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BINS.py
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BINS.py
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#!/usr/bin/env python
# Copyright (C) 2017-2020 Greenweaves Software Limited
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# BINS Binary Search
import argparse
import os
import time
from helpers import read_strings
# bins
#
# Find a given set of keys in a given array.
def bins(n,m,a,values):
def search(value,imin,imax):
if imin>imax:
return -1
if imin==imax:
return imin if value==a[imin-1] else -1
imid = (imax+imin)//2
left = search(value,imin,imid)
return left if left>-1 else search(value,imid+1,imax)
return [search(value,1,n) for value in values]
if __name__=='__main__':
start = time.time()
parser = argparse.ArgumentParser('....')
parser.add_argument('--sample', default=False, action='store_true', help='process sample dataset')
parser.add_argument('--extra', default=False, action='store_true', help='process extra dataset')
parser.add_argument('--rosalind', default=False, action='store_true', help='process Rosalind dataset')
args = parser.parse_args()
if args.sample:
print (bins(5,
6,
[10, 20, 30, 40, 50],
[40, 10, 35, 15, 40, 20]))
if args.rosalind:
Input = read_strings(f'data/rosalind_{os.path.basename(__file__).split(".")[0]}.txt')
Result = ' '.join([str(r) for r in bins(int(Input[0]),
int(Input[1]),
[int(i) for i in Input[2].split()],
[int(i) for i in Input[3].split()])])
print (Result)
with open(f'{os.path.basename(__file__).split(".")[0]}.txt','w') as f:
f.write(f'{Result}\n')
elapsed = time.time() - start
minutes = int(elapsed/60)
seconds = elapsed - 60*minutes
print (f'Elapsed Time {minutes} m {seconds:.2f} s')