File18. Файли ададҳои ҳақиқӣ дода шудааст. Якумин минимуми локалии он ёфта шавад.

Минимуми локалӣ гуфта элементеро, ки аз ҳамсояҳояш хурд аст, меноманд.

Ҳал дар Python 3:

import random

def GenerateLine(fname):
    N = random.randrange(1,10)
    print("N = ",N)
    #N = 2
    #line = "1, 5, 5, 5, 4, 4, 5"
    try:
        f = open(fname, "w")
        try:
            for i in range(N):
                line = str(random.randint(1,4))+"\n"
                f.write(line)
        finally:
            f.close()
    except IOError:
        print('Write error: ',fname)

f_input = "file18_input.txt"
#GenerateLine(f_input)

i = 0
flag = False
try:
    with open(f_input,'r') as f_in:
        for line in f_in:
            i += 1
            x = int(line.strip())
            print(x)    
            if i == 1:
                x1 = x
            elif i == 2:
                x2 = x
                if x1 < x2:
                    l_min = x1
                    flag = True
                    break
            elif i == 3:
                x3 = x
                if x1 >= x2 and x2 < x3:
                    l_min = x2
                    flag = True
                    break
            else:
                x1 = x2
                x2 = x3
                x3 = x
                if x1 >= x2 and x2 < x3:
                    l_min = x2
                    flag = True
                    break

except IOError:
    print('Open error: ',f_source)
        
if not flag:
    if i == 1:
        l_min = x1
    else:
        l_min = x        
            
print("First local minimum:",l_min)