C. Pride time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You have an array a with length n, you can perform operations. Each operation is like this: choose two adjacentelements from a, say…

B. Wrath time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Hands that shed innocent blood! There are n guilty people in a line, the i-th of them holds a claw with length Li. The bell rings a…

A. Greed time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Jafar has n cans of cola. Each can is described by two integers: remaining volume of cola ai and can's capacity bi (ai  ≤  bi). Jaf…

Codeforces Round #446 (Div. 2) 总体:rating涨了好多,虽然有部分是靠和一些大佬(例如redbag和ShichengXiao)交流的--希望下次能自己做出来2333 A. Greed 题意:给你\(n\)个罐子,每个罐子都告诉了你它当前的饮料体积和它的总容积,问能否用两个罐子装下所有饮料(\(n\le 100000\)) 题解:简单模拟即可,用两个最大的算一下,注意累和会爆\(int\) int a[100100], b[100100]; long long s…

[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 想一下,感觉最后的结果肯定是从某一段开始,这一段的gcd为1,然后向左和向右扩散的. 则枚举那一段在哪个地方. 我们设这一段中所有的数字都做了一次gcd. 假设在i..j这一段. 则求gcd的顺序是(i,i+1),(i+1,i+2)...(j-1,j) 这样a[j]=gcd(a[i],a[i+1]..a[j])了 即顺序求了一遍gcd. 这样,预处理一下i到j的gcd. 如果gcd[i][j]==1,则获取到一个可行方案. 求一…

[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 倒着来,维护一个最小的点就可以了. [代码] #include <bits/stdc++.h> using namespace std; const int N = 1e6; int a[N+10],n; int isdead[N+10]; int main(){ #ifdef LOCAL_DEFINE freopen("F:\\c++source\\rush_in.txt", "r",…

[链接] 我是链接,点我呀:) [题意] 在这里输入题意 [题解] 贪心选容量大的瓶子就好 [代码] #include <bits/stdc++.h> #define int long long using namespace std; const int N = 1e5; int n; int a[N+10],b[N+10]; main(){ #ifdef LOCAL_DEFINE freopen("F:\\c++source\\rush_in.txt", "r…

任意门:http://codeforces.com/contest/1066/problem/B B. Heaters time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vova's house is an array consisting of nn elements (yeah, this is the first probl…

A. Rounding time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasya has a non-negative integer n. He wants to round it to nearest integer, which ends up with 0. If n already ends up with 0, V…

A. Games time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Manao works on a sports TV. He's spent much time watching the football games of some country. After a while he began to notice diffe…