CPA Chapter 3 Assessment Online 100%

1. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int main() { int t[3] = { 3, 2, 1 }, *ptr = t + 1; (*(ptr + 1))++; *ptr++; cout << t[1] << t[2]; return 0; }

33
22
32
23

2. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int main() { float x = 3.14, *p = &x; p[0] = ++x; cout << x; return 0; }

0.0
6.28
4.14
3.14

3. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int main() { int tab[5] = { 1, 2, 4, 8, 16 }; int *p1 = tab, *p2 = tab + 4; for(int *p = p1 + 1; p < p2; p++) *p = p[-1] * 2; cout << tab[1] << tab[2]; return 0; }

12
01
24
48

4. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int main() { float f[2]; float *p1 = f, *p2 = p1 + 1; cout << (p2 - p1) / sizeof(float); return 0; }

0
2
1
3

5. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; float fun(float arg) { return arg * arg + arg + 1; } int main() { cout << fun(fun(1.0)); return 0; }

16
10
7
13

6. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int fun(float a, float b) { return a / b; } int main() { cout << fun(fun(1.0,2.0),fun(2.0,1.0)); return 0; }

0
-1
1
2

7. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; float Float(float x) { return 2 * x / (.5 * x); } void Void(int n) { float v = n; while(n) { v = Float(v); n >>= 1; } cout << v; } int main() { Void(4); return 0; }

4
10
8
6

8. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int f1(int a) { return ++a; } int f2(int &a) { return ++a; } int f3(int *a) { return *a + 1; } int main() { int value = 2; cout << f1(value); cout << f2(value); cout << f3(&value); return 0; }

333
456
334
445

9. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int f1(int *a) { return *a; } int *f2(int *a) { return a; } int *f3(int &a) { return &a; } int main() { int value = 2; cout << f1(f2(f3(value))); return 0; }

1
3
0
2

10. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int f1(int *a) { return *a + 1; } int *f2(int *a) { return a + 1; } int *f3(int &a) { return &a + 1; } int main() { int t[] = {0, 1, 2, 3}; cout << f1(f3(*f2(t))); return 0; }

2
0
1
3

11. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int fun(int p1 = 1, int p2 = 1) { return p2 << p1; } int main() { cout << fun(fun(),fun(2)); return 0; }

4
32
16
8

12. Question

1 points

What is the output of the following program? #include <iostream> #include <string> using namespace std; string fun(string &t, string s = "", int r = 2) { while(--r) s += s; t = t + s; return s; } int main() { string name = "x"; cout << fun(name, name); cout << name; return 0; }

xxxxxx
xxxx
xxxxx
xxx

13. Question

1 points

What is the output of the following program? #include <iostream> #include <string> using namespace std; string fun(string t, string s = "x", int r = 1) { while(--r) s += s; t = t + s; return s; } int main() { string name = "a"; cout << fun(name); cout << name; return 0; }

xxxxaaaa
xxxaaa
xxaa
xa

14. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int fun(int a, int b) { return a + b; } int fun(int a, char b) { return b - a; } int fun(float a, float b) { return a * b; } int main() { cout << fun(1,0) << fun('a','c') << fun(2.f,2.f); return 0; }

248
481
124
012

15. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int fun(long a, long b = 1) { return a << b; } int fun(int a, char b = 'z') { return b - a; } int fun(float a, float b = 0) { return a * b; } int main() { cout << fun(1L) << fun('x') << fun(2e0f); return 0; }

121
220
112
234

16. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int fun(long a) { return a / a; } int fun(int a) { return 2 * a; } int fun(double a = 3.0) { return a; } int main() { cout << fun(1000000000L) << fun (1L) << fun(1.f); return 0; }

111
333
222
444

17. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int fun(int t[]) { t[0] += t[1]; return t[0]; } int main() { int t[] = { 5,6,7 }; cout << fun(t); cout << t[0]; return 0; }

1111
115
56
116

18. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int *make(int v) { int *p = new int; *p = v + 1; return p; } int *play(int &v) { cout << ++v; return &v; } void remove(int *v) { delete v; } int main() { remove(play(*make(3))); return 0; }

2
3
5
4

19. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; int main() { int *val = new int; *val = sizeof(val) / sizeof(int *); int *tab = new int[*val]; tab[0] = *val; delete val; cout << *tab; delete [] tab; return 0; }

1
4
0
2

20. Question

1 points

What is the output of the following program? #include <iostream> using namespace std; struct s { float *f; }; void make(s *p, float x = 10) { float *f = new float; *f = sizeof(*f) / sizeof(float) * 10; p->f = f; } int main() { s *ss = new s; make(ss); cout << *(*ss).f; delete ss->f; delete ss; return 0; }

80
10
20
40

CPA Chapter 3 Assessment Online 100%