Questions on C array traversing and searching

1	Write a program to enter the marks of 10 students for the first assessment. The maximum marks is 100. Traverse the array and find print the number of students getting marks: a)    Above 90 b)    Between 80 and 90 c)    Between 70 and 80 d)    Between 60 and 70 e)    Between 50 and 60 f)     Below 50
2	Write a program to ask the user to enter 10 integers and store it in an array. Traverse through the array and find print the sum of the odd integers, and the sum of the even integers
3	Write a program to ask the user to enter 10 integers and store it in an array . Traverse the array and find and print the number of odd integers, and the number of even integers.
4	Write a program to ask the user to enter 10 numbers and store it in an array. Traverse the array and find and print the total number of positive, Zero and negative numbers.
5	Write a program to ask the user to enter 10 lower case characters and store it in an array. Traverse the array and find and print the total number of characters greater than ‘m’ and the total number of characters less than ‘m’.
6	Write a program to store the string “Welcome to c++ programming” in an array. Traverse the array and find and print the total number of vowels in the string. The expected output is : The total number of vowels are : 7
7	Write a program to store the string “Object oriented programming” in an array. Traverse the array and print the characters in the even places on one line, followed by the characters in Even places : Ojc retdPorming Odd places : bet Oine rgamn
8	Write a program to store the string “object oriented programming” in an array. Print the characters in the even places in uppercase and the characters in the odd places in lowercase. OJC RETDPORMIG betoine rgamn
9	Economic recorder quality may be calculated from the equation Q= sqrt ( 2 * R * S / I ) Where R is the yearly requirement, S the setup cost and I the carrying cost per item. The values of R, S and for 15 items are to be entered by the user. Write a program using for loop and arrays to calculate the economic recorder quantity for each of these items.
10	Write a program to ask the user to enter 10 numbers and store it in an array. Ask the user to enter a number which is to be searched in the array. Traverse the array and print the positions at which the number is stored in the array, if found. Else print an appropriate message.
11	Write a program to ask the user to enter 10 characters and store it in an array. Traverse the array and print the uppercase characters in lowercase and the lowercase characters in uppercase.
12	Write a program to ask the user to enter10 integers and store it in an array. Ask the user to enter a number which is to be searched in the array. Traverse the array and print the positions at which the number or its multiples are stored in the array, if found. Else print an appropriate message
13	Write a program to ask the user to enter 10 characters and store  it an array. Ask the user to enter a character which is to be searched in the array Traverse the and print the positions at which the character is stored in the array, if found. Else print an appropriate message
14	Write a program to ask the user to enter a list of integers (maximum number of integers are 20). Traverse the array and find and print the number of times each integer occurs in the array
15	Write a program to read a list of test scores ( maximum number of scores are 100), calculate their mean and print a list of scores than the mean
16	Write a program to read a list of alphabets (maximum numbers of alphabets are 30 ). For each character in the string entered, find the number of occurrences of it within the string and print the character and the number of times it occurs.
17	Write a program to read a list of mark of students in any one subject ( maximum number of students are 28). Find the highest and second highest marks for the subject.
18	Write a program to read 10 integers entered by the user and store it in an array. Traverse the array and replace the 1st element with last element, the 2nd with the second last element and so on. Print the contents of the array.
19	Write a program to ask the user to enter a string ( maximum length of string is 20 ). Store it in an array. Traverse the array and find the length of the string.
20	Write a program to find whether a string is a palindrome. A palindrome reads the same whether it is read from left to right to right to left.