题解列表

筛选

Kanna-等差数列

摘要:计算前n项数和 简单计算下通项 #include int main() { int n,d = 3,a1 = 2; scanf("%……

[编程入门]阶乘求和-题解(C++代码)

记得存储阶乘时和阶乘求和时要用long类型!!!```cpp#includeusingnamespacestd;longfact(intn_int){longjc_int=1;for(inti_for1_int=1;i_for1_int>n_int;longsum_int=0;for(inti_for