浙江大学2014–2015学年冬季学期
《程序设计基础》课程期末考试试卷
课程号： 211Z0040 ， 开课学院： 计算机学院__ 考试试卷：√A卷、B卷（请在选定项上打√）
考试形式：√闭、开卷（请在选定项上打√），允许带 ∕入场 考试日期： 2015 年 01 月 28 日,考试时间： 120 分钟
诚信考试，沉着应考，杜绝违纪.
考生姓名： 学号： 所属院系： _ (注意：答题内容必须写在答题卷上，写在本试题卷上无效)
Section 1: Single Choice(2 marks for each item, total 20 marks)
1. Which one below is NOT a valid identifier in the C programming language? _____.
A. printf B. _ever C. “char” D. true
2. Given a, b and c as three double variables, which one below is NOT equivalent to a/b/c? _____. A. (a/b)/c B. a/(b/c) C. a/(b*c) D. a/c/b 3. Which function header is NOT correct? _____.
A. void f(void) B. void f(int i) C. void f(int i,j) D. void f(int i, int j) 4. Given the code below, what will be the value of i after the loop? _____.
int i;
while ( i<10 ) i++; A. 10 B. 11 C. 9 D. None of above.
5. Given the declarations: int a[5], *p=a; which expression is equivalent to the
expression p+1 ? _____.
B. &a+1 A．a[1]
y after executing y=(*p)++; ? _____.
A．y=1 B．y=2
C．a+1
D. p[2]-1
6. For the declarations: int a[]={1,2,3,4,5},*p=a+1, y; what will be the value of variable
C．y=3
D. Syntax error.
7. For the declarations: int *p[2], n[5]; which assignment expression is correct? _____ .
B. p=&n[0] D. p[0]=n++ A．p=n C．p[0]=n
8. Given the following code fragment, the loop condition str[i]!=’\\0’ could be replaced by
which choice? ______. char str[20]=”hello, world”;
for (i = 0; str[i] != ?\\0?; i++) putchar(str[i]); A．str[i]
B．i < 20
C．!(str[i] = ?\\0?)
D．i <= 20
“Fundamentals of Programming” Term Examination Paper, Jan 28, 2015 1 / 8
9. Which function-calling statement could be used, to open a text file entitled “abc.txt”
and located in the folder “user” within D diskette, which is opened for the reading and writing operation? ______. A．fopen(\C. fopen(\A．int *p[5]; scanf(\C．int n[10], *p=n; scanf(\
B. fopen(\D．fopen(\B．int *p; scanf(\
D．int n, *p; *p= &n; scanf(\
10. In the following code fragments, which item is completely correct? ______.
Section 2: Fill in the blanks（2 marks for each item, total 30 marks）
1. The value of expression 3/6*2.0 is ________. 2. The value of expression '9'-'0' is _______. 3. Given:
char c = 255; printf(\
The output should be: _______. 4. Given:
int b=50;
if ( 1 5. The following code fragment will print out _____________________________. void swap(int *pa, *pb) { int *t = pa; pa = pb; pb = t; } int a = 1, b = 2; swap(&a, &b); printf(“%d#%d#”, a, b); 6. The output of the code below is ________. char *s=”abc”; while ( *s++ ) if (*s) putchar(*s-1); 7. Given the declaration: char *s;, write a statement which could be used to allocate 10 bytes from the system and assign the first address to the variable s _____________. 8. Try to use the function-call of fscanf, to replace the function-call of scanf(”%d”,&m); ______________________________________________. 9. Given the declaration: char *s; , write an expression without any function-calling, which is equivalent to the expression strlen(s)==1 _____________________. 10. Given the declaration: int a[3][2]={1,2,3,4,5,6}; what is the value of expression (a[1]+1)[0] ?____________. “Fundamentals of Programming” Term Examination Paper, Jan 28, 2015 2 / 8 11. The value of expression !*(“2015-01-28”+5) is ______________. 12. The output of the code below is ________. char x[ ]=”hello,world\\012345”; printf(”%d#%d#”，sizeof(x)，strlen(x)); 13. The output of the code below is ________. char *a[3]={\ printf(\printf(\ 14. Given the declarations: FILE *infp, *outfp;, write a statement: it is used to write a letter, which is read from a file pointer infp, into the file pointer outfp, which points to an output file. ________________________________________________________. 15. Given the declaration: char s[10]=”12345678”; what will be the value of strlen(s) after executing strcpy(s+2,s+5); ________. Section 3: Read each of the following programs and answer questions (５marks for each item, total 30 marks) 1. What is the output of the following program? _____________________________. #include void swap(int *a, int b) { int m, *n; n=&m; *n=*a; *a=b; b=*n; } int main() { int x=8,y=1; swap(&x,y); printf(\} 2. When input: 123, what is the output of the following program_______________. #include int f(char s[], int b) { int i=0, n=0; “Fundamentals of Programming” Term Examination Paper, Jan 28, 2015 3 / 8 while (s[i]!=?\\0?) { n=n*b+s[i]-'0'; i++; } return n; } int main() { char s[20]; int n; scanf(\ printf(\} 3. When the following program?s input is ing This is a long test string the output of the program is __________. #include int main() { char s[100], t[100], ch, *p; int count, i; gets(s); gets(t); for (i = 0; i < strlen(s); i++) { count=0; p = t; while (*p != '\\0') { if (*p == s[i]) count++; p++; } printf(\ } } 4. The output of the following program?s is ____________. #include void fun(char *s[], int n) { char *t; int i,j; “Fundamentals of Programming” Term Examination Paper, Jan 28, 2015 4 / 8 for (i=0; i if (strlen(s[i])> strlen(s[j])) { t=s[i]; s[i]=s[j]; s[j]=t; } } int main() { char *s[]={\ “has reached”, “top level\ fun(s,4); printf(\ } 5. The following program will print out ____________. #include void p1(int v[]) { int i,j,temp; for (i=1; i<4; i++) for (j=i-1; j>=0&&v[j] v[j]=v[j+1]; v[j+1]=temp; } } void p2(int v1[], int v2[]) { int i=0, j=0; while (i<4 && j<4) { if (v1[i]>v2[j]) { printf(\ } else { printf(\ } } while (i<4) printf(\ while (j<4) printf(\} main() { int a[2][4]={{5,3,7,2},{4,1,8,6}}; p1(a[0]); p1(a[1]); p2(a[0],a[1]); } “Fundamentals of Programming” Term Examination Paper, Jan 28, 2015 5 / 8