488 - Triangle Wave

Triangle Wave 

In this problem you are to generate a triangular wave form according to a specified pair of Amplitude and Frequency.

 

Input and Output

The input begins with a single positive integer on a line by itself indicating the number of the cases following, each of them as described below. This line is followed by a blank line, and there is also a blank line between two consecutive inputs.

Each input set will contain two integers, each on a separate line. The first integer is the Amplitude; the second integer is the Frequency.

For each test case, the output must follow the description below. The outputs of two consecutive cases will be separated by a blank line.

For the output of your program, you will be printing wave forms each separated by a blank line. The total number of wave forms equals the Frequency, and the horizontal ``height'' of each wave equals the Amplitude. The Amplitude will never be greater than nine.

The waveform itself should be filled with integers on each line which indicate the ``height'' of that line.

NOTE: There is a blank line after each separate waveform, excluding the last one.

Sample Input

 

1

3
2

Sample Output

 

1
22
333
22
1

1
22
333
22
1

#include"stdio.h"
#include"stdlib.h"
int main()
{ int n,a,b,i,k,j;
  scanf("%d ",&n);
  while(n--)
  {scanf("%d",&a);
   scanf("%d",&b);
   while(b--)
    { for(i=1;i<=a;i++)//前半段输出； 
       {for(k=0;k<i;k++)
         printf("%d",i);
         printf("\n");}
       for(i=a-1;i>0;i--)//后半段输出;
        {for(k=0;k<i;k++)
          printf("%d",i);
          printf("\n");}
      if(b!=0)//控制最后一组不隔行; 
      printf("\n");          
    }
     if(n!=0)//控制最后一组不隔行;
     printf("\n");       
   }   
system("pause");
return 0;     
}