OJ-Problems-Source/QUSTOJ/1739.c

#include <stdio.h>
#define n "\n"
int main()
{
  printf(
"123"n
"124"n
"132"n
"134"n
"142"n
"143"n
"213"n
"214"n
"231"n
"234"n
"241"n
"243"n
"312"n
"314"n
"321"n
"324"n
"341"n
"342"n
"412"n
"413"n
"421"n
"423"n
"431"n
"432"n
"这样的数共有24个"n
);
return 0;
}