Baza
레이팅 미적용의견: 0
1 \(s / 64\) \(MB / 50\) points
Mirko got a summer internship in a big IT company. This company builds a large database
consisting of \(N\)
rows and \(M\)
columns.
On his first day, Mirko received a total of \(Q\) queries. Each query consists of \(M\) numbers.
However, some numbers got lost during transition, so they are denoted wi\(th -1\). Mirko wants
to know how many rows of the database correspond to the query, i.e., how many rows of the
database have identical numbers as the query, excludi\(ng -1\).
For example, if the query is in the form of -1 3 2 , then we need to count the rows of the
database that have any number in the first column, have the number 3 in the second
column, and have the number 2 in the third column.
Since he just started with his internship, Mirko needs your help. Help him and answer the
queries!
The first line of input contains \(N\)
(1 ≤ \(N\)
≤ 10 {3}{ }) and \(M\)
(1 ≤ \(M\)
≤ 10 {3}{ }), the size of the database.
Each of the following \(N\)
lines contains \(M\)
numbers \(A\)
\(ij\)
(1 ≤ \(A\)
\(ij\)
≤ 10 {6}{ }), the content of the
database.
The following line contains \(Q\)
(1 ≤ \(Q\)
≤ 50), the number of queries.
Each of the following \(Q\)
lines contains \(M\)
numbers \(B\)
\(ij\)
( \(B\)
\(ij\)
= -1 or 1 ≤ \(B\)
\(ij\)
≤ 10 {6}{ }), the description
of the \(i\)
\(th\)
query.
The output must contain \(Q\)
lines, each line containing \(X\)
, the answer to the \(i\)
\(th\)
query from the
task.
4 3
1 5 2
2 3 4
4 3 2
5 4 6
3
-1 -1 2
-1 3 2
-1 -1 -1
3 8
6 5 97 99 82 50 95 1
85 62 11 64 94 84 88 19
43 99 11 64 94 84 31 19
3
-1 -1 11 64 94 84 -1 19
-1 -1 -1 99 -1 -1 -1 1
95 -1 -1 -1 -1 80 -1 -1output
2
2
1 s / 64 MB / 50 points
1
4
1
0Clarification of the first example:
The first query asks how many rows have the number 2 in the third column. These are rows number 1 (1
5 2) and number 3 (4 3 2).
The second query asks how many rows have the numbers 3 and 2 in the second and third column. This
is only row number 3 (4 3 2).
The third query asks how many rows are there in total, and the answer is obviously 4.
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