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Rails There is a famous railway station in PopPush City. Country there is incredibly hilly. The station was built in last century. Unfortunately, fund 阅读全文
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C - 简单计算器 C - 简单计算器 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。 Ou 阅读全文
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A - A + B Problem II I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B. InputThe first line 阅读全文