usaco 4.3.4 letter game

久违的 first time ac!

USER: sendong li [lisendo1]
   
   
   
   


   
   
   
   
LANG: C++

Compiling...
Compile: OK

Executing...
   Test 1: TEST OK [0.043 secs, 4132 KB]
   Test 2: TEST OK [0.043 secs, 4132 KB]
   Test 3: TEST OK [0.054 secs, 4132 KB]
   Test 4: TEST OK [0.054 secs, 4132 KB]
   Test 5: TEST OK [0.054 secs, 4132 KB]
   Test 6: TEST OK [0.043 secs, 4132 KB]
   Test 7: TEST OK [0.043 secs, 4132 KB]
   Test 8: TEST OK [0.043 secs, 4132 KB]
   Test 9: TEST OK [0.043 secs, 4132 KB]
   Test 10: TEST OK [0.043 secs, 4132 KB]
   Test 11: TEST OK [0.054 secs, 4132 KB]
   Test 12: TEST OK [0.054 secs, 4132 KB]

All tests OK.
YOUR PROGRAM ('lgame') WORKED FIRST TIME!  That's fantastic
-- and a rare thing.  Please accept these special automated
congratulations.

Here are the test data inputs:

------- test 1 ----
jicuzza
------- test 2 ----
cuqak
------- test 3 ----
pofax
------- test 4 ----
rammoxy
------- test 5 ----
culatu
------- test 6 ----
gvutvac
------- test 7 ----
bhruthr
------- test 8 ----
wagje
------- test 9 ----
thryst
------- test 10 ----
fnupfig
------- test 11 ----
bobdead
------- test 12 ----
abcdefg

Keep up the good work!

Thanks for your submission!

Letter GameIOI 1995

  Figure 1: Each of the 26 lowercase letters and its value

Letter games are popular at home and on television. In one version of the game, every letter has a value, and you collect letters to form one or more words giving the highest possible score. Unless you have `a way with words', you will try all the words you know, sometimes looking up the spelling, and then compute the scores. Obviously, this can be done more accurately by computer.

Given the values in Figure 1, a list of words, and the letters collected: find the highest scoring words or pairs of words that can be formed.

PROGRAM NAME: lgame

INPUT FORMAT

One line with a string of lowercase letters (from ` a' to ` z'). The string consists of at least 3 and at most 7 letters in arbitrary order.

SAMPLE INPUT (file lgame.in)

prmgroa

DICTIONARY FORMAT

At most 40,000 lines, each containing a string of at least 3 and at most 7 lowercase letters. At the end of this file is a line with a single period (` .'). The file is sorted alphabetically and contains no duplicates.

SAMPLE DICTIONARY (file lgame.dict)

profile
program
prom
rag
ram
rom
.

OUTPUT FORMAT

On the first line, your program should write the highest possible score, and on each of the following lines, all the words and/or word pairs from filelgame.dict with this score. Sort the output alphabetically by first word, and if tied, by second word. A letter must not occur more often in an output line than in the input line. Use the letter values given in Figure 1.

When a combination of two words can be formed with the given letters, the words should be printed on the same line separated by a space. The two words should be in alphabetical order; for example, do not write `rag prom', only write `prom rag'. A pair in an output line may consist of two identical words.

SAMPLE OUTPUT (file lgame.out)

This output uses the tiny dictionary above, not the lgame.dict dictionary.

24
program
prom rag

分析： 该题目的字典文件有40000行，乍一看以为 n^2的穷举算法会超时。但仔细一想，input中只有最多7位数字，因此排列组合最多情况也就只有 7! 种情况 枚举是完全可以通过的！

代码如下：