Python one_line_reader Examples

Example #1

import common


def part_perm_number(all, choose):
    perm_num = 1
    for i in range(all - choose + 1, all + 1):
        perm_num = perm_num * i
    return perm_num


all_items, choose_items = map(int, common.one_line_reader('PPER.txt').split())
print(int(part_perm_number(all_items, choose_items) % 1e6))

Example #2

import common

protein = common.one_line_reader('PRTM.txt')
sum_mass = sum(common.get_protein_mass(letter) for letter in protein)
print(round(sum_mass, 3))

Example #3

File: INOD.py Project: NikitinMikhail/rosalind

import common
'''
exterbal_nodes = n(leaves) (it's unrooted)
all_edges = (external + 3*internal) / 2
all_nodes = external + internal
all_edges = all_nodes - 1
'''
leaves_num = int(common.one_line_reader('INOD.txt'))
external_nodes = leaves_num
internal_nodes = external_nodes - 2
print(internal_nodes)

Example #4

import common
import math
import itertools

input_number = int(common.one_line_reader('PERM.txt'))
total_perm = math.factorial(input_number)
num_list = list(range(1, input_number + 1))
iter_list = list(itertools.permutations(num_list))

with open('PERM_result.txt', 'w') as f:
    print(total_perm, file=f)
    for perm in iter_list:
        print(' '.join(map(str, [item for item in perm])), file=f)

Example #5

File: SIGN.py Project: NikitinMikhail/rosalind

import itertools
import common
import numpy as np

input_number = int(common.one_line_reader('SIGN.txt'))
num_list = list(range(1, input_number + 1))
iter_list = list(itertools.permutations(num_list))
sign_list = list(itertools.product((-1, 1), repeat=input_number))
signed_perm_list = list()

for num in iter_list:
    for sign in sign_list:
        signed_perm_list.append(tuple(np.multiply(num, sign)))

with open('SIGN_result.txt', 'w') as f:
    print(len(signed_perm_list), file=f)
    for perm in signed_perm_list:
        print(' '.join(map(str, [item for item in perm])), file=f)

Example #6

import common
from common import combinations as C

n, m = map(int, common.one_line_reader('ASPC.txt').split())
print(common.modulo(sum([common.modulo(C(n,i), int(1e6)) for i in range(m, n + 1)]), int(1e6)))

Example #7

File: SSET.py Project: NikitinMikhail/rosalind

import common


def f(n):
    fact = 1
    for i in range(1, n + 1):
        fact *= i
    return fact


def c(n, k):
    return (f(n) // f(n - k) // f(k))


if __name__ == '__main__':
    n_max = int(common.one_line_reader('SSET.txt'))
    subset_list = [c(n_max, k) for k in range(n_max)]
    subset_num = 1  # empty set is a subset too
    for item in subset_list:
        subset_num += item

    print(int(subset_num % 1e6))