首页 >web前端 >html教程 >Codeforces Round #264 (Div. 2)_html/css_WEB-ITnose

Codeforces Round #264 (Div. 2)_html/css_WEB-ITnose

WBOY
WBOY原创
2016-06-24 11:58:451087浏览

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:  <p></p>  <p> </p>  <pre name="code" class="sycode">#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>

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:  <p></p>  <p> </p>  <pre name="code" class="sycode">#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:  <p></p>  <p> </p>  <pre name="code" class="sycode">#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>  <p></p> </int></vector></cstring></cstdio>
声明:
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系admin@php.cn