13449: 地震

Memory Limit:512 MB Time Limit:4.000 S
Judge Style:Text Compare Creator:
Submit:1 Solved:0

Description

A国多发生地震,有人说:“X年是自Y年以来震级最大的。它的含义是X年的震级不超过Y年,且对于任意YZXZ年的震级严格小于X年。例如2002200320042005年的震级(A国的里氏单位)分别为4920590128323890,则可以说“2005年是自2003年以来损失最大的,但不能说“2005年是自2002年以来损失最大的由于有些年份的震级数据丢失,有的说法是可能正确也可以不正确的。

Input

输入仅一行包含一个正整数n,为已知的数据。以下n行每行两个整数yiri,为年份和震级,按照年份从小到大排列,即yiyi+1。下一行包含一个正整数m,为询问的次数。以下m行每行包含两个数YX,即询问“X年是自Y年以来损失最大的。这句话是必真、必假还是有可能

Output

对于每一个询问,输出truefalse或者maybe

Sample Input Copy

6
2002 4920
2003 5901
2004 2832
2005 3890
2007 5609
2008 3024
5
2002 2005
2003 2005
2002 2007
2003 2007
2005 2008

Sample Output Copy

false
true
false
maybe
false

HINT

Sample Input 2

      10

899 10092

1134 7138

2173 3903

3063 4188

3351 1054

3438 9524

3581 5695

9031 3276

13019 13772

13963 4826

10

3063 3438

1797 13019

5842 16103

3438 9031

9218 13019

899 1134

2717 3581

11262 3536

899 13963

3581 9031

Sample Output 2

false

maybe

maybe

false

maybe

maybe

false

maybe

false

maybe

HINT

数据:(PS:数据做的很有梯度,暴力应该会拿很多分,共20)100%的数据满足:(1<=n<=500000, 1<=m<=500000, 0<=yi<=10^9,0<=ri<=10^9

N = 6

M = 5

N = 10

M = 10

N = 100

M = 100

N = 100

M = 100

N = 1000

M = 1000

N = 10000

M = 10000

N = 10000

M = 10000

N = 50000

M = 10000

N = 50000

M = 50000

N = 15000

M = 15000

N = 250000

M = 250000

N = 350000

M = 350000

N = 250000

M = 250000

N = 350000

M = 350000

N = 350000

M = 350000

N = 50000

M = 50000

N = 50000

M = 50000

N = 500000

M = 500000

N = 500000

M = 500000

N = 500000

M = 500000