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C程序设计语言第二版英文答案.pdf
Table of Contents Index
The C Programming Language Exercise
The C Programming Language Exercise 1-1
The C Programming Language Exercise 1-2
The C Programming Language Exercise 1-3
The C Programming Language Exercise 1-4
The C Programming Language Exercise 1-5
The C Programming Language Exercise 1-6
The C Programming Language Exercise 1-7
The C Programming Language Exercise 1-8
The C Programming Language Exercise 1-9
The C Programming Language Exercise 1-10
The C Programming Language Exercise 1-11
The C Programming Language Exercise 1-12
The C Programming Language Exercise 1-13
The C Programming Language Exercise 1-14
The C Programming Language Exercise 1-15
The C Programming Language Exercise 1-16
The C Programming Language Exercise 1-17
The C Programming Language Exercise 1-18
The C Programming Language Exercise 1-19
The C Programming Language Exercise 1-20
The C Programming Language Exercise 1-21
The C Programming Language Exercise 1-22
The C Programming Language Exercise 1-23
The C Programming Language Exercise 1-24
The C Programming Language Exercise 2-1
The C Programming Language Exercise 2-2
The C Programming Language Exercise 2-3
The C Programming Language Exercise 2-4
The C Programming Language Exercise 2-5
The C Programming Language Exercise 2-6
The C Programming Language Exercise 2-7
The C Programming Language Exercise 2-8
The C Programming Language Exercise 2-9
The C Programming Language Exercise 2-10
The C Programming Language Exercise 3-1
The C Programming Language Exercise 3-2
The C Programming Language Exercise 3-3
The C Programming Language Exercise 3-4
The C Programming Language Exercise 3-5
The C Programming Language Exercise 3-6
The C Programming Language Exercise 4-1
The C Programming Language Exercise 4-2
The C Programming Language Exercise 4-3
The C Programming Language Exercise 4-4
The C Programming Language Exercise 4-5
The C Programming Language Exercise 4-6
The C Programming Language Exercise 4-7
The C Programming Language Exercise 4-8
The C Programming Language Exercise 4-12
The C Programming Language Exercise 4-13
The C Programming Language Exercise 4-14
The C Programming Language Exercise 5-1
The C Programming Language Exercise 5-2
The C Programming Language Exercise 5-3
The C Programming Language Exercise 5-4
The C Programming Language Exercise 5-5
The C Programming Language Exercise 5-6
The C Programming Language Exercise 5-7
The C Programming Language Exercise 5-8
The C Programming Language Exercise 5-9
The C Programming Language Exercise 5-10
The C Programming Language Exercise 5-11
The C Programming Language Exercise 5-13
The C Programming Language Exercise 5-14
The C Programming Language Exercise 6-1
The C Programming Language Exercise 6-3
The C Programming Language Exercise 6-4
The C Programming Language Exercise 6-5
The C Programming Language Exercise 7-1
The C Programming Language Exercise 7-2
The C Programming Language Exercise 7-3
The C Programming Language Exercise 7-6
The C Programming Language Exercise 7-8
The C Programming Language Exercise 7-9
The C Programming Language Exercise 8-1
The C Programming Language Exercise 8-3
The C Programming Language Exercise 8-4
The C Programming Language Exercise 8-6
《C 程序设计语言》英文
第 2 版的课后习题与答案
《C 程序设计语言》英文第 2 版的课后习题与答案
Table of Contents Index
The C Programming Language Exercise ........................................................................................ 4
The C Programming Language Exercise 1-1 .............................................................................. 247
The C Programming Language Exercise 1-2 .............................................................................. 248
The C Programming Language Exercise 1-3 .............................................................................. 249
The C Programming Language Exercise 1-4 .............................................................................. 250
The C Programming Language Exercise 1-5 .............................................................................. 251
The C Programming Language Exercise 1-6 .............................................................................. 253
The C Programming Language Exercise 1-7 .............................................................................. 254
The C Programming Language Exercise 1-8 .............................................................................. 255
The C Programming Language Exercise 1-9 .............................................................................. 256
The C Programming Language Exercise 1-10 ............................................................................ 258
The C Programming Language Exercise 1-11 ............................................................................ 260
The C Programming Language Exercise 1-12 ............................................................................ 263
The C Programming Language Exercise 1-13 ............................................................................ 264
The C Programming Language Exercise 1-14 ............................................................................ 269
The C Programming Language Exercise 1-15 ............................................................................ 280
The C Programming Language Exercise 1-16 ............................................................................ 281
The C Programming Language Exercise 1-17 ............................................................................ 285
The C Programming Language Exercise 1-18 ............................................................................ 286
The C Programming Language Exercise 1-19 ............................................................................ 290
The C Programming Language Exercise 1-20 ............................................................................ 292
The C Programming Language Exercise 1-21 ............................................................................ 294
The C Programming Language Exercise 1-22 ............................................................................ 297
The C Programming Language Exercise 1-23 ............................................................................ 299
The C Programming Language Exercise 1-24 ............................................................................ 326
The C Programming Language Exercise 2-1 .............................................................................. 335
The C Programming Language Exercise 2-2 .............................................................................. 336
The C Programming Language Exercise 2-3 .............................................................................. 338
The C Programming Language Exercise 2-4 .............................................................................. 343
The C Programming Language Exercise 2-5 .............................................................................. 346
The C Programming Language Exercise 2-6 .............................................................................. 352
The C Programming Language Exercise 2-7 .............................................................................. 353
1
《C 程序设计语言》英文第 2 版的课后习题与答案
The C Programming Language Exercise 2-8 .............................................................................. 354
The C Programming Language Exercise 2-9 .............................................................................. 356
The C Programming Language Exercise 2-10 ............................................................................ 357
The C Programming Language Exercise 3-1 .............................................................................. 359
The C Programming Language Exercise 3-2 .............................................................................. 365
The C Programming Language Exercise 3-3 .............................................................................. 369
The C Programming Language Exercise 3-4 .............................................................................. 372
The C Programming Language Exercise 3-5 .............................................................................. 375
The C Programming Language Exercise 3-6 .............................................................................. 377
The C Programming Language Exercise 4-1 .............................................................................. 379
The C Programming Language Exercise 4-2 .............................................................................. 381
The C Programming Language Exercise 4-3 .............................................................................. 385
The C Programming Language Exercise 4-4 .............................................................................. 387
The C Programming Language Exercise 4-5 .............................................................................. 391
The C Programming Language Exercise 4-6 .............................................................................. 396
The C Programming Language Exercise 4-7 .............................................................................. 403
The C Programming Language Exercise 4-8 .............................................................................. 405
The C Programming Language Exercise 4-12 ............................................................................ 406
The C Programming Language Exercise 4-13 ............................................................................ 408
The C Programming Language Exercise 4-14 ............................................................................ 409
The C Programming Language Exercise 5-1 .............................................................................. 412
The C Programming Language Exercise 5-2 .............................................................................. 413
The C Programming Language Exercise 5-3 .............................................................................. 419
The C Programming Language Exercise 5-4 .............................................................................. 422
The C Programming Language Exercise 5-5 .............................................................................. 424
The C Programming Language Exercise 5-6 .............................................................................. 427
The C Programming Language Exercise 5-7 .............................................................................. 431
The C Programming Language Exercise 5-8 .............................................................................. 433
The C Programming Language Exercise 5-9 .............................................................................. 435
The C Programming Language Exercise 5-10 ............................................................................ 438
The C Programming Language Exercise 5-11 ............................................................................ 440
The C Programming Language Exercise 5-13 ............................................................................ 463
The C Programming Language Exercise 5-14 ............................................................................ 480
The C Programming Language Exercise 6-1 .............................................................................. 483
2
《C 程序设计语言》英文第 2 版的课后习题与答案
The C Programming Language Exercise 6-3 .............................................................................. 491
The C Programming Language Exercise 6-4 .............................................................................. 499
The C Programming Language Exercise 6-5 .............................................................................. 506
The C Programming Language Exercise 7-1 .............................................................................. 508
The C Programming Language Exercise 7-2 .............................................................................. 511
The C Programming Language Exercise 7-3 .............................................................................. 514
The C Programming Language Exercise 7-6 .............................................................................. 516
The C Programming Language Exercise 7-8 .............................................................................. 520
The C Programming Language Exercise 7-9 .............................................................................. 522
The C Programming Language Exercise 8-1 .............................................................................. 523
The C Programming Language Exercise 8-3 .............................................................................. 524
The C Programming Language Exercise 8-4 .............................................................................. 526
The C Programming Language Exercise 8-6 .............................................................................. 528
3
《C 程序设计语言》英文第 2 版的课后习题与答案
The C Programming Language Exercise
整理：Xiao Guan（cnguan@gmail.com，
msn:ghpcn@hotmail.com,qq:237811553）
本答案为经典的 c 圣经《c 程序设计语言》英文的配
套答案，所列页码均为英文版的。本想整理为 pdf 格
式，考虑到程序能直接运行，最终还是决定为网页格
式，希望能给大家的学习带来帮助！感谢给出答案的
程序工程师，恕不列出他们名字
1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11
1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22
1.23 1.24 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09
2.10 3.01 3.02 3.03 3.04 3.05 3.06 4.01 4.02 4.03 4.04
4.05 4.06 4.07 4.08 4.12 4.13 4.14 5.01 5.02 5.03 5.04
5.05 5.06 5.07 5.08 5.09 5.10 5.11 5.13 5.14 6.01 6.03
6.04 6.05 7.01 7.02 7.03 7.06 7.08 7.09 8.01 8.03 8.04
8.06
Answer to Exercise 1-1
Run the "hello, world" program on your system. Experiment with leaving out parts of the
program, to see what error messages you get.
Murphy's Law dictates that there is no single correct answer to the very first exercise in the
book. Oh well. Here's a "hello world" program:
#include
int main(void)
{
printf("hello, world\n");
return 0;
}
4
《C 程序设计语言》英文第 2 版的课后习题与答案
As you can see, I've added a return statement, because main always returns int, and
it's good style to show this explicitly.
Answer to Exercise 1-2
Experiment to find out what happens when printf 's argument string contains \c, where c is
some character not listed above.
By 'above', the question is referring to:
\n (newline)
\t (tab)
\b (backspace)
\" (double quote)
\\ (backslash) We have to tread carefully here, because using a non-specified escape sequence
invokes undefined behaviour. The following program attempts to demonstrate all the legal
escape sequences, not including the ones already shown (except \n , which I actually need in
the program), and not including hexadecimal and octal escape sequences.
#include
int main(void)
{
printf("Audible or visual alert. \a\n");
printf("Form feed. \f\n");
printf("This escape, \r, moves the active position to the initial
position of the current line.\n");
printf("Vertical tab \v is tricky, as its behaviour is unspecified
under certain conditions.\n");
return 0;
}
Answer to Exercise 1-3
Modify the temperature conversion program to print a heading above the table.
#include
int main(void)
{
float fahr, celsius;
int lower, upper, step;
lower = 0;
upper = 300;
step = 20;
printf("F C\n\n");
fahr = lower;
while(fahr <= upper)
{
celsius = (5.0 / 9.0) * (fahr - 32.0);
printf("%3.0f %6.1f\n", fahr, celsius);
5
《C 程序设计语言》英文第 2 版的课后习题与答案
fahr = fahr + step;
}
return 0;
}
Answer to Exercise 1-4
Write a program to print the corresponding Celsius to Fahrenheit table.
#include
int main(void)
{
float fahr, celsius;
int lower, upper, step;
lower = 0;
upper = 300;
step = 20;
printf("C F\n\n");
celsius = lower;
while(celsius <= upper)
{
fahr = (9.0/5.0) * celsius + 32.0;
printf("%3.0f %6.1f\n", celsius, fahr);
celsius = celsius + step;
}
return 0;
}
Answer to Exercise 1-5
Modify the temperature conversion program to print the table in reverse order, that is, from
300 degrees to 0.
This version uses a while loop:
#include
int main(void)
{
float fahr, celsius;
int lower, upper, step;
lower = 0;
upper = 300;
step = 20;
printf("C F\n\n");
celsius = upper;
while(celsius >= lower)
{
fahr = (9.0/5.0) * celsius + 32.0;
printf("%3.0f %6.1f\n", celsius, fahr);
celsius = celsius - step;
}
return 0;
6
《C 程序设计语言》英文第 2 版的课后习题与答案
}
This version uses a for loop:
#include
int main(void)
{
float fahr, celsius;
int lower, upper, step;
lower = 0;
upper = 300;
step = 20;
printf("C F\n\n");
for(celsius = upper; celsius >= lower; celsius = celsius - step)
{
fahr = (9.0/5.0) * celsius + 32.0;
printf("%3.0f %6.1f\n", celsius, fahr);
}
return 0;
}
Chris Sidi notes that Section 1.3 Has a short For statement example, and "Based on that
example, I think the solution to 1.5:
a) should do fahr to celsius conversion (whereas the solutions on your page do celsius to fahr)
b) should be similar to the example and as small." He offers this solution:
#include
/* print Fahrenheit-Celsius table */
int
main()
{
int fahr;
for (fahr = 300; fahr >= 0; fahr = fahr - 20)
printf("%3d %6.1f\n", fahr, (5.0/9.0)*(fahr-32));
return 0;
}
Answer to Exercise 1-6
Verify that the expression getchar() != EOF is 0 or 1.
/* This program prompts for input, and then captures a character
* from the keyboard. If EOF is signalled (typically through a
* control-D or control-Z character, though not necessarily),
* the program prints 0. Otherwise, it prints 1.
*
* If your input stream is buffered (and it probably is), then
7
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