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Network_packet_processing_simulation.py
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Network_packet_processing_simulation.py
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import collections
num=list(map(int,input().split()))
values=[]
for i in range(num[1]):
values.append(list(map(int,input().split())))
pipe=collections.deque([values[0]])
if num[1]>=1:
ans=[values[0][0]]
else:
ans=[]
next_starting_time=collections.deque([values[0][1]])
index=1
for i in range(1,num[1]):
# print(pipe,next_starting_time,index,ans)
if len(pipe)<num[0]:
pipe.append(values[i])
if next_starting_time[index-1]<values[i][0]:
ans.append(values[i][0])
else:
ans.append(next_starting_time[index-1])
next_starting_time.append(values[i][1]+next_starting_time[index-1])
index+=1
elif len(pipe)==num[0] and next_starting_time[0]<=values[i][0]:
if next_starting_time[index-1] < values[i][0]:
ans.append(values[i][0])
else:
ans.append(next_starting_time[index-1])
next_starting_time.append(values[i][1]+next_starting_time[index-1])
pipe.popleft()
next_starting_time.popleft()
pipe.append(values[i])
else:
ans.append(-1)
# print(time_finished[len(time_finished)-1], pipe[0][1],pipe,time_finished,values[i],sep="_")
# print(time_finished)
print(" ".join(str(i) for i in ans))