hdu多校第3场A.Ascending Rating

Problem A. Ascending Rating

Time Limit: / MS (Java/Others)    Memory Limit: / K (Java/Others)
Total Submission(s):     Accepted Submission(s): 

Problem Description
Before the start of contest, there are n ICPC contestants waiting in a long queue. They are labeled by  to n from left to right. It can be easily found that the i-th contestant's QodeForces rating is ai.
Little Q, the coach of Quailty Normal University, is bored to just watch them waiting in the queue. He starts to compare the rating of the contestants. He will pick a continous interval with length m, say [l,l+m−], and then inspect each contestant from left to right. Initially, he will write down two numbers maxrating=− and count=. Everytime he meets a contestant k with strictly higher rating than maxrating, he will change maxrating to ak and count to count+.
Little T is also a coach waiting for the contest. He knows Little Q is not good at counting, so he is wondering what are the correct final value of maxrating and count. Please write a program to figure out the answer.

Input
The first line of the input contains an integer T(≤T≤), denoting the number of test cases.
In each test case, there are  integers n,m,k,p,q,r,MOD(≤m,k≤n≤,≤p,q,r,MOD≤) in the first line, denoting the number of contestants, the length of interval, and the parameters k,p,q,r,MOD.
In the next line, there are k integers a1,a2,...,ak(≤ai≤), denoting the rating of the first k contestants.
To reduce the large input, we will use the following generator. The numbers p,q,r and MOD are given initially. The values ai(k<i≤n) are then produced as follows :
ai=(p×ai−+q×i+r)modMOD

It is guaranteed that ∑n≤× and ∑k≤×.

Output
Since the output file may be very large, let's denote maxratingi and counti as the result of interval [i,i+m−1].
For each test case, you need to print a single line containing two integers A and B, where :
AB==∑i=1n−m+(maxratingi⊕i)∑i=1n−m+(counti⊕i)

Note that ``⊕'' denotes binary XOR operation.

Sample Input

Sample Output

Source
 Multi-University Training Contest 

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题意：一个长度为n的序列，输入给出来k个数，剩下的n-k+1个数由递推公式得出， 求出所有区间[i，i+m+1]的最大值异或 i 的和和在这一个区间最大值变化次数异或 i 的和

双端队列：单调队列倒着跑最大值，count=最大值变化的次数；

#include <cstdio>
#include <cstring>
#include <iostream>
//#include <algorithm>
#include <vector>
using namespace std;
#define ll long long
//#define mod 998244353
const int manx=1e7+;
int n,m,k,p,q,r,mod,a[manx],que[manx];
int main()
{
    int T;
    scanf("%d",&T);
    while(T--) {
        scanf("%d %d %d %d %d %d %d",&n,&m,&k,&p,&q,&r,&mod);
        for(int i = ; i <= k; i++) scanf("%d",&a[i]);
        for(int i = k + ; i <= n; i++) {
            a[i]=(1LL * p * a[i-] + 1LL * q * i + 1LL * r) % mod;
        }
        int s=,t=;
        ll max=;
        ll cot=;
        for(int i=n;i>;i--)
        {
            while(s<t&&a[que[t-]]<=a[i]) t--;
            que[t++]=i;
            while(que[s]>i+m-)
                s++;
            if(i<=n-m+)
            {

                max+=(ll)i^(ll)a[que[s]];
                cot+=(ll)i^(ll)(t-s);
            }

        }
        printf("%lld %lld\n",max,cot);

    }
    return ;
}