啊?求hack

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

int n,a[10000],t,maxa,mina,maxnum,minnum,zheng,fu,zero;

int main()
{
	scanf("%d",&t);
	
	while(t--){
		maxa=-1e9,mina=1e9;
		zheng=fu=zero=0;
		scanf("%d",&n);
		for(int i=1;i<=n;i++)
		{
			scanf("%d",&a[i]);
			if(a[i]>maxa) maxa=a[i],maxnum=i;
			if(a[i]<mina) mina=a[i],minnum=i;
			if(a[i]>0) zheng++;
			else if(a[i]<=0 ) fu++;
			else zero++;
		}
		if(maxa==mina) {
			cout<<"0"<<endl;
			continue;
		}
		if(abs(zheng-fu)<=5)
		{
			if(abs(mina)>abs(maxa))
			{
				cout<<zheng+n-1<<endl;
				for(int i=1;i<=n;i++)
					if(a[i]>0)
						cout<<i<<" "<<minnum<<endl;
				for(int i=n-1;i>=1;i--)
					cout<<i<<" "<<i+1<<endl;
				}
			else {
				cout<<fu+n-1<<endl; 
				for(int i=1;i<=n;i++)
					if(a[i]<0)
						cout<<i<<" "<<maxnum<<endl;
				for(int i=2;i<=n;i++)
					cout<<i<<" "<<i-1<<endl;
			}
		}
		else{
			int maxshu=max(zheng,fu);
			if(zheng>fu) {
				cout<<n-1+5+fu;
				for(int i=1;i<=5;i++) cout<<maxnum<<" "<<maxnum<<endl;
				for(int i=1;i<=n;i++) if(a[i]<0) cout<<i<<" "<<maxnum<<endl;
				for(int i=2;i<=n;i++) cout<<i<<" "<<i-1<<endl;
			}
			if(zheng<fu) {
				cout<<n-1+5+zheng;
				for(int i=1;i<=5;i++) cout<<minnum<<" "<<minnum<<endl;
				for(int i=1;i<=n;i++) if(a[i]>0) cout<<i<<" "<<minnum<<endl;
				for(int i=n-1;i>=1;i--) cout<<i<<" "<<i+1<<endl;
			}
		}
	}
	
	return 0;
}