Tag(s):

## Easy-Medium

Problem
Editorial
Analytics

You will be given a $N\times M$ matrix A of integers and K add operations to execute. An add operation adds a constant to all of the entries in a square sub-matrix of A and it is specified by 4 integers $R, C, S$ and D where R is the row number, C is the column number, S is the size of the sub-matrix and D is the constant to add to the entries. The entry at row R and column C is denoted by $A[R][C]$. The row and column numbers in a query correspond to the upper-left corner of the square sub-matrix to update.

Input:

The first line of input contains three numbers $N, M, K$ representing the number of rows, the number of columns and the number of add operations respectively. N lines follow each containing M space-separated integers. K lines follow each containing four numbers $R, C, S$ and D as described above.

Output:

Print the matrix after applying all of the K add operations. The matrix should be printed on N lines each containing M space-separated integers.

Constraints:

• $1\le N,M,K\le 1000$.
• $1\le R\le N$, $1\le C\le M$, $1\le S\le min(N,M)$ and $-10^6\le D\le 10^6$.
• $-10^6\le A[i][j]\le 10^6$ for $1\le i\le N$ and $1\le j\le M$.
SAMPLE INPUT
4 4 2
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
2 3 2 5
3 2 2 -3
SAMPLE OUTPUT
1 2 3 4
5 6 12 13
9 7 13 17
13 11 12 16

Explanation

Take the entry $A[3][3]=11$. This entry is affected by both updates: we first add 5 to it and then we subtract 3 from it so the entry becomes $A[3][3]=13$ at the end.

Time Limit: 1.5 sec(s) for each input file.
Memory Limit: 256 MB
Source Limit: 1024 KB
Marking Scheme: Marks are awarded when all the testcases pass.
Allowed Languages: C, C++, C++14, Clojure, C#, D, Erlang, F#, Go, Groovy, Haskell, Java, Java 8, JavaScript(Rhino), JavaScript(Node.js), Julia, Kotlin, Lisp, Lisp (SBCL), Lua, Objective-C, OCaml, Octave, Pascal, Perl, PHP, Python, Python 3, R(RScript), Racket, Ruby, Rust, Scala, Swift, Visual Basic

## CODE EDITOR

Initializing Code Editor...

## This Problem was Asked in

Challenge Name

International Women's Hackathon

OTHER PROBLEMS OF THIS CHALLENGE
• Algorithms > String Algorithms
• Math > Number Theory
• Algorithms > Dynamic Programming