Question

For any element in keysList with a value smaller than 40, print the corresponding value in itemsList, followed by a space.

Answer 1

Answer:

1. #include <iostream>
3. using namespace std;
5. int main()
6. {
7.    const int SIZE_LIST = 4;
8.    int keysList[SIZE_LIST];
9.    int itemsList[SIZE_LIST];
10.    int i;
11.    keysList[0] = 13;
12.    keysList[1] = 47;
13.    keysList[2] = 71;
14.    keysList[3] = 59;
15.    itemsList[0] = 12;
16.    itemsList[1] = 36;
17.    itemsList[2] = 72;
18.    itemsList[3] = 54;
19.    
20.    for(i=0; i < SIZE_LIST; i++){
21.        
22.        if(keysList[i] < 40){
23.            cout<<itemsList[i]<< " ";    
24.        }
25.    }
26.    return 0;
27. }

Explanation:

In the given code we have two parallel arrays with predefined values (Line 11 - 18). To check if any value from keysList below 40, create a for loop to traverse through the array and in the loop create an if statement to check the each of the keysList value (Line 20 - 22). If any value from keysList is below 40, use the current i value as an index to get the corresponding value from itemsList (Line 23) and print it out along with a single space " ".