Problem E: 弹珠游戏(2023-T5)

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:2 Solved:1

Description

Input

Output

Sample Input Copy

3
2 3 1
7
1 1
1 2
2 1
1 2
1 1
2 2
1 2

Sample Output Copy

-1
-1
1
1
2

HINT

【输入样例2】

5

0 3 5 3 4

6

1 1

1 2

2 4

1 2

2 3

1 2

 

【输出样例2】

1

-1

4

3


Source/Category