Submission #851631

#	Time	Username	Problem	Language	Result	Execution time	Memory
851631		tester777	Street Lamps (APIO19_street_lamps)	Cpython 3	0 / 100	909 ms	6396 KiB

street_lamps

# Function to calculate the total time the taxi was able to drive from stop a to stop b
def calculate_time(lamps, a, b):
    total_time = 0
    for i in range(a - 1, b - 1):
        total_time += lamps[i]
    return total_time

# Read input values
n, q = map(int, input().split())
lamp_states = list(map(int, input().strip()))

# Initialize a list to store lamp states (0 for off, 1 for on)
lamps = [0] * n

# Initialize total time to 0
total_time = 0

# Process events
for _ in range(q):
    event = input().split()
    if event[0] == "toggle":
        i = int(event[1]) - 1
        lamp_states[i] = 1 - lamp_states[i]  # Toggle lamp state
        if lamp_states[i] == 1:
            total_time += 1  # Increment total time if lamp is turned on
        else:
            total_time -= 1  # Decrement total time if lamp is turned off
    else:  # Event is a query
        a, b = map(int, event[1:])
        time = calculate_time(lamp_states, a, b)
        print(time)

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20