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I am making a game where two players take turns adding a number 1 to 10 to the running total. The player who adds to get 100 wins. I stored the inputs of the players in a list, and at the end of the game, I want to display the total after every turn. The list is in the format:
allTurns = [player1move1, player2move1, player1move2, player2move2, ...]
How can I add only the first 2 elements and display them, then add only the first 4 elements and display them, and then the first 6, and so on?
for i in range(0, len(list)):
if i % 2 == 0:
print(sum(list[:i+1]))
Or
sums = []
for i in range(0, len(list)):
if i % 2 == 0:
sums.append(sums[-1] + list[i-1] + list[i])
Try this:
allTurns = [1,2,3,6,12,23]
out = []
for n in range(len(allTurns)):
if n % 2 is 1:
out.append(allTurns[n] + allTurns[n-1])
if len(allTurns) % 2 is 1:
out.append(allTurns[-1])
print(out)
I've coded it so that it could work for any situation, and not just yours.
Try this:
allTurns = [1,2,3,6,12,23,4]
out = []
for n in allTurns:
if allTurns.index(n) % 2 is 0:
i = 0
for a in range(allTurns.index(n)+2):
try:
i=i+allTurns[a]
except IndexError:
pass
out.append(i)
print(out)
This is probably as simple as it can get.
Related
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if __name__ == '__main__':
n = int(input())
for i in range (0,n):
result = i**2
print(result)
#input : 5
#output : 0 1 4 9 16
range 0,n = 0,1,2,3,4 and
we gave i**2 but how we got 0,1,4,9,16 as output?
range(start, stop, step)
** = square of Number
start Optional. An integer number specifying at which position to
start. Default is 0
stop Required. An integer number specifying at which position to
stop (not included).
step Optional. An integer number specifying the incrementation. Default is 1
you are passing required parameter as 5 which will not be included in the loop. so as per your calculation it will start from 0
result = 0**2 = 0
result = 1**2 = 1
result = 2**2 = 4
result = 3**2 = 9
result = 4**2 = 16
'i' will not reach 5 because of non-inclusive nature of range() operator.
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Let's consider this string :
st = 'text1text6253text'
How could I please extract the two first consecutive figures ?
Expected output :
62
You can either use regex with \d{2}and return that, or go over the string:
st = 'text1text6253text'
for i in range(len(st)-1):
if st[i].isdigit() and st[i+1].isdigit():
print(st[i]+st[i+1])
break
import re
def find_con(n, s):
result = re.search('\d{%s}'%n, s)
return result.group(0) if result else result
st = 'text1text6253text'
print(find_con(2, st))
st = 'text1text6253text'
lst = list(st)
lst2 = []
for i,v in enumerate(lst):
if lst[i].isdigit() and lst[i+1].isdigit():
lst2.append(lst[i])
lst2.append(lst[i+1])
ans = int(lst2[0] + lst2[1])
print(ans)
Thanks to your answers, I built a general function that I propose you below :
def extract_n_consecutive_numbers(st,nb):
for i in range(len(st)-nb+1):
is_numeric = True
for j in range(nb):
is_numeric = is_numeric & st[i+j].isdigit()
if is_numeric :
output = ""
for j in range(nb):
output += st[i+j]
return output
return ""
Example :
extract_n_consecutive_numbers('text1text6253text',2)
Out[1]: 62
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This problem:
Input: 123456
Result:
1+2+3+4+5+6 = 21
2+1 = 3
Return: 3
This is my code:
num = input()
print(sum(list(map(int, list(num)))))
I don't know how to do until it is 1 digit.
Try this (example in IPython):
In [1]: s = '123456'
Out[1]: '123456'
In [2]: digits = [int(j) for j in s]
Out[2]: [1, 2, 3, 4, 5, 6]
In [3]: s = str(sum(digits))
Out[3]: '21'
Repeat steps 2 and three until len(s) == 1.
One way:
while len(str(ans))>1:
ans = sum(map(int, str(ans)))
Full code:
num = 45637
ans = num
while len(str(ans))>1:
ans = sum(map(int, str(ans)))
print(ans)
Output for input 45637:
7
You can try this:
s = input()
while(len(s)>1):
s = str(sum(list(map(int,s))))
One way to do it using sum(), list comprehension and recursion,
def simulated_sum(input):
"""This is a recursive function
to find the simulated sum of an integer"""
if len(str(input)) == 1:
return input
else:
input_digits = [int(x) for x in str(input)]
latest_sum = sum(input_digits)
return simulated_sum(latest_sum)
input = int(input('Enter a number'))
print(simulated_sum(input))
DEMO: https://rextester.com/WCBXIL71483
Is this what you want? (instructions unclear):
def myfunction(number):
total = 0
answertotal = 0
for i in str(number):
total += int(i)
for i in str(total):
answertotal += int(i)
return answertotal
myfunction(123456)
This function returns 3
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This is for the Third Problem on Google's Codejam Qualification Round 2020
The Judging System says this solution gives a wrong answer, but I could not figure out why. Any insights would be much appreciated.
num_test_cases = int(input())
def notOverlap(activity, arr):
# returns true if we have no overlapping activity in arr
for act in arr:
if not (act[0] >= activity[1] or act[1] <= activity[0]):
return False
return True
def decide(act, num_act):
C, J = [], []
result = [None]*num_act
for i in range(num_act):
if notOverlap(act[i], C):
C.append(act[i])
result[i] = "C"
elif notOverlap(act[i], J):
J.append(act[i])
result[i] = "J"
else:
return "IMPOSSIBLE"
return "".join(result)
for i in range(num_test_cases):
num_act = int(input())
act = []
for _ in range(num_act):
act.append(list(map(int, input().split())))
print("Case #" + str(i+1) + ": " + decide(act, num_act))
You implemented a brute force way to solve it. Your code runs slow, Time complexity O(N^2), but you can do it in O(N*log(N))
Instead of check with notOverlap(activity, arr), sort the array and check with the last ending time activity of C or J. ( Greedy Way to solve it )
You have to store the index of activity before sorting the array.
Here is my solution, but before reading the solution try to implement it yourself
for testcasei in range(1, 1 + int(input())):
n = int(input())
acts = []
for index in range(n):
start, end = map(int, input().split())
acts.append((start, end, index)) # store also the index
acts.sort(reverse=True) # sort by starting time reversed
# so the first activity go to the last
d = ['']*n # construct the array for the answer
cnow = jnow = 0 # next time C or J are available
impossible = False # not impossible for now
while acts: # while there is an activity
start_time, end_time, index = acts.pop()
if cnow <= start_time: # C is available to do the activity
cnow = end_time
d[index] = 'C'
elif jnow <= start_time:
jnow = end_time
d[index] = 'J'
else: # both are'nt available
impossible = True
break
if impossible:
d = 'IMPOSSIBLE'
else:
d = ''.join(d) # convert the array to string
print("Case #%d: %s" % (testcasei, d))
I hope you find this informative and helped you to understand, and keep the hard work.
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I just started taking classes of python and I am trying to make a code in where the value of the first month = 1 and multiply its value by 2 next month, and then by 3 next month, and 2 next month and so on. Until it reaches 6 months. I am using this code but it only gives me Month 1 = 1 which is the initial value.
P = 1
count = 12
print ("month 1: ",P)
for month in range(count-1):
if month %2 == 0:
P = P*2
else:
P = P*3
print:("month", month+2 ,":",P)
Change
print:("month", month+2 ,":",P)
to
print("month", month+2 ,":",P)
I'm not sure why python didn't complain about the colon. You can actually put anything there
weird: ("month", month+2 ,":",P)
And it won't complain. Awesome mistake, thanks!
Remember that range(count-1) will return numbers between 0 and 11 (the last number is non-inclusive)
Your logic could be like this:
(a) A counter that starts at 1 (cnt)
(b) A loop that watches for the counter to reach 6, then exits
(c) A running total (month_val or some such)
cnt = 1
month_val = 1
while cnt < 7:
month_val = month_val * cnt
print(month_val)
cnt += 1
The above assumes that you retain the new value of month_num -- but re-reading your question, you might just want to print the values 1 to 6, in which case the month_num value should just remain 1 all the time:
cnt = 1
month_val = 1
while cnt < 7:
print(month_val * cnt)
cnt += 1
You can define a dictionary for your problem like
month_values={}
for i in range(1,7):
if i == 1:
month_values['Month'+str(i)]=1
elif i%2 == 0:
month_values['Month'+str(i)]=i*2
elif i%2 == 1:
month_values['Month'+str(i)]=i*3
print(month_values)
prints
{'Month1': 1, 'Month2': 4, 'Month3': 9, 'Month4': 8, 'Month5': 15, 'Month6': 12}