题目:给出波的振幅和平率,用数字绘制出波形图。
分析:简单题。输入输出练习。
#include <iostream>
#include <cstdlib>
#include <cstdio>
using namespace std;
int main()
{
int n,a,f;
while ( scanf("%d",&n) != EOF )
for ( int i = 1 ; i <= n ; ++ i ) {
scanf("%d%d",&a,&f);
for ( int j = 1 ; j <= f ; ++ j ) {
for ( int k = 1 ; k <= a ; ++ k ) {
for ( int l = 1 ; l <= k ; ++ l )
printf("%d",k);
printf("\n");
}
for ( int k = a-1 ; k >= 1 ; -- k ) {
for ( int l = 1 ; l <= k ; ++ l )
printf("%d",k);
printf("\n");
}
if ( j < f ) printf("\n");
}
if ( i < n ) printf("\n");
}
return 0;
}