Looping Designed to test skills: repetition structures (for and while loops), ap

Question

Looping

Designed to test skills: repetition structures (for and while loops), application of repetition structures (user input, accumulation, aggregation, etc.), incrementing the loop index, and conditional statements

Additional guidelines: complete and submit this first page with your other responses

1) The code below serves to demonstrate that a for loop functions like a while loop under specific conditions.

fprintf('Loop to show how a for loop operates ')

fprintf('as a specific type of while loop ')

fprintf('While loop ')

i = 1;

while i <= 10

disp (i)

i = i + 2;

end

fprintf('For loop ')

for i = 1:2:10;

   disp(i)

end

Mark the following in both loops using the guidelines given below.

a. Circle the variable used as the loop indexer

b. Draw a square around the initial value of the index

c. Draw a triangle around the final value of the index

d. Underline the number used to increment the value of the index between loops

2) Write the word

Explanation / Answer

1)

A) Loop Indexer is variable "i";

B) for "whille" loop initial value of index is line 4 i.e, "i = 1;".

and for "for" loop initial value of index is in line 10 "for i = 1:2:10", so i=1 is initial value of loop indexer.

C) for "whille" loop final value of index is "i = i + 2;" and after loop execution i will become 11;

and for "for" loop final value of index is in line 10 "for i = 1:2:10", and after loop execution i will become 11;

D) for "whille" loop number used to increment the value of the index between loops is 2 in line  "i = i + 2;"

and for "for" loop number used to increment the value of the index between loops is "for i = 1:2:10" in line 10 and after loop execution i will become 11;

2)

A) for

B) for

C) while

D) for

3)

A) while loop inside a for loop

B) for loop inside a while loop

C) for loop inside a for loop

4)

#include<stdio.h>
int main()
{
int i=0;
int x[3],y[3],z[3];
char a[3][50];
while(i<3)
{
   printf("Enter student name ");
   scanf("%s",a[i]);
   printf("Enter marks of quiz 1 ");
   scanf("%d",&x[i]);
   printf("Enter marks of quiz 2 ");
   scanf("%d",&y[i]);
   printf("Enter marks of quiz 3 ");
   scanf("%d",&z[i]);
   i++;
}
int j=0;
while(j<i)
{
   printf("Student Name%s ",a[j]);
   printf("marks%d ",x[j]+y[j]+z[j]);
   j++;
}
return 0;
}

This code will ask for student name then his/her marks in all three quizes for 3 times.

and finally print student name followed by his/her total marks for all 3 students.

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