Question

编程计算1+4+9+16+25+.......+10000之和 用C++

Answer 1

#include<iostream>
using namepaace std;
void main()
{
int x = 0;
for(int i = 1; i<= 10000; i++)
x = x+i;
cout<<x<<endl;
}

Answer 2

#include<iostream>
using namespace std;
int main(){
long sum=0;
for(int i=1;i<=100;i++)
sum+=i*i;
cout<<sum<<endl;
return 0;
}