Home > Database > Mysql Tutorial > body text

Codeforces Round #264 (Div. 2)

WBOY
Release: 2016-06-07 15:44:18
Original
1070 people have browsed it

Codeforces Round #264 (Div. 2) 题目链接 A:注意特判正好的情况,其他就一个个去判断记录最大即可 B:扫一遍,不够的用钱去填即可,把多余能量记录下来 C:把主副对角线处理出来,然后黑白只能各选一个最大的放即可 D:转化为DAG最长路问题,每个数字记录

Codeforces Round #264 (Div. 2)

题目链接

A:注意特判正好的情况,其他就一个个去判断记录最大值即可

B:扫一遍,不够的用钱去填即可,把多余能量记录下来

C:把主副对角线处理出来,然后黑格白格只能各选一个最大的放即可

D:转化为DAG最长路问题,每个数字记录下在每个序列的位置,如果一个数字能放上去,那么肯定是每个序列上的数字都是在之前最末尾数字的后面

E:大力出奇迹,预处理出树,然后每次查询从当前位置一直往上找到一个符合的即可,如果没有符合的就是-1

代码:

A:

#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;

int n, s;

int main() {
	scanf("%d%d", &n, &s);
	int x, y;
	int flag = 1;
	int ans = 0;
	for (int i = 0; i <br>
B:
<pre class="brush:php;toolbar:false">#include <cstdio>
#include <cstring>

const int N = 100005;
typedef long long ll;

int n;
ll h[N];

int main() {
	scanf("%d", &n);
	for (int i = 1; i  h[i - 1]) {
			ll need = h[i] - h[i - 1];
			if (now >= need) {
				now -= need;
			} else {
				ans += need - now;
				now = 0;
			}
		} else {
			now += h[i - 1] - h[i];
		}
	}
	printf("%lld\n", ans);
	return 0;
}</cstring></cstdio>
Copy after login

C:
#include <cstdio>
#include <cstring>

const int N = 2005;

typedef long long ll;

int n;
ll g[N][N], zhu[N + N], fu[N + N];

int main() {
	scanf("%d", &n);
	for (int i = 0; i <br>
D:
<pre class="brush:php;toolbar:false">#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;

const int N = 1005;

struct Num {
	int v[10], la;
} num[N];

bool cmp(Num a, Num b) {
	return a.la <br>
E:
<pre class="brush:php;toolbar:false">#include <cstdio>
#include <cstring>
#include <vector>
using namespace std;

const int N = 100005;

int n, q, val[N], f[N];
vector<int> g[N];

void dfs(int u, int fa) {
	f[u] = fa;
	for (int i = 0; i  1) return u;
		u = f[u];
	}
	return -1;
}

int main() {
	scanf("%d%d", &n, &q);
	for (int i = 1; i <br>
<br>



</int></vector></cstring></cstdio>
Copy after login
Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!