Round 1: 3 written test in college campus. a.) Aptitude Round (R.S. Agrawal) (30 question, 40 minute). b.) Technical Aptitude (Most from the C language Easy question) (20 question, 20 minute). c.) 3 coding question written on paper. (In 75 Minute) 1.) string panagram or not. (means all alphabat are present or not in the string) 2.) Find sqare sub matrix of size N from the given sqare matrix of size M whose sum of element is maximum. 3.) sort the array element based on Dictionary. Input :- 10,20,30,100,200,300. output :- 10,100,20,200,30,300. Round 2: coding written round in Nagarro Gurgaon office. There are 3 coding question written on paper in 75 minute. 1.) A matrix is given, Rotate a sub matrix at 90 degree of given size. 2.) A string is given(paragraph type), count the frequency of each word in string and print it. 3.) Given 2 sorted array and a number N, find 2 numbers whose sum is closet to given number N. Round 3: Technical Interview Explain your written code of previous round. If any error,find it,correct it. If your code is not optimize and not space efficient then Give optimize & efficient solution of your written code. Interviewer is very friendly, he only check your explanation process or optimization techniques. After the written code explanation, he ask 2 coding question:- 1.) Merge an array of size n into another array of size m+n 2.) Given a text string and a sample string. Find if the characters of the sample string is in the same order in the text string. Eg:- TextString: abcnjhgahgjhfhaljhrkhgrbhjbevfho Sample string: nagarro