unsigned int integer_sum( unsigned int base ){unsigned int index;static unsigned int sum = 0;// 注意,是static类型的。// 若改为auto类型,则函数即变为可预测。for (index = 1; index <= base; index++){sum += index;}return sum;} 12、检查函数所有非参数输入的有效性,如数据文件、公共变量等...
错误示例:如下函数,其返回值(即功能)是不可预测的。 unsigned int integer_sum( unsigned int base ) { unsigned int index; static unsigned int sum = 0;// 注意,是static类型的。 // 若改为auto类型,则函数即变为可预测。 for (index = 1; index <= base; index++) { sum += index; } return...
C 语言的每一种数据,都是有类型(type)的,编译器必须知道数据的类型,才能操作数据。 所谓“类型”,就是相似的数据所拥有的共同特征,那么一旦知道某个值的数据类型,就能知道该值的特征和操作方式。 基本数据类型有三种:字符(char)、整数(int)和浮点数(float)。复杂的类型都是基于它们构建的。 1 字符类型 字符类...
Find the minimum integer you can obtain.Note that the resulting integer also may contain leading zeros.Input The first line contains one integer t (1≤t≤104) — the number of test cases in the input.The only line of each test case contains the integer a, its length n is between 1 ...
Limits on Integer Constants ConstantMeaningValue CHAR_BITNumber of bits in the smallest variable that is not a bit field.8 SCHAR_MINMinimum value for a variable of typesigned char.-128 SCHAR_MAXMaximum value for a variable of typesigned char.127 ...
Assume that a,b,c,d are integers,and four equations (a-2b)x=1,(b-3c)y=1,(c-4d)z=1,w+100=d have always solutions x,y,z,w of positive numbers respectively,then the minimum of a is ___.(英汉词典:to assume假设;integer整数;equation方程;solutions (方程的)解;positive正的;respective...
Depending on which version of C or C++ you are using, the expression-(int_max + 1)would either become a signed 64-bit integer, keeping the signedness but sacrificing the original bit width, or it would become an unsigned 32-bit integer, keeping the original bit width ...
Limits on Integer Constants展开表 Constant Meaning Value CHAR_BIT Number of bits in the smallest variable that is not a bit field. 8 SCHAR_MIN Minimum value for a variable of type signed char. –128 SCHAR_MAX Maximum value for a variable of type signed char. 127 UCHAR_MAX Maximum value...
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