数据结构演练

3 5月 , 2019

7-43 Shuffling Machine（20 分）

Shuffling is a procedure used to randomize a deck of playing cards.
Because standard shuffling techniques are seen as weak, and in order to
avoid “inside jobs” where employees collaborate with gamblers by
performing inadequate shuffles, many casinos employ automatic shuffling
machines. Your task is to simulate a shuffling machine.

The machine shuffles a deck of 54 cards according to a given random
order and repeats for a given number of times. It is assumed that the
initial status of a card deck is in the following order:

where “S” stands for “Spade”, “H” for “Heart”, “C” for “Club”, “D” for
“Diamond”, and “J” for “Joker”. A given order is a permutation of
distinct integers in [威尼斯人线上娱乐，1, 54]. If the number at the i-th position is j, it means
to move the card from position i to
position j. For
example, suppose we only have 5 cards: S3, H5, C1, D13 and J2. Given a
shuffling order {4, 2, 5, 3, 1}, the result will be: J2, H5, D13, S3,
C1. If we are to repeat the shuffling again, the result will be: C1, H5,
S3, J2,
D13.

1042. Shuffling Machine (20)

400 ms

65536 kB

16000 B

Standard

CHEN, Yue

Shuffling is a procedure used to randomize a deck of playing cards.
Because standard shuffling techniques are seen as weak, and in order to
avoid “inside jobs” where employees collaborate with gamblers by
performing inadequate shuffles, many casinos employ automatic
shuffling machines
. Your task is to simulate a shuffling machine.

The machine shuffles a deck of 54 cards according to a given random
order and repeats for a given number of times. It is assumed that the
initial status of a card deck is in the following order:

S1, S2, …, S13, H1, H2, …, H13, C1, C2, …, C13, D1, D2, …, D13,
J1, J2

where “S” stands for “Spade”, “H” for “Heart”, “C” for “Club”, “D” for
“Diamond”, and “J” for “Joker”. A given order is a permutation of
distinct integers in [1, 54]. If the number at the i-th position is j,
it means to move the card from position i to position j. For example,
suppose we only have 5 cards: S3, H5, C1, D13 and J2. Given a shuffling
order {4, 2, 5, 3, 1}, the result will be: J2, H5, D13, S3, C1. If we
are to repeat the shuffling again, the result will be: C1, H5, S3, J2,
D13.

Input Specification:

Each input file contains one test case. For each case, the first line
contains a positive integer K (<= 20) which is the number of repeat
times. Then the next line contains the given order. All the numbers in a
line are separated by a space.

Output Specification:

For each test case, print the shuffling results in one line. All the
cards are separated by a space, and there must be no extra space at the
end of the line.

Sample Input:

2
36 52 37 38 3 39 40 53 54 41 11 12 13 42 43 44 2 4 23 24 25 26 27 6 7 8 48 49 50 51 9 10 14 15 16 5 17 18 19 1 20 21 22 28 29 30 31 32 33 34 35 45 46 47

Sample Output:

S7 C11 C10 C12 S1 H7 H8 H9 D8 D9 S11 S12 S13 D10 D11 D12 S3 S4 S6 S10 H1 H2 C13 D2 D3 D4 H6 H3 D13 J1 J2 C1 C2 C3 C4 D1 S5 H5 H11 H12 C6 C7 C8 C9 S2 S8 S9 H10 D5 D6 D7 H4 H13 C5

#include <iostream>
#include <cstdio>
using namespace std;
const int N=54;
char mp={'S','H','C','D','J'};
int s[N+1],e[N+1],n[N+1];
int main() {
int k;
scanf("%d",&k);
for(int i=1;i<=N;++i) s[i]=i;
for(int i=1;i<=N;++i) scanf("%d",&n[i]);
for(int num=0;num<k;++num) {
for(int i=1;i<=N;++i) e[n[i]]=s[i];
for(int i=1;i<=N;++i) s[i]=e[i];
}
for(int i=1;i<=N;++i) {
if(i!=1) printf(" ");
s[i]--;
printf("%c%d",mp[s[i]/13],s[i]%13+1);
}
return 0;
}

Shuffling is a procedure used to randomize a deck of playing cards.
Because standard shuffling techniques are seen as weak, and in order
to avoid “inside jobs” where employees collaborate with gamblers by
performing inadequate shuffles, many casinos employ automatic
shuffling machines
. Your task is to simulate a shuffling machine.

The machine shuffles a deck of 54 cards according to a given random
order and repeats for a given number of times. It is assumed that the
initial status of a card deck is in the following order:

S1, S2, …, S13, H1, H2, …, H13, C1, C2, …, C13, D1, D2, …,
D13, J1, J2

where “S” stands for “Spade”, “H” for “Heart”, “C” for “Club”, “D” for
“Diamond”, and “J” for “Joker”. A given order is a permutation of
distinct integers in [1, 54]. If the number at the i-th position is
j, it means to move the card from position i to position j. For
example, suppose we only have 5 cards: S3, H5, C1, D13 and J2. Given a
shuffling order {4, 2, 5, 3, 1}, the result will be: J2, H5, D13, S3,
C1. If we are to repeat the shuffling again, the result will be: C1,
H5, S3, J2, D13.

Input Specification:

Each input file contains one test case. For each case, the first line
contains a positive integer K (<= 20) which is the number of repeat
times. Then the next line contains the given order. All the numbers in
a line are separated by a space.

Output Specification:

For each test case, print the shuffling results in one line. All the
cards are separated by a space, and there must be no extra space at
the end of the line.

Sample Input:

2
36 52 37 38 3 39 40 53 54 41 11 12 13 42 43 44 2 4 23 24 25 26 27 6 7 8 48 49 50 51 9 10 14 15 16 5 17 18 19 1 20 21 22 28 29 30 31 32 33 34 35 45 46 47

Sample Output:

S7 C11 C10 C12 S1 H7 H8 H9 D8 D9 S11 S12 S13 D10 D11 D12 S3 S4 S6 S10 H1 H2 C13 D2 D3 D4 H6 H3 D13 J1 J2 C1 C2 C3 C4 D1 S5 H5 H11 H12 C6 C7 C8 C9 S2 S8 S9 H10 D5 D6 D7 H4 H13 C5

#include<iostream>
#include<string>
using namespace std;
int main(){
string a,b;
char temp;
int c,times;
cin>>times;
for(int i=1;i<55;i++){
cin>>c[i];
}
for(int i=1;i<53;i++){
if(i<=13){
sprintf(temp,"%d",i);
string s(temp);
a[i]="S"+s;
}else if(i<=13+13){
sprintf(temp,"%d",i-13);
string s(temp);
a[i]="H"+s;
}else if(i<=13+13+13){
sprintf(temp,"%d",i-13-13);
string s(temp);
a[i]="C"+s;
}else if(i<=13+13+13+13){
sprintf(temp,"%d",i-13-13-13);
string s(temp);
a[i]="D"+s;
}
}
a="J1";
a="J2";
for(int j=1;j<=times;j++){
for(int i=1;i<=54;i++){
b[c[i]]=a[i];
}
for(int i=1;i<=54;i++){
a[i]=b[i];
}
}
for(int i=1;i<=54;i++){
if(i==54){
cout<<a[i];
}else{
cout<<a[i]<<" ";
}

}
return 0;
}

Input Specification:

Each input file contains one test case. For each case, the first line
contains a positive integer K (≤20) which is the number of repeat times. Then the
next line contains the given order. All the numbers in a line are
separated by a
space.

Output Specification:

For each test case, print the shuffling results in one line. All the
cards are separated by a space, and there must be no extra space at the
end of the line. Sample Input:

2
36 52 37 38 3 39 40 53 54 41 11 12 13 42 43 44 2 4 23 24 25 26 27 6 7 8 48 49 50 51 9 10 14 15 16 5 17 18 19 1 20 21 22 28 29 30 31 32 33 34 35 45 46 47

Sample Output:

S7 C11 C10 C12 S1 H7 H8 H9 D8 D9 S11 S12 S13 D10 D11 D12 S3 S4 S6 S10 H1 H2 C13 D2 D3 D4 H6 H3 D13 J1 J2 C1 C2 C3 C4 D1 S5 H5 H11 H12 C6 C7 C8 C9 S2 S8 S9 H10 D5 D6 D7 H4 H13 C5

to
shuffling都必须全体读掉。相当于说尽管洗牌次数是0次也要输入洗牌顺序。

1 #include <stdio.h>
2
3 typedef struct _card {
4     char letter;
5     int num;
6 } Card;
7
8 void init(Card ca[]);
9 void print(Card ca[]);
10
11 int main(int argc, char const *argv[])
12 {
13     Card ca, cb;
14     int order;
15     int k;
16
17     init(ca);
18
19     scanf("%d", &k);
20
21     // how to shuffling
22     for ( int i = 0; i < 54; i++ ) {
23         scanf("%d", &order[i]);
24     }
25     // shuffling
26     for ( int i = 0; i < k; i++ ) {
27         for ( int j = 0; j < 54; j++ ) {
28             cb[order[j]-1] = ca[j];
29         }
30         for ( int j = 0; j < 54; j++ ) {
31             ca[j] = cb[j];
32         }
33     }
34
35     print(ca);
36
37     return 0;
38 }
39
40 void init(Card ca[])
41 {
42     char a[] = "SHCDJ";
43     int i;
44     for ( i = 0; i < 54; i++ ) {
45         ca[i].letter = a[i/13];
46         ca[i].num = i%13+1;
47     }
48 }
49
50 void print(Card ca[])
51 {
52     for ( int i = 0; i < 54; i++ ) {
53         printf("%c%d", ca[i].letter, ca[i].num);
54         if ( i < 53 )
55             printf(" ");
56     }
57     printf("\n");
58 }