3108 - 计算2+4+6+8+……+96+98+100的累加和

Solution C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int s=0,t=0;
	for(int i=2;i<=100;i+=2)
		s+=i;
	cout<<s;	
    return 0;
}