<p>输入两个矩阵。输出矩阵乘法运算的结果,如果不能进行矩阵乘法运算,则输出一行“Error”。<br /> 如果第1个矩阵的行数和列数为 n1, m1(1<=n1<=100,1<=m1<=100),第2个矩阵的行数和列数为 n2, m2(1<=n2<=100,1<=m2<=100)。<br /> 矩阵乘法运算规则为:<br…
<p>输入两个矩阵。输出矩阵乘法运算的结果,如果不能进行矩阵乘法运算,则输出一行“Error”。<br /> 如果第1个矩阵的行数和列数为 n1, m1(1<=n1<=100,1<=m1<=100),第2个矩阵的行数和列数为 n2, m2(1<=n2<=100,1<=m2<=100)。<br /> 矩阵乘法运算规则为:<br…
<p>A ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separately, and the sum of numbers in two adjacent circles should be a prime.<br /> <br /> Note: the number of first circle should always …
<p>输入n和m,输出1-n之间能够被m整除的数的和,例如:输入35 7,输出的是1-35之间所以能够被7整除的数的和,即7+14+21+28+35=105</p> <p></p>