偷吃了老鼠的土豆

暑假学校培训再一次做这个题；一开始还是以为c可以借解出来，但是困于 ∑di/（si+c)＝t这个式子不知道如何解，就参考了一下博客，知道这道题用二分查找。#include <iostream>#include <stdio.h>using namespace std;int main(){ int n,t; double a[1005],b[1005...

题目：http://poj.org/problem?id=3258Every year the cows hold an event featuring a peculiar version of hopscotch that involves carefully jumping from rock to rock in a river. The excitement takes place ...

题目：http://poj.org/problem?id=3579Given N numbers, X1, X2, ... , XN, let us calculate the difference of every pair of numbers: ∣Xi - Xj∣ (1 ≤ i ＜ j ≤ N). We can get C(N,2) differences through this wo...

题目：http://poj.org/problem?id=3122 My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes. F of my frien...

题目：In the battlefield , an effective way to defeat enemies is to break their communication system. The information department told you that there are n enemy soldiers and their network which have n...

题目：Vases and Flowers　　Alice is so popular that she can receive many flowers everyday. She has N vases numbered from 0 to N-1. When she receive some flowers, she will try to put them in the vases, on...