488：
| Time Limit: 3000MS | Memory Limit: Unknown | 64bit IO Format: %lld & %llu |
Description
| 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
解题思路：
这道题完全是看算法笔记的时候，照着他的例题刷的，没有什么技巧，就是在打印空行上面，WA了好几次。。。
代码：
# include<cstdio>
int main(void)
{
int N;
scanf("%d", &N);
for(int i=0; i<N; i++)
{
int A, F;
scanf("%d%d", &A, &F);
for(int k1=0; k1<F; k1++)
{
for(int k2=1; k2<=A; k2++)
{
for(int k3=1; k3<=k2; k3++)
printf("%d", k2);
printf("\n");
}
for(int k4=A-1; k4>=1; k4--)
{
for(int k5=1;k5<=k4;k5++)
printf("%d", k4);
printf("\n");
}
if(k1!=F-1)
printf("\n");
}
if(i != N-1)
printf("\n");
}
return 0;
}
10038：
解题思路：
代码：