llew的博客

Problem Description读入一个只包含 +, -, *, / 的非负整数计算表达式，计算该表达式的值。 Input测试输入包含若干测试用例，每个测试用例占一行，每行不超过200个字符，整数和运算符之间用一个空格分隔。没有非法表达式。当一行中只有0时输入结束，相应的结果不要输出。 Output对每个测试用例输出1行，即该表达式的值，精确到小数点后2位。 Sample Input1 + ...

Problem DescriptionMatrix multiplication problem is a typical example of dynamical programming. Suppose you have to evaluate an expression like A*B*C*D*E where A,B,C,D and E are matrices. Since matrix...