642 - Word Amalgamation
Time limit: 3.000 seconds
http://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=583
In millions of newspapers across the United States there is a word game called Jumble. The object of this game is to solve a riddle, but in order to find the letters that appear in the answer it is necessary
to unscramble four words. Your task is to write a program that can unscramble words.
Input
The input file contains four parts:
- 1.
- a dictionary, which consists of at least one and at most 100 words, one per line;
- 2.
- a line containing XXXXXX, which signals the end of the dictionary;
- 3.
- one or more scrambled `words' that you must unscramble, each on a line by itself; and
- 4.
- another line containing XXXXXX, which signals the end of the file.
All words, including both dictionary words and scrambled words, consist only of lowercase English letters and will be at least one and at most six characters long. (Note that the sentinel XXXXXX contains uppercaseX's.)
The dictionary is not necessarily in sorted order, but each word in the dictionary is unique.
Output
For each scrambled word in the input, output an alphabetical list of all dictionary words that can be formed by rearranging the letters in the scrambled word. Each word in this list must appear on a line by itself.
If the list is empty (because no dictionary words can be formed), output the line ``NOT A VALID WORD" instead. In either case, output a line containing six asterisks to signal the end of the list.
Sample Input
tarp given score refund only trap work earn course pepper part XXXXXX resco nfudre aptr sett oresuc XXXXXX
Sample Output
score ****** refund ****** part tarp trap ****** NOT A VALID WORD ****** course ******
统统排序。
完整代码：
/*0.015s*/
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
char word[110][10], sorted[110][10], s[10];
char *pstr[110];
bool cmp_string(const char *a, const char *b)
{
return strcmp(a, b) < 0;
}
int main(void)
{
int n = 0;
while (gets(word[n]), word[n][0] != 'X')
{
pstr[n] = word[n];
++n;
}
///交换两个字符串数组？干脆交换指针吧。
sort(pstr, pstr + n, cmp_string);
///注意在排序之后，word的顺序并未改变，但sorted是字典序
for (int i = 0; i < n; i++)
{
strcpy(sorted[i], pstr[i]);
sort(sorted[i], sorted[i] + strlen(sorted[i]));
}
while (gets(s), s[0] != 'X')
{
sort(s, s + strlen(s));
bool found = false;
for (int i = 0; i < n; i++)
if (strcmp(sorted[i], s) == 0)
{
found = true;
puts(pstr[i]);
}
if (!found)
puts("NOT A VALID WORD");
puts("******");
}
return 0;
}