摘要：
#实验2-4-4-for 求阶乘序列前N项和 ###最终正确答案 #include<stdio.h> int main() { int n=0, total=1, sum = 0 ; scanf("%d", &n); for (int i = 1;i <= n;i++) { total = 1; f 阅读全文
摘要：
在做题时遇到 include <stdio.h> int main()6 { int i = 0, n = 0; double sum = 0; scanf_s("%d", &n); for (i = 1;i <= n;i++) { sum = sum + 1.0 / 2 * n - 1; prin 阅读全文