','2','3',...,'n'] |
| 1 2 3 4 5 ... n | li = list(map(int,input().split())) | li=[1,2,3,4,5,...,n] |
| FFFTFTTFF | li = input().split('T') | li=['FFF', 'F', '', 'FF'] |
複数行取る
patern 1
input.txt
3
a
b
c
input.py
n=int(input())
string_list=[input() for i in range(n)]
#string_list<-['a','b','c']
patern 2
input.txt
3
1 2 2 3 1 5
4 5 3 4 1 2
2 3 5 6 0 2
input.py
n = int(input())
for i in range(n):
listA=list(map(int,input().split()))
#ここに逐次処理を書けばいいと思う。
input.py
n = int(input())
for i in range(n):
listA.append(list(map(int,input().split())))
print(listA)
#[[1, 2, 2, 3, 1, 5], [4, 5, 3, 4, 1, 2], [2, 3, 5, 6, 0, 2]]
出力
一行だけ
| Input | script | OutPut |
|---|---|---|
| s = "abcde" | print(s) | abcde\n |
| s = "abcde" | print(s,end="") | abcde |
| a = 1, b = 2 | print(a/b) | 0.5\n |
| a = 1, b = 2 | print("%lf" % (a/b)) | 0.500000\n |
| a = 1, b = 2 | print("%.1lf" % (a/b)) | 0.5\n |
| a = 1, b = 2 | print(str(a+b)+"ですね" | 0.5くらいかな\n |
複数
patern 1
output.txt
a
b
c
input.py
n=["a","b","c"]
for i in n:
print(i)
patern 2
output.txt
1 2 2 3 1 5
4 5 3 4 1 2
2 3 5 6 0 2
input.py
n = [[1, 2, 2, 3, 1, 5], [4, 5, 3, 4, 1, 2], [2, 3, 5, 6, 0, 2]]
s = 3
t = 6
for i in range(s):
for j in range(t-1):
print(n[i][j],end = " ")
print(n[i][t-1])
input.py
n = [[1, 2, 2, 3, 1, 5], [4, 5, 3, 4, 1, 2], [2, 3, 5, 6, 0, 2]]
s = 3
t = 6
for i in range(s):
for j in range(t-1):
print(*n[i])
小数点
一行だけ
a = 0.364364
print(a) #0.364364
print("{:.6f}".format(a)) #0.364364
print("{:.4f}".format(a)) #0.3644 小数点第4位に丸めることもできる。
進数変更
b = 810
print("{:b}".format(b)) #1100101010 2進数表記
print("{:o}".format(b)) #1452 8進数表記
print("{:x}".format(b)) #32a 16進数小文字表記
print("{:X}".format(b)) #32A 16進数大文字表記
二分探索
li = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
s = 0
t = len(li)
def ch(x):
y = 13
if x > y:
return 0
else:
return 1
while True:
p = int((s+t)/2)
pp = ch(p)
if pp == 0:
t = p
elif pp == 1:
s = p
print(s,t)
if s + 1 == t:
break
ans = s
bit探索
li = [1,2,3,4,5,6,7,8,9]
for i in range(2**len(li)):
s = "{:b}".format(i)
s = list(s)
s = [int(i) for i in s]
s = [0]*(len(li) - len(s)) + s
o = 0
for j in range(len(s)):
o = o + s[j] * li[j]
#処理を
sort
l = [3, 1, 4, 5, 2]
l.sort()
print(l)
# [1, 2, 3, 4, 5]
l.sort(reverse=True)
print(l)
# [5, 4, 3, 2, 1]
l = [3, 1, 4, 5, 2]
l_sorted = sorted(l)
print(l_sorted) # [1, 2, 3, 4, 5]
print(l) # [3, 1, 4, 5, 2]
l_reverse_sorted = sorted(l, reverse=True)
print(l_reverse_sorted) # [5, 4, 3, 2, 1]
l = [-3, 1, 4, -5, 2]
print(sorted(l)) # [-5, -3, 1, 2, 4]
print(sorted(l, key=abs)) # [1, 2, -3, 4, -5]
l = ['b', 'cc', 'aaa']
print(sorted(l)) # ['aaa', 'b', 'cc']
print(sorted(l, key=len)) # ['b', 'cc', 'aaa']
l = ['banana', 'cherry', 'apple']
print(sorted(l)) # ['apple', 'banana', 'cherry']
l.sort()
print(l) # ['apple', 'banana', 'cherry']