题解 | #查询满足区间的记录#
查询满足区间的记录
https://www.nowcoder.com/practice/3eb4f4f8128a4372880ea73e2bbc0d7e
n=int(input())
t=int(input())
res=[]
for i in range(n):
o,s,e=list(map(int,input().split()))
if s<=t<=e:
res.append(o)
res.sort()
if not res:
print('null')
for v in res:
print(v)
