c_cpp GFG按特定顺序排序

Posted 2021-05-14

#include<iostream>
#include<bits/stdc++.h>
using namespace std;

// #Problem #Soting #GFG
// https://practice.geeksforgeeks.org/problems/sort-in-specific-order/0

void swap(int &a,int &b){
    int t=a;
    a=b;
    b=t;
}

int main(){
    int t;
    cin>>t;
    while(t--){
        int n;
        cin>>n;
        vector<int> a(n);
        for(int i=0;i<n;i++){
            cin>>a[i];
        }
        int odd_i=-1;
        for(int i=0;i<n;i++){
            if(a[i]%2!=0){
                odd_i++;
                swap(a[i],a[odd_i]);	// seperating odd and even
            }
        }
        sort(a.begin(),a.begin()+odd_i+1);	// sorting them seperately
        sort(a.begin()+odd_i+1,a.end());
        for(int i=odd_i;i>=0;i--){
            cout<<a[i]<<" ";
        }
        for(int i=odd_i+1;i<n;i++){
            cout<<a[i]<<" ";
        }
        cout<<endl;
    }
    return 0;
}