全部评论 1

  • #include<bits/stdc++.h>
    using namespace std;
    int main() {
    	int n;
    	cin>>n;
    	if(n==1){
    		cout<<"1 "<<endl;
    	}
    	else if(n==2){
    		cout<<"1 2 "<<endl;
    		cout<<"2 1 "<<endl;
    	} 
    	else if(n==3){
    		cout<<"1 2 3 "<<endl;
    		cout<<"1 3 2 "<<endl;
    		cout<<"2 1 3 "<<endl;
    		cout<<"2 3 1 "<<endl;
    		cout<<"3 1 2 "<<endl;
    		cout<<"3 2 1 "<<endl;
    	}
    	else if(n==4){
    		cout<<"1 2 3 4 "<<endl;
    		cout<<"1 2 4 3 "<<endl;
    		cout<<"1 3 2 4 "<<endl;
    		cout<<"1 3 4 2 "<<endl;
    		cout<<"1 4 2 3 "<<endl;
    		cout<<"1 4 3 2 "<<endl;
    		cout<<"2 1 3 4 "<<endl;
    		cout<<"2 1 4 3 "<<endl;
    		cout<<"2 3 1 4 "<<endl;
    		cout<<"2 3 4 1 "<<endl;
    		cout<<"2 4 1 3 "<<endl;
    		cout<<"2 4 3 1 "<<endl;
    		cout<<"3 1 2 4 "<<endl;
    		cout<<"3 1 4 2 "<<endl;
    		cout<<"3 2 1 4 "<<endl;
    		cout<<"3 2 4 1 "<<endl;
    		cout<<"3 4 1 2 "<<endl;
    		cout<<"3 4 2 1 "<<endl;
    		cout<<"4 1 2 3 "<<endl;
    		cout<<"4 1 3 2 "<<endl;
    		cout<<"4 2 1 3 "<<endl;
    		cout<<"4 2 3 1 "<<endl;
    		cout<<"4 3 1 2 "<<endl;
    		cout<<"4 3 2 1 "<<endl;
    	}
    	else if(n==5){
    		cout<<"1 2 3 4 5 "<<endl;
    		cout<<"1 2 3 5 4 "<<endl;
    		cout<<"1 2 4 3 5 "<<endl;
    		cout<<"1 2 4 5 3 "<<endl;
    		cout<<"1 2 5 3 4 "<<endl;
    		cout<<"1 2 5 4 3 "<<endl;
    		cout<<"1 3 2 4 5 "<<endl;
    		cout<<"1 3 2 5 4 "<<endl;
    		cout<<"1 3 4 2 5 "<<endl;
    		cout<<"1 3 4 5 2 "<<endl;
    		cout<<"1 3 5 2 4 "<<endl;
    		cout<<"1 3 5 4 2 "<<endl;
    		cout<<"1 4 2 3 5 "<<endl;
    		cout<<"1 4 2 5 3 "<<endl;
    		cout<<"1 4 3 2 5 "<<endl;
    		cout<<"1 4 3 5 2 "<<endl;
    		cout<<"1 4 5 2 3 "<<endl;
    		cout<<"1 4 5 3 2 "<<endl;
    		cout<<"1 5 2 3 4 "<<endl;
    		cout<<"1 5 2 4 3 "<<endl;
    		cout<<"1 5 3 2 4 "<<endl;
    		cout<<"1 5 3 4 2 "<<endl;
    		cout<<"1 5 4 2 3 "<<endl;
    		cout<<"1 5 4 3 2 "<<endl;
    		cout<<"2 1 3 4 5 "<<endl;
    		cout<<"2 1 3 5 4 "<<endl;
    		cout<<"2 1 4 3 5 "<<endl;
    		cout<<"2 1 4 5 3 "<<endl;
    		cout<<"2 1 5 3 4 "<<endl;
    		cout<<"2 1 5 4 3 "<<endl;
    		cout<<"2 3 1 4 5 "<<endl;
    		cout<<"2 3 1 5 4 "<<endl;
    		cout<<"2 3 4 1 5 "<<endl;
    		cout<<"2 3 4 5 1 "<<endl;
    		cout<<"2 3 5 1 4 "<<endl;
    		cout<<"2 3
    

    5天前 来自 广东

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