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lrep.py
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lrep.py
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#! /usr/bin/python3
import sys
import argparse
import signal
import tools
def n_leaves(tree, v):
n = 0
for c in tree.traverse(v):
n += not c.children
return n
def main(args):
s = sys.stdin.readline().strip()
k = int(sys.stdin.readline().strip())
# ignore the rest
s = s[:-1] # cut trailing '$'
tree = tools.suffix_tree.SuffixTree()
tree.add(s)
l = ''
for v in tree.traverse():
if n_leaves(tree, v) >= k:
path = tree.path(v)
if len(l) < len(path):
l = path
print(l)
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='description',
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
args = parser.parse_args()
try:
main(args)
except BrokenPipeError:
sys.exit(128 + signal.SIGPIPE)
except KeyboardInterrupt:
sys.exit(128 + signal.SIGINT)