tricks.ps

来自「c programming pearls answer」· PS 代码 · 共 1,167 行 · 第 1/2 页

4320 5339 3960 5555 Dl
(LMH)3453 5943 w
(LHM)3993 5835 w
(MLH)3633 5475 w
20 H f
(Why it failed)2 1092 1 1008 6911 t
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-5)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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6 pagesetup
20 H f
(A Quiz)1 602 1 2903 960 t
(How much water \257ows out of the Mississippi River)8 4444 1 720 1560 t
(per day?)1 782 1 720 1800 t
20 HI f
(One Possible Answer.)2 1974 1 720 2640 t
20 H f
(The river is about a mile)5 2140 1 2806 2640 t
(wide, twenty feet deep, and \257ows at \256ve miles per)9 4420 1 720 2880 t
(hour.)720 3120 w
(1 mile)1 566 1 1152 3480 t
20 S f
(\264)1806 3480 w
20 H f
(1)2004 3480 w
20 HI f
(/)2132 3480 w
20 H f
(250 mile)1 790 1 2204 3480 t
20 S f
(\264)3082 3480 w
20 H f
(120 miles)1 890 1 3280 3480 t
20 HI f
(/)4186 3480 w
20 H f
(day)4258 3480 w
20 S f
(~)1512 3800 w
(~)1512 3850 w
20 H f
(1)1710 3840 w
20 HI f
(/)1838 3840 w
20 H f
(2 mile)1 566 1 1910 3840 t
17 H f
(3)2490 3760 w
20 HI f
(/)2617 3840 w
20 H f
(day)2689 3840 w
(It discharges roughly one-half cubic mile per day.)7 4362 1 720 4200 t
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-6)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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7 pagesetup
20 H f
(Two Answers Are Better Than One)5 3112 1 1504 960 t
( much as \257ows in.)4 1594( As)1 346(How much water \257ows out?)4 2452 3 720 1560 t
(The Mississippi basin is about 1000 by 1000 miles,)8 4518 1 720 2040 t
(and the annual runoff from rainfall is about one foot.)9 4604 1 720 2280 t
(Yearly drainage is)2 1606 1 720 2520 t
(1000 miles)1 1002 1 936 2880 t
20 S f
(\264)2026 2880 w
20 H f
(1000 miles)1 1002 1 2224 2880 t
20 S f
(\264)3314 2880 w
20 H f
(1)3512 2880 w
20 HI f
(/)3640 2880 w
20 H f
(5000 mile)1 902 1 3712 2880 t
20 HI f
(/)4630 2880 w
20 H f
(year)4702 2880 w
20 S f
(~)1440 3200 w
(~)1440 3250 w
20 H f
(200 miles)1 890 1 1638 3240 t
17 H f
(3)2542 3160 w
20 HI f
(/)2669 3240 w
20 H f
(year)2741 3240 w
(so daily out\257ow is)3 1572 1 720 3600 t
(200 miles)1 890 1 936 3960 t
17 H f
(3)1840 3880 w
20 HI f
(/)1967 3960 w
20 H f
(year)2039 3960 w
22 HI f
(/)2517 3960 w
20 H f
(400 days)1 848 1 2667 3960 t
20 HI f
(/)3531 3960 w
20 H f
(year)3603 3960 w
20 S f
(~)1440 4280 w
(~)1440 4330 w
20 H f
(1)1638 4320 w
20 HI f
(/)1766 4320 w
20 H f
(2 mile)1 566 1 1838 4320 t
17 H f
(3)2418 4240 w
20 HI f
(/)2545 4320 w
20 H f
(day)2617 4320 w
20 HI f
(A cheating triple check:)3 2076 1 720 5160 t
20 H f
(An almanac reports that the)4 2468 1 2852 5160 t
(river's discharge is 640,000 cubic feet per second,)7 4464 1 720 5400 t
(or 0.4 cubic miles per day.)5 2342 1 720 5640 t
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-7)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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8 pagesetup
20 H f
(Tabular Computation)1 1874 1 2123 960 t
(How much water \257ows in per year?)6 3120 1 720 1560 t
14 H f
(1000 miles)1 751 1 1824 2002 t
2628 2244 2628 1884 Dl
(1000 miles)1 751 1 2688 2002 t
3492 2244 3492 1884 Dl
(1)3669 2002 w
(5000)3552 2182 w
(mile)4012 2002 w
(year)4004 2182 w
4356 2064 1764 2064 Dl
20 H f
(Cancel terms.)1 1236 1 720 2640 t
14 H f
(1000 miles)1 751 1 1392 3082 t
2196 3324 2196 2964 Dl
(1000 miles)1 751 1 2256 3082 t
3060 3324 3060 2964 Dl
(1)3237 3082 w
(5000)3120 3262 w
(mile)3580 3082 w
(year)3572 3262 w
3924 3324 3924 2964 Dl
(200 mile)1 677 1 4023 3082 t
12 H f
(3)4697 3010 w
14 H f
1741 2978 1353 3129 Dl
2173 2978 1785 3129 Dl
2605 2978 2217 3129 Dl
3037 2978 2649 3129 Dl
3469 2978 3081 3129 Dl
3469 3158 3081 3309 Dl
3901 2978 3513 3129 Dl
4788 3144 1332 3144 Dl
20 H f
(Multiply by 1 year = 400 days \(almost\).)7 3438 1 720 3720 t
14 H f
(1000 miles)1 751 1 960 4162 t
1764 4404 1764 4044 Dl
(1000 miles)1 751 1 1824 4162 t
2628 4404 2628 4044 Dl
(1)2805 4162 w
(5000)2688 4342 w
(mile)3148 4162 w
(year)3140 4342 w
3492 4404 3492 4044 Dl
(200 mile)1 677 1 3591 4162 t
12 H f
(3)4265 4090 w
14 H f
1309 4058 921 4209 Dl
1741 4058 1353 4209 Dl
2173 4058 1785 4209 Dl
2605 4058 2217 4209 Dl
3037 4058 2649 4209 Dl
3037 4238 2649 4389 Dl
3469 4058 3081 4209 Dl
3492 4404 3492 4044 Dl
(400)4455 4342 w
4356 4404 4356 4044 Dl
(year)4868 4162 w
(days)4856 4342 w
5220 4224 900 4224 Dl
20 H f
(Cancel again.)1 1228 1 720 4800 t
14 H f
(1000 miles)1 751 1 780 5242 t
1584 5484 1584 5124 Dl
(1000 miles)1 751 1 1644 5242 t
2448 5484 2448 5124 Dl
(1)2625 5242 w
(5000)2508 5422 w
(mile)2968 5242 w
(year)2960 5422 w
3312 5484 3312 5124 Dl
(200 mile)1 677 1 3411 5242 t
12 H f
(3)4085 5170 w
14 H f
1129 5138 741 5289 Dl
1561 5138 1173 5289 Dl
1993 5138 1605 5289 Dl
2425 5138 2037 5289 Dl
2857 5138 2469 5289 Dl
2857 5318 2469 5469 Dl
3289 5138 2901 5289 Dl
3312 5484 3312 5124 Dl
(400)4275 5422 w
4176 5484 4176 5124 Dl
(year)4688 5242 w
(days)4676 5422 w
(1)5217 5242 w
(2)5217 5422 w
5040 5484 5040 5124 Dl
5472 5304 720 5304 Dl
3289 5318 2901 5469 Dl
3721 5138 3333 5289 Dl
4585 5318 4197 5469 Dl
5017 5138 4629 5289 Dl
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-8)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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20 H f
(Reminders About Quick Calculations)3 3266 1 1427 960 t
20 HI f
(How To Do Them.)3 1626 1 720 1560 t
20 H f
(Two answers are better than one.)5 2992 1 1080 1860 t
(Tabular computations.)1 1986 1 1080 2100 t
(Dimension checks.)1 1682 1 1080 2340 t
(Quick checks.)1 1248 1 1080 2580 t
(Common sense.)1 1460 1 1080 2820 t
(Rules of thumb.)2 1406 1 1080 3060 t
(Safety factors)1 1228 1 1080 3300 t
20 HI f
(When To Do Them.)3 1750 1 720 3840 t
20 H f
(After a system has been designed, before start-)7 4232 1 1008 4320 t
(ing implementation.)1 1796 1 1008 4560 t
(Before any ef\256ciency improvements.)3 3234 1 1008 5040 t
(Cost-bene\256ts analysis.)1 2018 1 1008 5520 t
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-9)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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20 H f
(Exercises)2770 960 w
(When is a cyclist with removable media faster than a)9 4672 1 720 1560 t
(high-speed data line?)2 1922 1 720 1800 t
(A newspaper asserts that a quarter has ``an average)8 4656 1 720 2280 t
( that reasonable?)2 1554( Is)1 268(life of 30 years''.)3 1450 3 720 2520 t
(An advertisement asserts that a salesperson drives)6 4552 1 720 3000 t
( that reasonable?)2 1554( Is)1 268(a car 100,000 miles in a year.)6 2634 3 720 3240 t
( How)1 512(How many tons of people are in this room?)8 3816 2 720 3720 t
( room?)1 624( Of)1 324(many cubic feet of people?)4 2402 3 720 3960 t
(If every person in this city threw a ping pong ball into)11 4666 1 720 4440 t
(this room, how deep would we be?)6 3092 1 720 4680 t
(How long to read a CD-ROM?)5 2674 1 720 5160 t
(How much money will Americans spend on soft)7 4202 1 720 5640 t
(drinks this year?)2 1460 1 720 5880 t
( many words a)3 1304( How)1 512(How many words in a book?)5 2520 3 720 6360 t
( many hours per week do)5 2254( How)1 512(minute do you read?)3 1832 3 720 6600 t
(you watch television?)2 1908 1 720 6840 t
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-10)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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11 pagesetup
20 H f
(Rules of Thumb)2 1416 1 2352 960 t
20 S f
(p)720 1560 w
20 H f
(seconds is a nanocentury.)3 2334 1 886 1560 t
(Rule of 72)2 916 1 720 2040 t
(Little's Law)1 992 1 720 2520 t
( of X accounts for 90% of)6 2246( 10%)1 514(90-10 \(80-20\) Rules.)2 1840 3 720 3000 t
(Y: \(population, beer\) \(code, run time\) \(code, func-)7 4396 1 720 3240 t
(tion\))720 3480 w
(The cheapest, fastest and most reliable components)6 4656 1 720 3960 t
(of a computer system are those that aren't there.)8 4332 1 720 4200 t
(Whenever possible, steal code.)3 2790 1 720 4680 t
([The Test of Negation] Don't include a sentence in)8 4456 1 720 5160 t
(documentation if its negation is obviously false.)6 4186 1 720 5400 t
([The Principle of Least Astonishment] Make a user)7 4486 1 720 5880 t
(interface as consistent and as predictable as possi-)7 4554 1 720 6120 t
(ble.)720 6360 w
([KISS] Keep it simple, stupid.)4 2590 1 720 6840 t
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-11)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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12 pagesetup
20 H f
(Approaches to Debugging)2 2324 1 1898 960 t
(Program Veri\256cation)1 1816 1 720 1560 t
(Don't make any mistakes.)3 2296 1 1008 2040 t
(Theory of Test Data Selection)4 2656 1 720 2520 t
(Uncover all mistakes.)2 1904 1 1008 3000 t
(Advanced Debuggers)1 1932 1 720 3480 t
(Use 'em if you have 'em.)5 2196 1 1008 3960 t
(The Right Attitude)2 1608 1 720 4440 t
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-12)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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13 pagesetup
20 H f
(Debugging Steubenville, Ohio)2 2658 1 1731 960 t
( 's)1 167( \302)1 -23(From Roueche)1 1326 3 720 1560 t
20 HI f
(Medical Detectives)1 1682 1 2246 1560 t
20 H f
(\(Penguin,)3984 1560 w
(1991\))720 1800 w
(Background)720 2280 w
(36 cases of salmonella from December, 1980)6 4038 1 1008 2760 t
(through February, 1982)2 2100 1 1008 3000 t
(A Good Debugger)2 1620 1 720 3480 t
(``I was prepared for hard work, for plenty of old-)9 4194 1 1008 3960 t
(fashioned shoe-leather epidemiology.'')2 3426 1 1008 4200 t
(A Key Hint)2 948 1 720 4680 t
(``In such outbreaks, there is always a common)7 4104 1 1008 5160 t
(denominator \320 an eating place, a wedding)6 3820 1 1008 5400 t
(reception, a picnic, a dinner party, a church)7 3840 1 1008 5640 t
( in which everybody is)4 1962(social. Something)1 1640 2 1008 5880 t
(involved.'')1008 6120 w
(Dominant age group: 20-29)3 2446 1 1008 6600 t
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-13)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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20 H f
(Debugging Computer Systems)2 2732 1 1838 960 t
(Some Puzzles)1 1282 1 720 1560 t
(A banking system ``quits'' on international data.)6 4174 1 1008 2040 t
(The programmer can't log in standing up.)6 3660 1 1008 2520 t
(The program worked once twice.)4 2910 1 1008 3000 t
(The program works when the programmers are)6 4190 1 1008 3480 t
(in the room, but fails half the time when they)9 3930 1 1008 3720 t
(aren't.)1008 3960 w
(A Moral)1 690 1 720 4440 t
(Debugging is usually unbelieving.)3 2980 1 1008 4920 t
(The key is skepticism: the magician.)5 3210 1 1008 5400 t
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-14)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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15 pagesetup
20 H f
(Tricks of the Trade)3 1672 1 2368 960 t
(Ten Design Hints)2 1538 1 720 1560 t
(Work on the right problem.)4 2364 1 1080 1860 t
(Explore the design space of solutions.)5 3384 1 1080 2100 t
(Look at the data.)3 1500 1 1080 2340 t
(Use the back of the envelope.)5 2660 1 1080 2580 t
(Exploit symmetry.)1 1580 1 1080 2820 t
(Design with components.)2 2242 1 1080 3060 t
(Build prototypes.)1 1496 1 1080 3300 t
(Make tradeoffs when you have to.)5 3016 1 1080 3540 t
(Keep it simple.)2 1316 1 1080 3780 t
(Strive for elegance.)2 1730 1 1080 4020 t
(Nurturing Trickiness)1 1780 1 720 4560 t
(Observe)1080 4860 w
(Read)1080 5100 w
(Discuss)1080 5340 w
(Practice)1080 5580 w
(Re\257ect)1080 5820 w
6 H f
(From)720 7800 w
6 I f
(Programming Pearls)1 507 1 878 7800 t
6 R f
(, Copyright)1 274 1 1385 7800 t
6 S f
(\323)1674 7800 w
6 R f
( Pearls-2000-15)1 3011(2000, Lucent Technologies)2 653 2 1736 7800 t
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