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  • 1131

    1131 - Just Two Functions
    Time Limit: 2 second(s) Memory Limit: 32 MB

    Let

    fn = a1 * fn-1 + b1 * fn-2 + c1 * gn-3

    gn = a2 * gn-1 + b2 * gn-2 + c2 * fn-3

    Find fn % M and gn % M. (% stands for the modulo operation.)

    Input

    Input starts with an integer T (≤ 50), denoting the number of test cases.

    Each case starts with a blank line. Next line contains three integers a1 b1 c1 (0 ≤ a1, b1, c1 < 25000). Next line contains three integers a2 b2 c2 (0 ≤ a2, b2, c2 < 25000). Next line contains three integers f0 f1 f2(0 ≤ f0, f1, f2 < 25000). Next line contains three integers g0 g1 g2 (0 ≤ g0, g1, g2 < 25000). The next line contains an integer M (1 ≤ M < 25000).

    Next line contains an integer q (1 ≤ q ≤ 100) denoting the number of queries. Next line contains q space separated integers denoting n. Each of these integers is non-negative and less than 231.

    Output

    For each case, print the case number in a line. Then for each query, you have to print one line containing fn % M and gn % M.

    Sample Input

    Output for Sample Input

    2

    1 1 0

    0 0 0

    0 1 1

    0 0 0

    20000

    10

    1 2 3 4 5 6 7 8 9 10

    1 1 1

    1 1 1

    2 2 2

    2 2 2

    20000

    5

    2 4 6 8 10

    Case 1:

    1 0

    1 0

    2 0

    3 0

    5 0

    8 0

    13 0

    21 0

    34 0

    55 0

    Case 2:

    2 2

    10 10

    34 34

    114 114

    386 386


    PROBLEM SETTER: JANE ALAM JAN
    思路:矩阵快速幂;
    比较简单,矩阵也比较好推。
      1 #include<stdio.h>
      2 #include<algorithm>
      3 #include<iostream>
      4 #include<string.h>
      5 #include<stdlib.h>
      6 #include<queue>
      7 #include<math.h>
      8 #include<vector>
      9 using namespace std;
     10 typedef long long LL;
     11 char str[100];
     12 char ask[100];
     13 LL ans[200];
     14 int M;
     15 typedef struct pp
     16 {
     17     LL m[10][10];
     18     pp()
     19     {
     20         memset(m,0,sizeof(m));
     21     }
     22 } maxtr;
     23 LL xishu[10];
     24 LL xisu[10];
     25 LL f[10];
     26 LL g[10];
     27 maxtr E()
     28 {
     29     maxtr ac;
     30     int i,j;
     31     for(i=0; i<10; i++)
     32     {
     33         for(j=0; j<10; j++)
     34         {
     35             if(i==j)
     36             {
     37                 ac.m[i][j]=1;
     38             }
     39             else ac.m[i][j]=0;
     40         }
     41     }
     42     return ac;
     43 }
     44 void Init(maxtr *p)
     45 {
     46     int i,j,k;
     47     memset(p->m,0,sizeof(p->m));
     48     p->m[0][0]=xishu[0];
     49     p->m[0][1]=xishu[1];
     50     p->m[0][5]=xishu[2];
     51     p->m[1][0]=1;
     52     p->m[2][1]=1;
     53     p->m[3][2]=xisu[2];
     54     p->m[3][3]=xisu[0];
     55     p->m[3][4]=xisu[1];
     56     p->m[4][3]=1;
     57     p->m[5][4]=1;
     58 }
     59 maxtr quick(maxtr C,LL m)
     60 {
     61     maxtr ak=E();
     62     int s;
     63     int i,j;
     64     while(m)
     65     {
     66         if(m&1)
     67         {
     68             maxtr vv;
     69             memset(vv.m,0,sizeof(vv.m));
     70             for(i=0; i<=5; i++)
     71             {
     72                 for(j=0; j<=5; j++)
     73                 {
     74                     for(s=0; s<=5; s++)
     75                     {
     76                         vv.m[i][j]=(vv.m[i][j]+C.m[i][s]*ak.m[s][j]%M)%M;
     77                     }
     78                 }
     79             }
     80             ak=vv;
     81         }
     82         maxtr vv;memset(vv.m,0,sizeof(vv.m));
     83         for(i=0; i<=5; i++)
     84         {
     85             for(j=0; j<=5; j++)
     86             {
     87                 for(s=0; s<=5; s++)
     88                 {
     89                     vv.m[i][j]=(vv.m[i][j]+C.m[i][s]*C.m[s][j]%M)%M;
     90                 }
     91             }
     92         }
     93         C=vv;
     94         m/=2;
     95     }
     96     return ak;
     97 }
     98 int main(void)
     99 {
    100     LL i,j,k;
    101     scanf("%lld",&k);
    102     LL s;
    103     for(s=1; s<=k; s++)
    104     {
    105         for(i=0; i<3; i++)
    106         {
    107             scanf("%lld",&xishu[i]);
    108         }
    109         for(i=0; i<3; i++)
    110         {
    111             scanf("%lld",&xisu[i]);
    112         }
    113         for(i=0; i<3; i++)
    114         {
    115             scanf("%lld",&f[i]);
    116         }
    117         for(i=0; i<3; i++)
    118         {
    119             scanf("%lld",&g[i]);
    120         }
    121         scanf("%d",&M);
    122         int cnt=0;
    123         scanf("%d",&cnt);
    124         for(i=0; i<cnt; i++)
    125         {
    126             scanf("%lld",&ans[i]);
    127         }
    128         printf("Case %d:
    ",s);
    129         for(i=0; i<cnt; i++)
    130         {
    131             if(ans[i]<2)
    132             {
    133                 printf("%lld %lld
    ",f[ans[i]]%M,g[ans[i]]%M);
    134             }
    135             else
    136             {
    137                 maxtr ac;
    138                 memset(ac.m,0,sizeof(ac.m));
    139                 Init(&ac);
    140                 maxtr ak=quick(ac,ans[i]-2);
    141                 LL ak1=ak.m[0][0]*f[2]%M+ak.m[0][1]*f[1]%M+ak.m[0][5]*g[0]%M+ak.m[0][2]*f[0]%M+ak.m[0][3]*g[2]%M+ak.m[0][4]*g[1]%M;
    142                 ak1%=M;
    143                 LL ak2=ak.m[3][2]*f[0]%M+ak.m[3][3]*g[2]%M+ak.m[3][4]*g[1]%M+ak.m[3][0]*f[2]%M+ak.m[3][1]*f[1]%M+ak.m[3][5]*g[0]%M;
    144                 ak2%=M;
    145                 printf("%lld %lld
    ",ak1,ak2);
    146             }
    147         }
    148     }return 0;
    149 }
    油!油!you@
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  • 原文地址:https://www.cnblogs.com/zzuli2sjy/p/5593143.html
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