有以下两个求1+2+......+n的算法: long Sum(long n) {long s=0; for (long i=1;i<=n;i++) s+=i; return s; } long Sum2(long n) { long s=n*(n+1)/2; return s; } 现在需要计算1+(1+2)+(1+2+3)+...+(1+2+3+...+n)。编写一个程序分别调用上述两个算法求解,给出n=100000时两个算法的执行时间
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【简答题】The strategic supply chain processes that management has to decide upon will cover the breadth of the supply chain. These include preduct development, customers, manufacturing, vendors and logistics. ...