题意:

输入洗牌次数K(<=20),输入54张牌每次洗入的位置(不是交换的位置),输出洗好的牌。

AAAAAccepted code:

 #define HAVE_STRUCT_TIMESPEC
#include<bits/stdc++.h>
using namespace std;
multiset<int>st;
int a[];
int card[],b[];
int main(){
ios::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
for(int i=;i<=;++i)
card[i]=i;
int k;
cin>>k;
for(int i=;i<=;++i)
cin>>a[i];
for(int i=;i<=k;++i){
if(i&)
for(int j=;j<=;++j)
b[a[j]]=card[j];
else
for(int j=;j<=;++j)
card[a[j]]=b[j];
}
int x=;
for(int i=;i<=;++i){
if(k&)
x=b[i];
else
x=card[i];
if(x<=)
cout<<"S"<<x;
else if(x<=)
cout<<"H"<<x-;
else if(x<=)
cout<<"C"<<x-;
else if(x<=)
cout<<"D"<<x-;
else
cout<<"J"<<x-;
if(i<)
cout<<" ";
}
return ;
}

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