Clicker Questions - 11-Pointers
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#include <iostream>
#include <vector>
using namespace std;
int main()
{
vector <int *> v1;
vector <int> v2;
vector <int> *v3;
int i;
int *p;
v3 = &v2;
while (cin >> i) {
p = new int;
*p = i;
v1.push_back(p);
v2.push_back(*p);
}
for (i = 0; i < v1.size(); i++) *(v1[i]) += 2;
for (i = 0; i < v2.size(); i++) v2[i] += 10;
for (i = 0; i < v1.size(); i++) cout << *(v1[i]) << endl;
for (i = 0; i < v2.size(); i++) cout << v2[i] << endl;
for (i = 0; i < v3->size(); i++) cout << v3->at(i) << endl;
return 0;
}
Behold the program to the right. We compile it to the file a.out and then we run it with:
UNIX> echo 30 50 70 | ./a.out
- Question 1: What is the first line of output?
Answer
32
- Question 2: What is the second line of output?
Answer
52
- Question 3: What is the third line of output?
Answer
72
- Question 4: What is the fourth line of output?
Answer
40
- Question 5: What is the fifth line of output?
Answer
60
- Question 6: What is the sixth line of output?
Answer
80
- Question 7: What is the seventh line of output?
Answer
40
- Question 8: What is the eighth line of output? Enter a dash if there is no eighth line.
Answer
60
- Question 9: What is the nine line of output? Enter a dash if there is no ninth line.
Answer
80
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