either the hidden number belongs to your query sequence, in this case you immediately win; or you will be given where the hidden number is located with respect to your query sequence, that is, either it is less
The first line of the input contains a single integern(1 ≤ n ≤ 10000) — the number of questions (and answers). Nextnlines each contain one question and one answer to it. The format of each line is like that: "sign x answer", where thesignis: ...
Codeforces Round #241 (Div. 2) A. Guess a number! 题目链接 题意: 就是猜数游戏,根据给定的操作,让你输出一个符合条件的。 思路: 这个题好玩儿,设置两个变量,一个找符合条件的数的上限,一个找下限,再判断一下。 View Code
Is it true thatyis strictly larger than numberx? Is it true thatyis strictly smaller than numberx? Is it true thatyis larger than or equal to numberx? Is it true thatyis smaller than or equal to numberx? On each question the host answers truthfully, "yes" or "no". Given the sequen...
Codeforces Round #610 (Div. 2) B2 - K for the Price of One(DP) 2019-12-25 09:01 − [🎄 🎄 🎄](https://codeforces.com/contest/1282/problem/B2) 题意:每次可以买一个,或者买k个只花最高的那份的价钱,问你用 p 块钱最多买几件。 1,为了尽可能多买肯定从价钱小的开始买 2,题...
or u is an ancestor of the parent of node v.In the first sample test there are 4 leaf nodes 4, 5, 6, 7. The first question says that the node isn't in the range [4, 6] so the exit is node number 7.In the second sample test there are 8 leaf nodes. After the fi...
codeforces 950 D. A Leapfrog in the Array (思维) https://codeforces.com/contest/950/problem/D 题意:有n个数,每个数i在2*i-1的位置上,其余位置为空,每次把最右边的数放在它左边最近的空位上,重复此过程,直到1~n填满 思路:发现n很大,而且有q次询问,那么时间复杂度应该为logn,我先打了表,想找...
Alice and Bob hear what each other says, and can use this information to deduce the answer. Both Alice and Bob are smart enough and only say "I know" when they are completely sure. You need to calculate the expected value of the number of turns taken by players in the game. Output ...
Formally the k-th smallest number is equal to the number at the k-th place in a 1-indexed array sorted in non-decreasing order. For example in array [5,3,3,10,1] 4th smallest number is equal to 5, and 2nd and 3rd are 3. Input It is guaranteed that for each element in a sequ...
Help him choose his point so that the total time of guessing all cars is the smallest possible. Input The first line contains two integers n and m (1 ≤ n, m ≤ 1000)— the sizes of the parking lot. Each of the next n lines contains m integers: the j-th number in ...