# Single Dimensional Array – Assignment-1

Q1.Write C++ statements to do the following:
Declare and initialize an array of scores of 20 student of type int.
1.  Display the 10th component of the array scores.
2.  Display the 5th component of the array scores
3.  Set the value of the 8th component of the array scores to 35.
4. Set the value of the 6th component of the array scores to the sum of the 9th and 12th components of the array scores.
5. Set the value of the 14th component of the array scores to 2 times the value of the 7th component minus 25.
6. Display the array scores so that 4 components per line are printed
2.  a. Given declaration, answer the questions.
int a ={3, 7, 4, 9, 6};
(i). Give the value of  a.
(ii).Give the value of  a.
b. Given declaration, answer the questions.
int a = {3, 7, 4, 9, 6};
(i)  What is a + a?
(ii) What is a – a?
(iii) What is a + 2?
(iv)  What is a[1 + a]?
c. Given declaration, answer the questions
int a = {3, 7, 4, 9, 6};
for(i = 0; i <= 4; i = i + 1}
cout<< a[4 – i];
(i)  When i is 0, What is the value of a[4 – 0]
(ii) When i is 2, What is the value of a[4 – 2]
(iii) When i is 4, what is printed?
(iv)What is the final output of this code?
d.Write a code to print the array in reverse order.
3. Give output (Please show the memory diagram/dry run)
(i) #include <iostream.h>
void main()
{
int count = 0, a = {3, 7, 4, 9, 6}, i, sum=0;
for(i = 0; i <= 4; i = i + 1)
if(a[i] > 5)
sum = sum + a[i];
cout<< sum;
}
(ii) #include <iostream.h>
void main()
{
int count = 0, a = {3, 7, 4, 9, 6}, i;
for(i = 0; i <= 4; i = i + 1)
if(a[i] > 5)
{
count = count + 1;
cout<<a[i];
}
cout<< count;
}
(iii)#include <iostream.h>
void main()
{
int a = {3, 7, 4, 9, 6}, i, sum=0, count=0;
for(i = 0; i <= 4; i = i + 1)
{
if( a[i] > 5 )
sum = sum + a[i];
if( a[i] <= 5 )
count = count + 1;
}
cout<< sum;
cout<< count;
}