2015蓝桥真题 （B组国赛）
标题：积分之迷
小明开了个网上商店，卖风铃。共有3个品牌：A，B，C。
为了促销，每件商品都会返固定的积分。
小明开业第一天收到了三笔订单：
第一笔：3个A + 7个B + 1个C，共返积分：315
第二笔：4个A + 10个B + 1个C，共返积分：420
第三笔：A + B + C，共返积分....
你能算出第三笔订单需要返积分多少吗？
请提交该整数，不要填写任何多余的内容。
参考答案：
105
-------------------------
点评：
明显可以暴力破解，只要循环嵌套2层即可。
如果一定想用数学技巧也可以：
3A + 7B + C = 315 ......(1)
4A + 10B + C = 420 ......(2)
求：A + B + C = ?
(2)-(1) 得：A+3B = 105
(1)式变形： 2(A+3B) + (A+B+C) = 315
显然，A+B+C = 315 - 105 * 2 = 105
标题：完美正方形
如果一些边长互不相同的正方形，可以恰好拼出一个更大的正方形，则称其为完美正方形。
历史上，人们花了很久才找到了若干完美正方形。比如：如下边长的22个正方形
2 3 4 6 7 8 12 13 14 15 16 17 18 21 22 23 24 26 27 28 50 60
如【图1.png】那样组合，就是一种解法。此时，
紧贴上边沿的是：60 50
紧贴下边沿的是：26 28 17 21 18
22阶完美正方形一共有8种。下面的组合是另一种：
2 5 9 11 16 17 19 21 22 24 26 30 31 33 35 36 41 46 47 50 52 61
如果告诉你该方案紧贴着上边沿的是从左到右依次为：47 46 61，
你能计算出紧贴着下边沿的是哪几个正方形吗？
请提交紧贴着下边沿的正方形的边长，从左到右，用空格分开。
不要填写任何多余的内容或说明文字。
参考答案：
50 33 30 41
---------------------
点评：
完美正方形问题如果完全没有线索来求解，十分困难。
不过此题给出了诸多线索，暴力破解是可行的。
首先可以确定大正方形的边长。
接下来只要先去枚举3条未知边的所有可能组合情况，剩下中间的情况就很少了。
#include <iostream>
#include <String.h>
using namespace std;
int a[]={2, 5 ,9 ,11 ,16, 17, 19, 21, 22, 24, 26, 30, 31, 33, 35, 36, 41, 50 ,52 };//正方形
int vis[19]; //访问数组
int que[30]; // 存储最下行每个正方形大小
int fon=0; //最下行正方形索引
int map[154][154]; //填充为1 未填充为0
void make(int x,int y,int k,int u) //填充和清除正方形 u为1为填充 否则为清空
{
if(u==1)
for(int i=x;i<x+k;i++)
for(int j=y;j<y+k;j++)
{
map[i][j]=1;
}
else
for(int i=x;i<x+k;i++)
for(int j=y;j<y+k;j++)
{
map[i][j]=0;
}
}
int panduan(int x,int y,int k) // 当前点 x y 填充大小k
{
if(x+k>154)
return 0;
if(y+k>154)
return 0;
//判断将被填入的正方形部分是否有已经被填充部分
for(int i=x;i<x+k;i++)
for(int j=y;j<y+k;j++)
{
if(map[i][j]==1)return 0;
}
return 1;
}
int f(int k) //k为遍历数组的索引
{
if(k>=19) //完成遍历
{
for(int i=0;i<fon;i++)
cout<<que[i]<<" ";
cout<<endl;
return 1;
}
for(int j=0;j<154;j++)
for(int i=0;i<154;i++)
{
if(map[i][j]==0) //如果未填充
{
for(int z=0;z<19;z++) //搜索数组中的正方形
{
if(vis[z]==0 && panduan(i,j,a[z])) //如果正方形未使用并且符合填充要求
{
int flog=0;
if(i+a[z]==154)
{
que[fon++]=a[z];
flog=1;
}
vis[z]=1;
make(i,j,a[z],1);
if(f(k+1)) return 1; //如果满足要求填充下一块
if(flog) //如果填过一块，从前一块开始填
fon--;
vis[z]=0;
make(i,j,a[z],0);
}
}
return 0;
}
}
return 0;
}
int main()
{
make(0,0,47,1);
make(0,47,46,1);
make(0,93,61,1);
f(0);
return 0;
}
标题：关联账户
为增大反腐力度，某地警方专门支队，对若干银行账户展开调查。
如果两个账户间发生过转账，则认为有关联。如果a,b间有关联, b,c间有关联，则认为a,c间也有关联。
对于调查范围内的n个账户（编号0到n-1），警方已知道m条因转账引起的直接关联。
现在希望知道任意给定的两个账户，求出它们间是否有关联。有关联的输出1，没有关联输出0
小明给出了如下的解决方案：
#include <stdio.h>
#define N 100
int connected(int* m, int p, int q)
{
return m[p]==m[q]? 1 : 0;
}
void link(int* m, int p, int q)
{
int i;
if(connected(m,p,q)) return;
int pID = m[p];
int qID = m[q];
for(i=0; i<N; i++) _____________________________________; //填空位置
}
int main()
{
int m[N];
int i;
for(i=0; i<N; i++) m[i] = i; //初始状态，每个节点自成一个连通域
link(m,0,1); //添加两个账户间的转账关联
link(m,1,2);
link(m,3,4);
link(m,5,6);
link(m,6,7);
link(m,8,9);
link(m,3,7);
printf("%d ", connected(m,4,7));
printf("%d ", connected(m,4,5));
printf("%d ", connected(m,7,9));
printf("%d ", connected(m,9,2));
return 0;
}
请分析源代码，并提交划线部分缺少的代码。不要填写已有代码或任何多余内容。
参考答案：
if(m[i]==pID) m[i]=qID
正确直接得分，否则把用户答案带入测评代码中的######，运行结果比对：
1 1 0 1 0 0
测评程序为：
#include <stdio.h>
#define N 100
int connected(int* m, int p, int q)
{
return m[p]==m[q]? 1 : 0;
}
void link(int* m, int p, int q)
{
int i;
if(connected(m,p,q)) return;
int pID = m[p];
int qID = m[q];
for(i=0; i<N; i++) ######;
}
void show(int* m)
{
int i;
for(i=0; i<10; i++) printf("%d=%d ", i, m[i]);
printf("\n");
}
int main()
{
int m[N];
int i;
for(i=0; i<N; i++) m[i] = i; //初始状态，每个节点自成一个连通域
link(m,0,1);
link(m,1,2);
link(m,3,4);
link(m,5,6);
link(m,6,7);
link(m,8,9);
link(m,3,7);
link(m,10,11);
link(m,6,10);
printf("%d ", connected(m,4,7));
printf("%d ", connected(m,4,5));
printf("%d ", connected(m,7,9));
printf("%d ", connected(m,11,4));
printf("%d ", connected(m,9,2));
printf("%d ", connected(m,12,5));
printf("\n");
return 0;
}
标题：密文搜索
福尔摩斯从X星收到一份资料，全部是小写字母组成。
他的助手提供了另一份资料：许多长度为8的密码列表。
福尔摩斯发现，这些密码是被打乱后隐藏在先前那份资料中的。
请你编写一个程序，从第一份资料中搜索可能隐藏密码的位置。要考虑密码的所有排列可能性。
数据格式：
输入第一行：一个字符串s，全部由小写字母组成，长度小于1024*1024
紧接着一行是一个整数n,表示以下有n行密码，1<=n<=1000
紧接着是n行字符串，都是小写字母组成，长度都为8
要求输出：
一个整数, 表示每行密码的所有排列在s中匹配次数的总和。
例如：
用户输入：
aaaabbbbaabbcccc
2
aaaabbbb
abcabccc
则程序应该输出：
4
这是因为：第一个密码匹配了3次，第二个密码匹配了1次，一共4次。
资源约定：
峰值内存消耗 < 512M
CPU消耗 < 3000ms
请严格按要求输出，不要画蛇添足地打印类似：“请您输入...” 的多余内容。
所有代码放在同一个源文件中，调试通过后，拷贝提交该源码。
注意: main函数需要返回0
注意: 只使用ANSI C/ANSI C++ 标准，不要调用依赖于编译环境或操作系统的特殊函数。
注意: 所有依赖的函数必须明确地在源文件中 #include <xxx>， 不能通过工程设置而省略常用头文件。
提交时，注意选择所期望的编译器类型。
用例：
输入：
askfjsahsiafsahifhgafghghhsaggggfhsafsaaskfjsahsiafsahifhgafghghhsaggggfhsafsa
1
hahhgggs
输出：
4
输入：
iskfjhhhsiafsahifgsafghgghssgaasfhsafsaaskfjsghsiafsahifhgaiaaghhaaggggfhisfskaskfjgsssfafhahihhgafghghhsaggggfhhafgaaskajsaasshasaaifahafghghhssgsgsfhsafsghakfjsagsiafsasifhgafghghhsagggffhsafsghskfjshhsaafsagifggsfghghhagggggshfhfsagskfjsfhsiafgghifhgafghghaaaghgaahsafsafskfjsafsiaisahiffgafahghssaggggfhsgfsaaskfjsahssafsahifhgafghghhaagggafhsafsgasffjssfsiafhahifhgafhhghhssgaggghsgfsaaskajsghsigffahifhgafifgshsaggggfhsafsiaskfjsahgiahsahjfhsafghghssggaagshgafsagskfjsahsiafsahifhgaggkghhsfgahffhaafsaaskfjfahsiassahifhgaffhghsgaahggfhaahsaaakgjgaasifhsahifsgafghghhhagaggfasafsahsshfsahsiafhahafhgafahghhsaggagfhhafss
1
hhhggsag
输出：
5
输入：
aakiafahsihasahifhgsfghihhsggahishhsfaaaskfjsahsiafaahgfhgafghghhsaggggfhsafsaaskhjsahgiafsahifhgafhhgfhsafgggfasafsafskfjsaksffffahiahgafghgihssagggfhsasssaakfgsahsiahsahishgafghkhgsahggsihsaisaaakfjsahsihfsaffghfshghghhsagghgihssfsaaakfjsahsiggsahishgafghghasafgggfasafsafhgfjsahshafsahsahgafaagsfsaggggfksahhaaskfjjahsiafsahifhgafghghhsaggggghsafsaasgaisafsisssahhfsgafghhhishggggghsafsaahkaisahsfafsasjghgashhghhsaggggfffafsafsghjahhsiafsihifhgafghghhsaagggfhsfgsagskfjsahsiassahiffgafghghhsfggghfgsafsafskfsssgfiafsahifhgkfghfhgsagaggfhsafgaaskfjsahsgafaahafhgafghghhgaggggfhsaffajfsfjashsiafsahgfhaafghgfhaajggjfhsafss
10
hggagghs
sjfssakh
hfhaggfi
sahsfias
sksjsahf
ifgfahhg
sasifhaj
akjfshas
iasihaff
saijhsaf
输出：
44
输入：
askfjaahsiafssaihhgafghghhsaggfgfhsakgaaskhjsahsiafsasishgafghghhsaggggfhsafsaaskfjsassiafsahifagffghghhsaggggfhsafsaafkfjsahsiassahifggafahghksjggggfhsafhaiskfjsassiagsahifhgafghghhsaggggfhsafsaaskfasghsiafsjjiahgafghghhsagggggfsaasaasffafahsiaasahhfggafghghhshgfhgfgsafiaasggjsghsiafsahifhgafghghhsasgggfhsahsaaskffsahsgafsahifhgffgsgihsaggagfhsafsaafhfjsassigfaahighgafghahhhagiggfhahfsaaskagfghsisfsahifhgafghghhsaggshfhaafsaaskfjssfsiafsahifggsfghfhssaggggfhsassaasgfjsahsiafsahifhgafghghhsaggggfhaafssskafasafsiagsahifsgafghghhkagfggfhsasshaskfjsahsiafsahsfhhafghghasagghgfhsafsaaskfjsahsiagshhifhgafghahhsaagggfhsafshaakfjsaasiafsahhfhgsfghghhsgggggshsassaaskhjsahsiafsahifhgagghghhsaggggfhsafsaaskfjsshsiagsahifhgafghahhfaggggfhsafsasskfjsahsiafsahsfhgafggghhgaigggfhsafsaaskajsahsiafsahihhkafgagghfagggsghfafsfaskfjsassiafsahihhgafghghhsagggafhsafsaaskfjsahsiafgahifhgafghghhsaggggfhsafsaaskfjsahsgakshhifhgafggghhssfgggfgsafiaaskfjsaasiafgahifhgakghgihsagfggfhsafsaahkfjsshiihfsahifhhaighhhhsaggghafsagsasskhjsahaiafhahifhgafggghhshgggffhsafsaasffjsahsaafshhifhgafghghhsaggggfhsafsaaskfjsahsiafsghifhgafgkghhsaggggfgsgffahakfjsahfhafsahifhgafghghhhaggggfhsafgaaskfjsaaaiafsahihhgafgkjhhsaggagfhsafsaaskfjsahsiafsahifhgafghghhsafgggfhsafsaashfjsahhisfaahiahgafghghhsaggakfhsafsajskfhsahgiagsahjfhgafghghhsaggggfhsgfsasskfgsahsiaasahifhgafghhhhsaggggfhsaffiaskfjfahsiafsahifhfafghgafsaggggffsafsaaskfjsahsiafsahifhfafghghhsaagggfhsafsasskfjgghsasfsahifhgafgsghgsahaggfhsafsaasafjsghgaafsahifigafgsgfhgaghjhfhsahsgasifjsahfiafsaisfhaafghghhsaggsgfhsafshasksjsahsgffaahgfhgsfghghhsaggggfhsafsaaskajsahsiafsaaifhgafghghhsgggggfhgsfsaasgfjsahgiaasahifhgafihahhsaggsgagsafsaaskfjsahaiaasahifhgafghshhhaggagfhsafsaaakfjfahsiafsahafhgafhhgghsaggggagsafsaaskfjhahsiafsasifigafghghhsaagggfhsafgassgfjsahsiafsahifhgagghggasaggggfhfafhaaskfjsahsiafsahiahfafghgghsaggggahsafsaaskfjaghsiafsahgfhgafagghhsaggagfhiafsaaskfjsahhiafsaaifhghfshgghsahgggfhsgfsaaskfjsahskafsahifaggfghghhsaggkghhsagshasafjsahsigfsahifhghgghghhsaggggfhsafsaashffsahsiafsahifhgsfghghhsaggggfhssfsaaagfjsahsigfsahighgffghghjsagskgfhsajsaaskahaahsiafsahifhgafjhghssagggffhaafsahskfhsahssafsahifhfafghghhsaggggagsafsaasafssahgiafsahifhgafghghhsaggggfhssfsaaskajhahsiafsahifhgafghghhsaggggfhsafsafskfjfassiafsahifhgafghghhsaggggfhsafsggskfjsahsiafsahifhgsfgaghhsaggggfhsafsaaskfjsgfsifssahifhasfhhghhsaggsgfhskfhaaskhjsahsisfsahifhjffghghhshggggfgsafsaaskfjsahsiassagighgsfghghhsagaggfhsafsafskfjsfhsisfsahifghafghghhsagggkfhfafsiaskgjsahsaafsagifhgafgaghhaaggggahsaffaaskfjiahsiafsahifhgafghghhsaggggfhsaffaaskfsaahsiafsahifhgafghghhsaggggshsafsaaskfassfsiafsfiiffhafghghhsagggsfhaafsaaskfjsghsiafhahifhgafghghhsaggggfhsafsaaskfjsahsiafsaiifsgafghgshsaggggfgsafsaassfhjahsisfsahhfhgagghghhsahgggfhsaffasskfjsahsaassahifhgaighghhsaggggfhsafsaaskfjsahsiafsahifhaafahghhsaggggfhshfsfaskfjsagsiafsahijhgahshghhsagaisfafafsaaskfjsahsiafsahhfhghfghhhhsaggggfhsafsassafjsahasaffahifhfafghfhhssggggfhsafsigskfjsahiiafsahifhgafghghssagaghfhasfsafskfhsahsiassahifagafghghhsagjggfhsafsaahkhssaisiafsahifhggfghghhsagggffhsafsasskfjsshsiafsahsfhgafghfhhsaggggfhsffsaashgjgahaiafsagifhgafghghhsaggggfhsafsaaskfjhhhsiafsahishgafhhghhsaggsffhsafsaakkfjsahsiafsahiahgafghghksfggggfhsafsfaskiasahsiafsahffhsahghghhsaggggghsafsaaikfjiifhiafaafifggafaagfhsagghgghsafsaaakfjsahsiafsahifhgasggghhsaggggfhsafssaskfjsahghafsahifhgasghghhsagggsfhsafsaaskfjsahsiafsihaffgafghghhsaagggfhsafsaaskfjsahsiafshhifhgafghihgsagfggfhsafsaaskijsahsiafgasifhgafgaahfssghggfhsfasgaskfjsahsiafsahifhgasghghhsagghgfhsafsaaskfjsahsiafsjhifhaafshgghsagggsshsafshaskhjsahsiafhahifhggfghghhsagfggfhshfsaahkfjsahaiafsgjifhfafggghhsaggggfjsafsaassffsahiiafsahffhgafghghhsaggggfhsafskasffasahsiafsahifhgafgaghhsaisgsfhhafjaaskfjsahgiaasahifhgafghgfhsaggfgfhfhssaaskfasahsiafgasifhgafghgghsagghgfksffsaaskfjsahsiafsahifhgafghghhsaagghshsffsasikfjhahsiahsafgfhgafahghhsafgfgfhhsfsaaskfjfagsfaisahiffgasghshssaggggfhsahsassafjgahsiaafahifhhafhhghfsagkggahsgfsaaskfjhahsiafhahgfgkaffhghhsaagggfhgafsahskgjsaisiafsahighfkfghgahsaggggfhsifsaaskfjshhsiafsahhfhgagfhgfhsagaggfifafsaaskfjsahsiafsahifhkahghshhsgsgggfhsafsaaskjssaggiafhahifhggfghgihsaggghffsafsaaasfjgahsasfsaiifhgafgaghhsakghffhsagsaaskfjsahsiafsaaifhfhfghfshsaggggfhsafsiasksjsahsiafsahifhgafghghhsafgggfhsassaasafasahsiafhshifhgifgfgahsaggggfhsafsaaskgjsjhsaafsfhifhgafghghhaaggggfhsafsaaskfgsahsiafsahifhhafghghhshggghfhsafsaaskffsahsiafsahifhgafgaghhsaggggfhsafsaasksjaagsiafsahafhghfghghhgaggghfhsafsaaskfjsahaiafsahifhgafghgghsaggggfhsafsaaskfjsahsiafsahafhgafshghhsssgggfhshfsaaskgjsahsiafgshifhgahghghhiaggggfhsagsaaskfjfahsiafhahshfgafghghhsaggggfhshfhaasfhjsahsiafsahifhgafghghhsafgggfhsffsaafkfjsfhsiagaffiahgafghghhsjghgafhsafaaaskfhsahsfaffahfahgafghghhsaggggfhsassaahkfasahsihasahifhkafghgfhkaggggfhsaffaaskfjshhsiafsahifshafghghhfagaggshaaasafskfjfahsiagsahgfhgafshghhsagghafhgafsaafkfksahsiafsahifhgafahghhsaggggfhsahsfahkfjsahsiahsahifhgjfgsghhgaahggghsafsaaskfjgkhiiaasahifhgafgggahsksgggfhsafsaaskjjsah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10
faashhig
hhgagggs
sfsaihas
ghghsgga
ghghhsag
ffhaiggh
hhgghsag
shghghaf
ghgfahsh
ghgsggfa
输出：
1840
输入：
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输出：
4253348
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstdlib>
#include<map>
#include<string>
#include<vector>
using namespace std;
#define MAX(a,b) ((a)>(b)?(a):(b))
#define MIN(a,b) ((a)<(b)?(a):(b))
int main()
{
time_t START=clock();
freopen("/home/lu/鏂囨。/绗竷灞婃澀宸炲喅璧涘笀璧勫煿璁細璧勬枡/甯堣祫鍩硅浼?2016-鏉窞/寰€灞婄湡棰?2015鐪熼-瑙ｉ鎬濊矾-婧愮爜/鍐宠禌/C++澶уB缁?4/娴嬭瘎鐢ㄤ緥/in4.txt","r",stdin);
string s;
cin>>s;
map<string,int>mp;
for(int i=7;i<s.size();++i)
{
string buf;
buf.assign(s.begin()+i-7,s.begin()+i+1);
sort(buf.begin(),buf.end());
++mp[buf];
}
int n;
cin>>n;
int sum=0;
while(n--)
{
cin>>s;
sort(s.begin(),s.end());
if(mp.find(s)!=mp.end())
sum+=mp[s];
}
cout<<sum<<endl;
cout<<"cost time:"<<(double)(clock()-START)/CLOCKS_PER_SEC<<"s"<<endl;
return 0;
}
标题：居民集会
蓝桥村的居民都生活在一条公路的边上，公路的长度为L，每户家庭的位置都用这户家庭到公路的起点的距离来计算，第i户家庭距起点的距离为di。
每年，蓝桥村都要举行一次集会。今年，由于村里的人口太多，村委会决定要在4个地方举行集会，其中3个位于公路中间，1个位最公路的终点。
已知每户家庭都会向着远离公路起点的方向去参加集会，参加集会的路程开销为家庭内的人数ti与距离的乘积。
给定每户家庭的位置di和人数ti，请为村委会寻找最好的集会举办地：p1, p2, p3, p4 (p1<=p2<=p3<=p4=L),使得村内所有人的路程开销和最小。
【输入格式】
输入的第一行包含两个整数n, L，分别表示蓝桥村的家庭数和公路长度。
接下来n行，每行两个整数di, ti，分别表示第i户家庭距离公路起点的距离和家庭中的人数。
【输出格式】
输出一行，包含一个整数，表示村内所有人路程的开销和。
【样例输入】
6 10
1 3
2 2
4 5
5 20
6 5
8 7
【样例输出】
18
【样例说明】
在距起点2, 5, 8, 10这4个地方集会，6个家庭需要的走的距离分别为1, 0, 1, 0, 2, 0，总的路程开销为1*3+0*2+1*5+0*20+2*5+0*7=18。
【数据规模与约定】
对于10%的评测数据，1<=n<=300。
对于30%的评测数据，1<=n<=2000，1<=L<=10000，0<=di<=L，di<=di+1，0<=ti<=20。
对于100%的评测数据，1<=n<=100000，1<=L<=1000000，0<=di<=L，di<=di+1，0<=ti<=1000000。
资源约定：
峰值内存消耗 < 512M
CPU消耗 < 5000ms
请严格按要求输出，不要画蛇添足地打印类似：“请您输入...” 的多余内容。
所有代码放在同一个源文件中，调试通过后，拷贝提交该源码。
注意: main函数需要返回0
注意: 只使用ANSI C/ANSI C++ 标准，不要调用依赖于编译环境或操作系统的特殊函数。
注意: 所有依赖的函数必须明确地在源文件中 #include <xxx>， 不能通过工程设置而省略常用头文件。
提交时，注意选择所期望的编译器类型。
#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstdlib>
#include<map>
#include<string>
#include<vector>
using namespace std;
#define MAX(a,b) ((a)>(b)?(a):(b))
#define MIN(a,b) ((a)<(b)?(a):(b))
#define ll long long
struct P
{
int n,dis;
ll sum;
bool kh;
};
P*ini(vector<int>&v,int n,int l)
{
P*p=new P[n+1];
for(int i=0;i<n;++i)
{
p[i].kh=false;
cin>>p[i].dis>>p[i].n;
}
p[0].sum=p[0].n;
for(int i=1;i<n+1;++i)
p[i].sum=p[i-1].sum+p[i].n;
if(p[n-1].dis==l)
{
p[n-1].kh=true;
p[n-1].n=0;
v.push_back(n-1);
}
v.push_back(n);
p[n].kh=true;
p[n].dis=l;
p[n].n=0;
return p;
}
void built_khd(vector<int>&v,P*p,int n)
{
int index_khd=0;
int khd=v[index_khd++];
int maxcost_index=-1;
ll maxcost=-1;
for(int i=0;i<n;++i)
{
if(khd<i)
khd=v[index_khd++];
ll cost=p[khd].dis-p[i].dis;
cost*=p[i].sum;
if(cost>maxcost)
{
maxcost=cost;
maxcost_index=i;
}
}
v.insert(upper_bound(v.begin(),v.end(),maxcost_index),maxcost_index);
p[maxcost_index].kh=true;
p[maxcost_index].n=0;
for(int i=0;i<n;++i)
if(p[i].kh)
p[i].sum=0;
else
if(i>0)
p[i].sum=p[i].n+p[i-1].sum;
else
p[i].sum=p[i].n;
}
ll work(int n,int l)
{
vector<int>v;
P*p=ini(v,n,l);
for(int i=0;i<3;++i)
built_khd(v,p,n);
int index=0;
int khd=v[index++];
ll cost=0;
for(int i=0;i<n;++i)
{
while(p[khd].dis<p[i].dis)
khd=v[index++];
cost+=(ll)(p[khd].dis-p[i].dis)*p[i].n;
}
return cost;
}
int main()
{
time_t START=clock();
freopen("/home/lu/鏂囨。/绗竷灞婃澀宸炲喅璧涘笀璧勫煿璁細璧勬枡/甯堣祫鍩硅浼?2016-鏉窞/寰€灞婄湡棰?2015鐪熼-瑙ｉ鎬濊矾-婧愮爜/鍐宠禌/C++澶уB缁?5/娴嬭瘎鐢ㄤ緥/in1.txt","r",stdin);
int n,l;
cin>>n>>l;
if(n<4)
{
cout<<"0"<<endl;
return 0;
}
cout<<work(n,l)<<endl;
cout<<"cost time:"<<(double)(clock()-START)/CLOCKS_PER_SEC<<"s"<<endl;
return 0;
}
标题：模型染色
在电影《超能陆战队》中，小宏可以使用他的微型机器人组合成各种各样的形状。
现在他用他的微型机器人拼成了一个大玩具给小朋友们玩。为了更加美观，他决定给玩具染色。
小宏的玩具由n个球型的端点和m段连接这些端点之间的边组成。下图给出了一个由5个球型端点和4条边组成的玩具，看上去很像一个分子的球棍模型。
由于小宏的微型机器人很灵活，这些球型端点可以在空间中任意移动，同时连接相邻两个球型端点的边可以任意的伸缩，这样一个玩具可以变换出不同的形状。在变换的过程中，边不会增加，也不会减少。
小宏想给他的玩具染上不超过k种颜色，这样玩具看上去会不一样。如果通过变换可以使得玩具变成完全相同的颜色模式，则认为是本质相同的染色。现在小宏想知道，可能有多少种本质不同的染色。
【输入格式】
输入的第一行包含三个整数n, m, k，
分别表示小宏的玩具上的端点数、边数和小宏可能使用的颜色数。端点从1到n编号。
接下来m行每行两个整数a, b，表示第a个端点和第b个端点之间有一条边。输入保证不会出现两条相同的边。
【输出格式】
输出一行，表示本质不同的染色的方案数。由于方案数可能很多，请输入方案数除10007的余数。
【样例输入】
3 2 2
1 2
3 2
【样例输出】
6
【样例说明】
令(a, b, c)表示第一个端点染成a，第二个端点染成b，第三个端点染成c，则下面6种本质不同的染色：(1, 1, 1), (1, 1, 2), (1, 2, 1), (1, 2, 2), (2, 1, 2), (2, 2, 2)。
而(2, 1, 1)与(1, 1, 2)是本质相同的，(2, 2, 1)与(1, 2, 2)是本质相同的。
【数据规模与约定】
对于20%的评测数据，1<=n<=5， 1<=k<=2。
对于50%的评测数据，1<=n<=10, 1<=k<=8。
对于100%的评测数据，1<=n<=10, 1<=m<=45, 1<=k<=30。
资源约定：
峰值内存消耗 < 512M
CPU消耗 < 5000ms
请严格按要求输出，不要画蛇添足地打印类似：“请您输入...” 的多余内容。
所有代码放在同一个源文件中，调试通过后，拷贝提交该源码。
注意: main函数需要返回0
注意: 只使用ANSI C/ANSI C++ 标准，不要调用依赖于编译环境或操作系统的特殊函数。
注意: 所有依赖的函数必须明确地在源文件中 #include <xxx>， 不能通过工程设置而省略常用头文件。
提交时，注意选择所期望的编译器类型。