REM 编译
gcc test.c -otest.exe
REM 运行
test.exe<expand.in>expand.out
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#include <stdio.h>
#include <stdlib.h>

//定义字符串容器长度
#define BUFF_SIZE 1024

//定义宏函数
#define ISDIGITAL(x) ('0'<=(x) && (x)<='9')
#define ISLETTER(x) ('a'<=(x) && (x)<='z')

//输出函数
char* OutString(int p1, int p2, int p3, const char* iString)
{
	int i, j;
	char *oString=(char*)calloc(BUFF_SIZE, sizeof(char)), *o=oString, *p=(char*)iString;
	while(*p){
		if(
			(*p=='-') &&
			(
				(ISDIGITAL(*(p-1)) && ISDIGITAL(*(p+1))) || 
				(ISLETTER (*(p-1)) && ISLETTER (*(p+1)))
			)         &&
			(*(p-1) <  *(p+1))
		){
			
			for(i=(*(p-1))+1; i<(*(p+1)); i++){
				for(j=0; j<p2; j++){
					(p3==1)?(*(o++) = (p1==1)? i :((p1==2)?((ISDIGITAL(*(p-1)))?i:i-32):'*')):((*(o++) = (p1==1)? ((ISDIGITAL(*(p-1)))?(*(p+1))-(i-(*(p-1))):(*(p+1))-(i-(*(p-1)))) :((p1==2)?((ISDIGITAL(*(p-1)))?(*(p+1))-(i-(*(p-1))):(*(p+1))-(i-(*(p-1)))-32):'*')));
				}
			}
			p++;
			continue;
		}
		*(o++) = *(p++);
	}
	*o='\0';
	return oString;
}

//主函数
int main()
{
	//设置接受变量
	int p1, p2, p3;
	char* pString = (char*)calloc(BUFF_SIZE, sizeof(char));

	//从输入流获取参数
	scanf("%d%d%d", &p1, &p2, &p3);
	scanf("%s", pString);

	//调用输出函数
	char* oString = NULL;
	if(oString=OutString(p1, p2, p3, pString)){
		//显示结果
		fprintf(stdout, "%s\n", oString);
		free(oString);
	}

	//释放内存
	free(pString);
}
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def type(c)
  return :num if c =~ /[0-9]/
  return :lit if c =~ /[a-z]/
end

def is_expand_pattern(h, t)
  return false if !type(h) || type(h) != type(t)
  true
end

def expand(h, t, opt)
  len = t.ord - h.ord
  return '-' if  len < 1 # b-a, l-a, z-z, 9-3, 7-6, 5-5
  return '' if len == 1 # i-j, 8-9

  if opt[0] == 3
    return '*' * (len - 1) * opt[1] #times
  end

  ex = []
  (h..t).each { |c|
    next if c == h || c == t
    ex.push c * opt[1] #times
  }
  ex.reverse! if opt[2] == 2 #reverse
  ex = ex.join('')
  return ex.upcase if opt[0] == 2  #upcase
  return ex
end

def main(opt, str, expected)
  i = 0;out = '';used = -1;
  str.each_char { |c|
   if c == '-' && used < i - 1 && is_expand_pattern(str[i-1], str[i+1])
        out << expand(str[i-1], str[i+1], opt)
        used = i + 1
    else
      out << c
    end
    i+=1
  }
  puts "#{expected}\n#{out}"
end

main([1,2,1], "abcs-w1234-9s-4zz", "abcsttuuvvw1234556677889s-4zz")
main([2,3,2], "a-d-d", "aCCCBBBd-d")
main([3,4,2], "di-jkstra2-6", "dijkstra2************6")
main([1,2,1], "d-cc-dl-ld-aa-d9-89-74-56-64-9:i-j-k:i-k-z:j-i-k-1-4-8:j-i-k-n7-3-2",
              "d-ccdl-ld-aabbccd9-89-7456-64556677889:ij-k:ijjk-n:j-i-k-122334-8:j-i-kllmmn7-3-2")
main([2,2,1], "d-cc-dl-ld-aa-d9-89-74-56-64-9:i-j-k:i-k-n:j-i-k-1-4-8:j-i-k-n7-3-2",
              "")
main([2,2,2], "d-cc-dl-ld-aa-d9-89-74-56-64-9:i-j-k:i-k-n:j-i-k-1-4-8:j-i-k-n7-3-2",
              "")
main([3,2,1], "d-cc-dl-ld-aa-d9-89-74-56-64-9:i-j-k:i-k-n:j-i-k-1-4-8:j-i-k-n7-3-2",
              "")
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