2013秋13级预备队集训练习1 I - 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>
int main()
{
    int i , n , j , k , t , a, b;
    scanf("%d", &n);
    for(i = 1 ; i <= n ; i++)
    {
        scanf("%d%d", &a, &b);
        for(j = 1 ; j <= b ; j++)
        {
            for(k = 1; k <= a ; k++)
            {
                for(t = 1 ; t <= k ; t++)
                    printf("%d", k);
                printf("\n");
            }
            for(k = a-1 ; k >= 1 ; k--)
            {
                for(t = 1 ; t <= k ; t++)
                    printf("%d", k);
                printf("\n");
            }
            if(i==n && j==b);
            else
                printf("\n");
        }
    }
}