In the present world you frequently meet a lot of call numbers and they are going to be longer and longer. You need to remember such a kind of numbers. One method to do it in an easy way is to assign letters to digits as shown in the following picture:
1 ij 2 abc 3 def
4 gh 5 kl 6 mn
7 prs 8 tuv 9 wxy
0 oqz
|
This way every word or a group of words can be assigned a unique number, so you can remember words instead of call numbers. It is evident that it has its own charm if it is possible to find some simple
relationship between the word and the person itself. So you can learn that the call number 941837296 of a chess-playing friend of yours can be read as WHITEPAWN, and the call number 2855304 of your favourite teacher is read BULLDOG.
Write a program to find the shortest sequence of words (i.e. one having the smallest possible number of words) which corresponds to a given number and a given list of words. The correspondence is described
by the picture above.
Input
Input contains a series of tests. The first line of each test contains the call number, the transcription of which you have to find. The number consists of at most 100 digits. The second line contains
the total number of the words in the dictionary (maximum is 50 000). Each of the remaining lines contains one word, which consists of maximally 50 small letters of the English alphabet. The total size of the input doesn't exceed 300 KB. The last line contains
call number −1.
Output
Each line of output contains the shortest sequence of words which has been found by your program. The words are separated by single spaces. If there is no solution to the input data, the line contains
text “
No solution.”. If there are more solutions having the minimum number of words, you can choose any single one of them.Sample
| input | output |
|---|---|
7325189087 5 it your reality real our 4294967296 5 it your reality real our -1 |
reality our No solution. |
#include <iostream>
#include <string.h>
#include <vector>
using namespace std;
vector<string> outstr;
int Checkstr(){
string phonenum ;
cin>>phonenum;
if(phonenum.size() == 2 and phonenum[0] == '-' and phonenum[1] == '1'){
return -1;
}
int count;
cin>>count;
vector <string> instr;
vector <int> numstr;
int sequence = 0;
for(int i = 0 ; i < count ; i++){
string tstr;
cin>>tstr;
instr.insert(instr.end(), tstr);
}
for(int i = 0 ; i < instr.size() ; i++){
int tse = 0;
for(int j = 0 ; j < instr[i].size() ; j++){
int instrsq = -1;
switch (instr[i][j]) {
case 'i':;
case 'j':
instrsq = 1;
break;
case 'a':;
case 'b':;
case 'c':
instrsq = 2;
break;
case 'd':;
case 'e':;
case 'f':
instrsq = 3;
break;
case 'g':;
case 'h':
instrsq = 4;
break;
case 'k':;
case 'l':
instrsq = 5;
break;
case 'm':;
case 'n':
instrsq = 6;
break;
case 'p':;
case 'r':;
case 's':
instrsq = 7;
break;
case 't':;
case 'u':;
case 'v':
instrsq = 8;
break;
case 'w':;
case 'x':;
case 'y':
instrsq = 9;
break;
case 'o':;
case 'q':;
case 'z':
instrsq = 0;
break;
default:
break;
}
if(instrsq >=0 and (phonenum[sequence+j]-'0') == instrsq and tse != 1){
tse = 0;
cout<<"instr1 is "<<instr[i][j]<<endl;
}else{
cout<<"instr2 is "<<instr[i][j]<<endl;
tse = 1;
break;
}
}
if(tse == 0){
sequence = (int)instr[i].size() + sequence;
outstr.insert(outstr.end(), instr[i]);
}
}
return 0;
}
int main(int argc, const char * argv[]) {
vector<string> ostr;
while (1) {
if(Checkstr() == -1){
for(int i = 0 ; i < ostr.size() ; i++){
cout<<ostr[i]<<endl;
}
break;
}
else{
string stemp;
if(outstr.size()<1){
ostr.insert(ostr.end(), "No solution.");
}
else{
for(int i = 0 ; i < outstr.size() ; i++){
stemp = stemp + outstr[i] + ' ';
}
ostr.insert(ostr.end(), stemp);
outstr.clear();
}
}
}
return 0;
}
本文介绍了一种将电话号码转换为单词序列的方法,旨在通过将数字映射到字母来简化电话号码的记忆过程。文章提供了一个程序示例,用于寻找对应给定电话号码的最短单词序列。
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