【简答题】编程:用for语句,求1~n的累加和,其中n为大于或者等于0的整数,输入n的值,计算1~n的累加和并输出。
【简答题】下面的函数是完成1~n的累加,请填空。a(int k){ if(k <=0) printf('error\n') if(k==1) return 1 else}
【简答题】下面的函数是完成1~n的累加,完成函数。 a(int k) {if(k<=0)printf('error\n') if(k==1) 【18】 else 【19】 }
【简答题】已知a 1 =b 1 =1,a n+1 =b n +n,b n+1 =a n +(-1) n ,n∈N*, (Ⅰ)求a 3 ,a 5 的值; (Ⅱ)求通项公式a n ; (Ⅲ)求: ; (Ⅳ)求证: 。
【单选题】The film of oil between the rings and the liner is not only essential for the lubrication but also plays an important part in achieving _____.
【简答题】On Constellation Craze 关于星座热 A.Title: On Constellation Craze B.Word limit: 160-200 words (not including the given opening sentence) C.Your composition should be based on the OUTLINE below and should s...