摘要: # D. Almost Difference * long double 确实顶 ```c++ #include #define ll long long using namespace std; map num; long double sum[200005],ans=0;; int main() { int n; cin>>n; for(int i=0;i>nn; ... 阅读全文
posted @ 2020-05-24 15:08 尾巴一米八 阅读(158) 评论(0) 推荐(0) 编辑