adv钓鱼题

4
10
4 5
6 2
10 2
10
4 5
6 2
10 2
60
1 20
29 20
50 20
60
1 20
20 20
60 20

#include<stdio.h>
#define SIZE 100
int data[SIZE];
int Gate[3][2];
int D[3];
int num;
int bushu,minbushu;
int pos[SIZE];

int leftorder(int p){
	int	ps=Gate[p][0];
	int people=Gate[p][1];
	int left=0;
	int right=num-1;
	int orig=0;
	int count=0;
	for(int n=people;n>0;){
		if(ps-orig-1>=left&&pos[ps-1-orig]==0){
			pos[ps-orig-1]=-(p+1);
			count=count+orig+1;
			n--;
		}
		if(n==0) break;
		if(ps-1+orig<=right&&pos[ps-1+orig]==0){
			pos[ps+orig-1]=-(p+1);
			n--;
			count=count+orig+1;
		}
		orig++;
	}
	return count;
}
int rightorder(int p){
	int	ps=Gate[p][0];
	int people=Gate[p][1];
	int left=0;
	int right=num-1;
	int orig=0;
	int count=0;
	for(int n=people;n>0;){
		if(ps-1+orig<=right&&pos[ps-1+orig]==0){
			pos[ps+orig-1]=-(p+1);
			n--;
			count=count+orig+1;
		}
		if(n==0) break;
		if(ps-orig-1>=left&&pos[ps-1-orig]==0){
			pos[ps-orig-1]=-(p+1);
			n--;
			count=count+orig+1;
		}
		orig++;
	}
	return count;
}
void init(int p){
	for(int i=0;i<num;i++){
		if(pos[i]==-p-1){
			pos[i]=0;
		}
	}
}
void DFS(int step,int bushu){
	if(step==3){
		
		if(bushu<minbushu){
			minbushu=bushu;
		}
		return;
	}
	if(bushu>minbushu) return;
	for(int i=0;i<3;i++){
		if(!D[i]){
			D[i]=1;
			if(i==0){
				DFS(step+1,bushu+leftorder(i));
				init(i);
			}
			if(i==2){

				DFS(step+1,bushu+rightorder(i));
				init(i);
			}
			if(i==1){
				DFS(step+1,bushu+leftorder(i));
				init(i);
				DFS(step+1,bushu+rightorder(i));
				init(i);
			}
			D[i]=0;
		}
	}
}


int main(){
	//将txt内数据读入
	freopen("a.txt","r",stdin);
	int nCase;
	scanf("%d",&nCase);
	for(int tc=0;tc<nCase;tc++)
	{
		scanf("%d",&num);
		for(int i=0;i<3;i++)
		{
			scanf("%d%d",&Gate[i][0],&Gate[i][1]);
		}
		for(int i=0;i<3;i++){
			D[i]=0;
		}
		for(int i=0;i<SIZE;i++){
			pos[i]=0;
		}
		minbushu=0x0FFFFFFF;
		bushu=0;
		DFS(0,0);
		printf("%d
",minbushu);
		

		//打印读入数据
		/*cout<<num<<endl;
		for(int i=0;i<3;i++){
			cout<<Gate[i][0]<<" "<<Gate[i][1]<<endl;
		}*/
	}
	return 0;
}