Livre Ali en python: page 43 Planification des sections

# coding: utf-8
import numpy as np

n = int(raw_input())
start = raw_input()
end = raw_input()
data_s = np.array([],dtype=int)
data_e = np.array([],dtype=int)
line = ""
for i in start:
    if i != " ":
        line += i
        # print line
    if i == " ":
        data_s = np.append(data_s, int(line))
        line = ""
data_s = np.append(data_s, int(line))

line = ""
for i in end:
    if i != " ":
        line += i
        # print line
    if i == " ":
        data_e = np.append(data_e, int(line))
        line = ""
data_e = np.append(data_e, int(line))


########################Prétraitement jusqu'à ici##################

now = -1
history_e = np.array([],dtype=int)
history_s = np.array([],dtype=int)
while(1):
    data_e = data_e[np.where(data_s>now)]
    data_s = data_s[np.where(data_s>now)]
    ind= np.argmin(data_e[np.where(data_s>now)])
    now = data_e[ind]
    history_e = np.append(history_e, data_e[ind])
    history_s = np.append(history_s,data_s[ind])

    if now > data_s.max() or len(data_s) == 0:
        break

print history_s
print history_e
print len(history_e)

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