This commit is contained in:
Zengtudor 2024-08-06 17:09:06 +08:00
parent c41fcc8ff5
commit faeff459a1

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day4/T435167/fixed.cpp Normal file
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//TODO
#include<bits/stdc++.h>
using namespace std;
const int MAX_N=1e3+5;
int t,n;
int a[MAX_N],b[MAX_N];
bool is_all_go_up(int a[],int size){
for (int i=2; i<=size; i++) {
if (a[i-1]>a[i]) {
return false;
}
}
return true;
}
bool is_all_same(int a[],int size){
for(int i=2;i<=size;i++){
if (a[i]!=a[1]) {
return false;
}
}
return true;
}
void sort_fix(int arr[],int b[],int size){
vector<pair<int,int>> hist;
for (int i=1; i<=size; i++) {
int p_max=-1;
int max_num=arr[i];
for (int j=i; j<=size; j++) {
if (max_num<arr[j]){
p_max=j;
max_num=arr[j];
}
}
if (p_max==-1) {
continue;
}
if(arr[p_max]!=arr[i]){
hist.push_back(make_pair(p_max, i));
swap(a[i],a[p_max]);
swap(b[p_max],b[i]);
}
}
//TODO
}
int main(){
cin.sync_with_stdio(false);
cin.tie(0);
cin>>t;
for (int i=1; i<=t; i++) {
cin>>n;
for (int j=1; j<=n; j++) {
cin>>a[j];
}
for (int j=1; j<=n; j++) {
cin>>b[j];
}
if (is_all_go_up(a, n)) {
cout<<0<<endl;
continue;
}
if (is_all_same(a, n)) {
cout<<-1<<endl;
continue;
}
sort_fix(a,b,n);
}
}