OTHS Coding Competition 2 P4 - Magic Barrier
View as PDFFrieren is analyzing a magic barrier, whose strength at specific points can be represented as a 2D grid, , with 
 rows, 
 columns, and unique values. Specifically, the strength 
of the barrier on the 
 row and 
 column is 
. She asks you 
 questions in the form of 
 and your task for each of them is to determine whether 
 exists in the
inclusive rectangle formed by 
 and 
.
Note: Fast input is highly recommended for this problem. Also, Python users should submit with PyPy as it is significantly faster.
Constraints
All values of  are unique.
Subtask 1 [15%]
Subtask 2 [85%]
Input Specification
The first line contains  integers, 
, 
, and 
.
The next  lines contain 
 integers each, representing the barrier strength 
.
The next  lines contain 
 integers each, 
.
Output Specification
For each question, output yes if the  for that question exists in the given rectangle and 
no otherwise.
Sample Input 1
3 3 3
1 7 11
10 5 9
4 3 2
10 1 1 1 2
3 2 2 3 3
100 2 2 3 3
Sample Output 1
no
yes
no
Explanation for Sample Output 1
The rectangle for the first question is shown in blue.  is not inside it.
The rectangle for the second question is shown in yellow.  is inside it.
The rectangle for the third question is shown in yellow.  is not inside it (it's not even in the grid).

Sample Input 2
2 3 2
1 2 3
4 5 6
1 1 1 1 1
1 2 2 2 3
Sample Output 2
yes
no
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