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

C++语言: Codee#23814

01 void print_triangle(int n)
02 {
03     for(int i = 1; i <= n; ++i)
04     {
05         for(int j = 0; j < i; ++j)
06             fprintf(fout, "%d", i);
07         fprintf(fout, "\n");
08     }
09     for(int i = n - 1; i > 0; --i)
10     {
11         for(int j = 0; j < i; ++j)
12             fprintf(fout, "%d", i);
13         fprintf(fout, "\n");
14     }
15 }
16 int main()
17 {
18     int n;
19     int height, frq;
20     while(scanf("%d", &n) != EOF)
21     {
22         while(n--)
23         {
24             scanf("%d%d", &height, &frq);
25             while(frq--)
26             {
27                 print_triangle(height);
28                 if(frq)
29                     fprintf(fout, "\n");
30             }
31             if(n)
32                 fprintf(fout, "\n");
33         }
34
35     }
36
37     return 0;
38 }