Update rotate_by_90.cpp

ishikasinha-d · web-flow · commit cdeffe669b34 · 2021-07-28T13:49:31.000+05:30
diff --git a/2D Arrays/rotate_by_90.cpp b/2D Arrays/rotate_by_90.cpp
@@ -1,3 +1,5 @@
+// Given a square matrix of size N x N. The task is to rotate it by 90 degrees in anti-clockwise direction without using any extra space.
+
 #include<bits/stdc++.h>
 #include <stdio.h>
 using namespace std;

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,5 @@`
	`1`	`+// Given a square matrix of size N x N. The task is to rotate it by 90 degrees in anti-clockwise direction without using any extra space.`
	`2`	`+`
`1`	`3`	`#include<bits/stdc++.h>`
`2`	`4`	`#include <stdio.h>`
`3`	`5`	`using namespace std;`