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想了挺久。还是用最普通的想法水过。。。就是把它的步骤反过来做。。。 #include<iostream> using namespace std; int main(){ int N,x,i,j,k,t,a[100]; cin>>N; while(N--){ cin>>x; a[x-1]=x; for(i=x-1;i>=1;i--){ a[i-1]=i; for(j=1;j<=i;j++){ //翻转 t=a[x-1]; for(k=1;k<=x-i;k++){ a[x-k]=a[x-k-1]; } a[i-1]=t; } } for(i=0;i<x;i++){ cout<<a[i]<<" "; } cout<<endl; } return 0; } Followed by:
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