2. Which of the following explicit data type conversions in the code above is unsafe? [A] (float) (b / a)
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1 1. Given that a and b are integer variables and both variables are currently storing a positive value, and a is greater than b, which of the following is FALSE about the result of a % b? [A]The result cannot be greater than b. [B] The result cannot equal b. [C] The result cannot be 0. Use the code below for problems 2 3 int a = 3; int b = 5; int c; float d = 3.75; c = (float) (b / a); c += a / (float) b + 0.5; c = (int) d / b + 0.5; printf("c = %d\n", c); 2. Which of the following explicit data type conversions in the code above is unsafe? [A] (float) (b / a) [C] (int) d [B] (float) b 3. What is the output generated by the code above? [A] c = 0 [B] c = 1 [C] c = 2 4. Which of the following is used to represent the user-defined functions and the order in which they are called in a program? [A] A Flowchart [C] A Specification Chart [B] A Structure Chart [D]None of the Above 5. According to course standards, which of the following should always be given local scope? [A]Function prototypes. [C] Variables. [B] Function definitions. 6. Which of the following is TRUE regarding scope? [A]It is poor programming style to reuse identifiers within the same scope. [B] It is poor programming style to reuse identifiers with non-overlapping scope. [C] It is always poor programming style to reuse identifiers. 7. Which of the following can be detected by the compiler? [A]A reference to an array index value that exceeds the defined limits of the array. [B] A loop control expression that will result in an infinite loop. [C] A function call that includes fewer parameters than was specified in the function prototype. 8. Which of the following refers to the act of identifying individual sub-tasks in a larger problem which will be ultimately coded as a user-defined function? [A] Prototyping [C] Declaring [B] Factoring
2 int month = 3; int year = 1900; int day = 17; Use the code below for problem #9 switch(month) case 5: day += 30; case 4: day += 31; case 3: day += 28 + ((!(year % 4) && (year % 100))!(year % 400)); case 2: day += 31; printf("day = %d\n", day); 9. What is the output generated by the code above? [A] day = 74 [B] day = 75 [C] day = 76 int a = 3; int b = 5; int result; Use the code below for problem #10 if(a && ++b - 6) result = 1; else if(a > 0) result = 2; else result = 0; printf("a = %d b = %d\n", a, b); 10. Which of the following is the output of the print statement of the code above? [A] a = 2 b = 6 [C] a = 0 b = 0 [B] a = 3 b = Which of the following statements regarding selection constructs is FALSE? [A] The default in a switch statement is not required. [B] No two else if's can represent the same condition. [C] Conditional expressions can be used with floating-point or integer data types. Use the code below for problem #12 int c = -1; int d = 1; int result; result = --d && ++c; printf("c = %d d = %d\n", c, d); 12. What is the output generate by the code segment on the left? [A] c = 0 d = 0 [B] c = -1 d = 0 [C] c = 0 d = -1
3 #define MULTIPLE 0 Use the code below for problems int main() int x = 35; int y = 7; int z = -1; switch(x % y == MULTIPLE) case MULTIPLE: z = 1; break; default: z = 0; break; printf("z = %d\n", z); return(0); 13. Which of the following switch statement rules is being violated by the code segment above? [A] The control expression must be integral. [B] Each case label is the keyword case followed by a constant expression. [C] No two case labels can have the same value. 14. Which of the following is the output generated by the code segment above? [A] z = -1 [C] z = 1 [B] z = Which of the following logical expressions is the complement of the expression below? a > b && a > c [A] a > b a > c [B] a < b a < c [C] a <= b && a <= c 16. Which of the following logical expressions is the complement of the expression below? a!= b b!= c a!= c [A] a == b b == c a == c [B] a!= b && b!= c && a!= c int x = 3; int y = 2; int z = 3; Use the code below for problem #17 printf("result #1 = %d\n", x <= 3 y >= 2 && z!= 3); printf("result #2 = %d\n", x <= 3 (y >= 2 && z!= 3)); printf("result #3 = %d\n", (x <= 3 y >= 2) && z!= 3); 17. Which of the following is TRUE regarding the code segment above? [A] All three results will generate the same value. [B] Only results #1 and #3 will generate the same value. [C] Only results #1 and #2 will generate the same value. [C] a == b && b == c && a == c
4 Use the code below for problems int x = 3; int y = 2; int z = 1; int a = z; int b; a = x!= y && y!= z? x : y; b = z > 1? x : z < 1? y : z; 18. What is the first line of output generated by the code segment on the left? [A] a = 1 [B] a = 2 [C] a = 3 printf("a = %d\n", a); printf("b = %d\n", b); 19. What is the second line of output generated by the code segment above? [A] b = 1 [C] b = 3 [B] b = 2 Use the code below for problems #include<stdio.h> 2 #include<math.h> 3 4 int main() 5 6 int a = 0; 7 int b = 11010; 8 int c = 0; 9 10 do c += b % 10 * pow(2, a); 13 a++; 14 b /= 10; 15 while(b!= 0); printf("a = %d\n", a); 18 printf("c = %d\n", c); return(0); What is the first line of output generated by the program above? [A] a = 7 [C] a = 5 [B] a = What is the second line of output generated by the program above? [A] c = 26 [C] c = 28 [B] c = Which of the following is NEVER a value stored by the integer variable b during the execution of the above program? [A] 1101 [C] 11 [B] Which of the following would produce the same results if it replaced the expression on line #12 in the program above? [A] c += pow(2, a) * b % 10; [C] c = b % 10 * pow(2, a) + c; [B] c = b % 10 + c * pow(2, a);
5 int sz = 5; int row; int col; Use the code below for problems for(row = 0; row <= sz; row++) for(col = 0; col <= sz; col++) if(col < sz - (sz - row)) printf("%d", sz); else printf("%c", '$'); printf("\n"); 24. Which of the following is the first line of output generated by the code segment above? [A] $$$$$$ [C] 5$$$$$ [B] $$$$$ 25. Which of the following is the last line of output generated by the code segment above? [A] 55555$ [C] [B] What is the total number of characters ($ and 5) displayed to the monitor? [A]30 [C] 25 [B] 36
6 #include<stdio.h> #include<string.h> Use the code below for problems #define SIZE 31 int main() char str1[size] = "Test"; char str2[size] = "Tests"; char str3[size] = "tests"; char str4[size] = "Tset"; int ct = 0; printf("compare = %d\n", strcmp(str1, str4)); strcmp(str1, str2) > 0? ct++ : ct--; strcmp(str1, str3) > 0? ct++ : ct--; printf("ct = %d\n", ct); return(0); 27. Which of the following describes the integer output of the first print statement in the program above? [A]The integer will be a positive value. [B] The integer will be zero. [C] The integer will be a negative value. 28. What is the output of the second print statement in the program above? [A] ct = -2 [B] ct = 0 [C] ct = 2
7 Use the code below for problems #include<stdio.h> #include<math.h> int makecount(int); int nexttest(int, int); int main() int x = 37473; int y; int z; y = makecount(x); z = nexttest(x, y); printf("y = %d\n", y); printf("z = %d\n", z); 29. What is the first line of output generated by the program on the left? [A] y = 4 [B] y = 5 [C] y = What is the second line of output generated by the program on the left? [A] z = 1 [B] z = 0 [C] z = -1 return(0); int makecount(int x) int ct = 0; do ct++; x /= 10; while(x > 0); return(ct); int nexttest(int x, int y) int z = 1; int ct = 1; int a; int b; do a = x / (int)pow(10, ct - 1) % 10; b = x / (int)pow(10, y - ct) % 10; if(a!= b) z--; while(z == 1 && ct++ <= y / 2); return(z); 31. What is the second line of output generated by the program above if the integer variable x in main was initialized to ? [A] z = 1 [B] z = 0 [C] z = -1
8 #define SIZE 11 Use the code below for problem #32 void addnum(int); int main() int x[11] = 3, 2, 5, 4, 11, 8, 9, 10, 7, 6, 1; int i; for(i = SIZE; i > 0; --i) addnum(x[i - 1]); printf("x[3] = %d\n", x[3]); return(0); void addnum(int x) x++; 32. What is the output generated by the code above? [A] x[3] = 4 [B] x[3] = 5 [C] x[3] = 6 #define SIZE 11 Use the code below for problem #33 void addnum(int[]); int main() int x[11] = 3, 2, 5, 4, 11, 8, 9, 10, 7, 6, 1; addnum(x); printf("x[3] = %d\n", x[3]); return(0); void addnum(int x[]) int i; for(i = 0; i < SIZE; i++) x[i] = x[i] + 1; 33. What is the output generated by the code above? [A] x[3] = 6 [B] x[3] = 5 [C] x[3] = 4
9 #include<stdio.h> Use the code below for problem #34 int main() int x[5] = 21, 27, 29, 33, 37; int i; int j; int ct = 0; for(i = 0; i < 5; i++) for(j = 2; j <= x[i] / 2; j++) if(x[i] % j == 0) j = x[i]; if(x[i]!= j - 1) ct++; printf("ct = %d\n", ct); return(0); 34. What is the output generated by the code above? [A] ct = 4 [B] ct = 3 [C] ct = 2 #include<stdio.h> Use the code below for problem #35 int main() int array[5] = 5, 4, 3, 2, 1; int i = 3; while(i >= 0) array[i] += array[i + 1] % array[i]; i--; return(0); 35. Which value is NOT found in the array after the code above has been executed? [A] 7 [B] 5 [C] 3
10 int a = 3; int b; int *x; int *y; Use the code segment below for problems x = &a; y = x; *x = 1; a = 5; printf("*x = %3d *y = %3d a = %3d\n", *x, *y, a); x = &b; b = 11; printf("*x = %3d *y = %3d a = %3d b = %3d\n", *x, *y, a, b); 36. What is the output generated by the first print statement in the code segment above? [A] *x = 1 *y = 1 a = 5 [B] *x = 5 *y = 1 a = 5 [C] *x = 5 *y = 5 a = What is the output generated by the second print statement in the code segment above? [A] *x = 11 *y = 11 a = 5 b = 11 [B] *x = 11 *y = 5 a = 5 b = 11 [C] *x = 5 *y = 1 a = 5 b = Which of the following is FALSE regarding arrays? [A]All elements of an array share a single data type. [B] All elements of an array share a single variable name. [C] All elements of an array have a unique index value. Use the array below for problem #39 int data[13] = 10, 10, 10, 14, 15, 16, 18, 20, 21, 24, 24, 24, 24; 39. Which of the following represents the number of comparisons output from lab #12 given the array above and the target value 24? [A] Total number of comparisons required: 5 [B] Total number of comparisons required: 6 [C] Total number of comparisons required: 7 Use the array below for problem #40 int data[13] = 10, 10, 10, 14, 15, 16, 18, 20, 21, 21, 21, 25, 33; 40. Which of the following represents the number of comparisons output from lab #12 given the array above and the target value 15? [A] Total number of comparisons required: 3 [B] Total number of comparisons required: 4 [C] Total number of comparisons required: 5
11 Use the array below for problem #41 int data[13] = 10, 5, 10, 8, 1, 1, 8, 8, 21, 21, 21, 5, 3; 41. Which of the following represents the number of comparisons output from lab #12 given the array above and the target value 1? [A] Total number of comparisons required: 13 [B] Total number of comparisons required: 5 [C] Total number of comparisons required: 6 Use the array below for problems int array[13] = 10, 12, 13, 14, 15, 16, 18, 20, 21, 23, 24, 25, 33; 42. Which of the following represents the values of the variable mid in the binary search algorithm when applying that algorithm to seek the target value 14? [A] 6, 2, 3 [C] 6, 3, 4 [B] 6, 2, 4, Which of the following represents the values of the variable mid in the binary search algorithm when applying that algorithm to seek the target value 22? [A] 6, 9, 8 [C] 6, 9, 7, 8 [B] 6, 9, Which of the following is used to redirect input from a file to the executable (a.out) file? [A] > [C] < [B] << 45. Which of the following is false regarding the scanf function in the C programming language and the fscanf function in MATLAB (or Octave)? [A] The fscanf function in MATLAB (or Octave) has no address list similar to the scanf function in C. [B] The fscanf function in MATLAB (or Octave) includes the name of the file handle variable to indicate the source of the data. [C] The format string in C's scanf function uses double quotes while the format string in MATLAB's fscanf function uses single quotes. Given the following array: int x[7] = 8, 7, 2, 4, 3, 1, 5; And the array after two passes through one of the three sorting algorithms: Which sorting algorithm has been applied? [A] Selection Sort [B] Insertion Sort [C] Bubble Sort [D] More than one of the above.
12 Given the following array: int x[7] = 8, 7, 2, 4, 3, 1, 5; And the array after two passes through one of the three sorting algorithms: Which sorting algorithm has been applied? [A] Selection Sort [B] Insertion Sort [C] Bubble Sort [D] More than one of the above. Given the following array: int x[7] = 3, 5, 4, 6, 8, 7, 9; And the array after two passes through one of the three sorting algorithms: Which sorting algorithm has been applied? [A] Selection Sort [B] Insertion Sort [C] Bubble Sort [D] More than one of the above.
13 Given the following array: int x[7] = 3, 5, 4, 6, 8, 7, 9; And the array after two passes through one of the three sorting algorithms: Which sorting algorithm has been applied? [A] Selection Sort [B] Insertion Sort [C] Bubble Sort [D] More than one of the above. 50. What should you be sure to do when contacting the instructor regarding your course grade? [A]Wait until minimums for each letter grade are announced. [B] Be sure to use your Purdue address and state which course you were taking. [C] Provide specific concerns you have with specific assignments as grades in the course will be based on points earn and not factors external to the course. [D]All of the above.
14 This page lists C operators in order of precedence (highest to lowest). Their associativity indicates in what order operators of equal precedence in an expression are applied. Operator Description Associativity () []. -> ! ~ (type) * & sizeof Parentheses (function call) (see Note 1) Brackets (array subscript) Member selection via object name Member selection via pointer Postfix increment/decrement (see Note 2) Prefix increment/decrement Unary plus/minus Logical negation/bitwise complement Cast (change type) Dereference Address Determine size in bytes left-to-right right-to-left * / % Multiplication/division/modulus left-to-right + - Addition/subtraction left-to-right << >> Bitwise shift left, Bitwise shift right left-to-right < <= > >= Relational less than/less than or equal to Relational greater than/greater than or equal to left-to-right ==!= Relational is equal to/is not equal to left-to-right & Bitwise AND left-to-right ^ Bitwise exclusive OR left-to-right Bitwise inclusive OR left-to-right && Logical AND left-to-right Logical OR left-to-right?: Ternary conditional right-to-left = += -= *= /= %= &= ^= = <<= >>= Assignment Addition/subtraction assignment Multiplication/division assignment Modulus/bitwise AND assignment Bitwise exclusive/inclusive OR assignment Bitwise shift left/right assignment right-to-left, Comma (separate expressions) left-to-right
15 ASCII Table Char Dec Char Dec Char Dec Char Dec (nul) 0 space 64 ` 96 (soh) 1! 33 A 65 a 97 (stx) 2 " 34 B 66 b 98 (etx) 3 # 35 C 67 c 99 (eot) 4 $ 36 D 68 d 100 (enq) 5 % 37 E 69 e 101 (ack) 6 & 38 F 70 f 102 (bel) 7 39 G 71 g 103 (bs) 8 ( 40 H 72 h 104 (ht) 9 ) 41 I 73 i 105 (nl) 10 * 42 J 74 j 106 (vt) K 75 k 107 (np) 12, 44 L 76 l 108 (cr) M 77 m 109 (so) N 78 n 110 (si) 15 / 47 O 79 o 111 (dle) P 80 p 112 (dc1) Q 81 q 113 (dc2) R 82 r 114 (dc3) S 83 s 115 (dc4) T 84 t 116 (nak) U 85 u 117 (syn) V 86 v 118 (etb) W 87 w 119 (can) X 88 x 120 (em) Y 89 y 121 (sub) 26 : 58 Z 90 z 122 (esc) 27 ; 59 [ (fs) 28 < 60 \ (gs) 29 = 61 ] (rs) 30 > 62 ^ 94 ~ 126 (us) 31? 63 _ 95 (del) 127
16 Lab Time Lab Day Location and TA Section 7:30 Tuesday SC 189 Jessica Sparks :30 Tuesday SC 189 Sebastian Lee :30 Tuesday SC 189 Amir Warsanah :30 Tuesday SC 189 Nicki Schrank :30 Wednesday SC 189 Kuan-Po Chen :30 Wednesday SC 189 Caleb Bean :30 Wednesday SC 189 Alyssa Welles :30 Thursday SC 189 Ryne Rayburn :30 Thursday SC 289 Xi Luo :30 Thursday SC 189 Mike James :30 Thursday SC 189 John Grabarczyk 2101
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