C++ 代码
#include<iostream>
using namespace std;
int main(){
int n;
cin>>n;
for(int j =1;j<=n;j++){
int x,y;
cin>>x>>y;
int sum=0;
if(x>=y) swap(x,y);
for(int i=x+1 ;i<y;i++){
if(i%2!=0) sum+=i; //判断奇数偶数(i%2==0 i%2!=0)
}
cout<<sum<<endl;
}
return 0;
}