''' Challenge : Strike of Lightning Gadget (Thunder Strike) https://code.sololearn.com/cJpkG240223Q/#cpp DESCRIPTION: An electronic gadget simulating a lightning strike is to be built. But before it happens the proof of concept need to be done. The grid consists of 66 LEDs forming a triangle consisting of 11 rows. Each row has one more LED than its predecessor so that row 0 has 1 LED, and row 10 has 11 LEDs. The gadget will display lightning strikes in the following way: 1. The LED in row 0 turns on (lightning strike starts) and stays on 2. After 0.1 s the LED randomly selected to the (L)eft or to the (R)ight turns on in the next row (lightning goes to the ground) and stays on 3. The process continues until a LED in the row 10 turns on (lightning hits the ground) 4. The LED in the row 10 stays turned for 0.2 s and after that time all the LEDs are switched off immediately 5. The procedure then starts with delay 0.3 s from point 1 0 + @ 1 + + + @ 2 + + + + @ + 3 + + + + + @ + + 4 + + + + + + + @ + + 5 + + + + + + + + + @ + + 6 + + + + + + + + + + @ + + + 7 + + + + + + + + + + + @ + + + + 8 + + + + + + + + + + + + + @ + + + + 9 + + + + + + + + + + + + + + @ + + + + + 10 + + + + + + + + + + + + + + + @ + + + + + + The LED grid lightning OBJECTIVES: 1. How long does it the gadget take to do 120 strikes? Having done 20 simulations: 2. Tell how many lightnings have to strike so that each LED in the row 10 is hit at least 1 time? 3. How many times each LED in the grid was switched on to fulfill the condition from previous point? ''' import sys import random as r led_light_count = [] leds = [] num_of_rows = 11 time = 0 for i in range(num_of_rows): led_light_count.append(list()) leds.append(list()) row_for_count = led_light_count[i] row_for_led = leds[i] for j in range(i+1): row_for_count.append(0) row_for_led.append(0) def generateLightningSequence(): sequence = [] for i in range(num_of_rows): sequence.append(list()) prev = 0 next = 0 for i in range(num_of_rows): row = sequence[i] if i==0: row.append(1) next = r.randint(prev,prev+1) else: for j in range(i+1): if j==next: row.append(1) else: row.append(0) prev = next next = r.randint(prev,prev+1) return sequence def at_least_one_for_all_led(): for row in led_light_count: for val in row: if val<1: return False return True def print_led_light_count(): led_number = 1 for i in range(len(led_light_count)): print("Row "+str(i)) row = led_light_count[i] for j in range(len(row)): print("{0} {1} {2} {3} {4}".format("LED", str(led_number),"lighted",str(row[j]),"time(s)")) led_number+=1 def print_led_light_count_triangle(strike): print("LED LIGHT COUNT TRIANGLE AFTER STRIKE {0}".format(strike)) for row in led_light_count: for i in range(num_of_rows-len(row)): sys.stdout.write(" ") for j in row: sys.stdout.write(str(j)+" ") print() print("GRID BEFORE STRIKE") for row in leds: for i in range(num_of_rows-len(row)): sys.stdout.write(" ") for j in row: if j==0: sys.stdout.write("+ ") print() i = 1 max_draws = 6 while True: if at_least_one_for_all_led(): break if i==21: print_led_light_count_triangle(i-1) if i1 and i<=120: time+=0.3 lightning_sequence = generateLightningSequence() for j in range(len(lightning_sequence)): row = lightning_sequence[j] for k in range(num_of_rows-len(row)): if i

Lightning Strike Challenge(JPM7)