AtCoder Beginner Contest 171
D
Replacing
AtCoder
⌀ 498
原题
← CE →
翻译中…

Problem Statement

翻译中…

You have a sequence $A$ composed of $N$ positive integers: $A_{1}, A_{2}, \cdots, A_{N}$.

翻译中…

You will now successively do the following $Q$ operations:

翻译中…
  • In the $i$-th operation, you replace every element whose value is $B_{i}$ with $C_{i}$.
翻译中…

For each $i$ $(1 \leq i \leq Q)$, find $S_{i}$: the sum of all elements in $A$ just after the $i$-th operation.

翻译中…

Constraints

翻译中…
  • All values in input are integers.
  • $1 \leq N, Q, A_{i}, B_{i}, C_{i} \leq 10^{5}$
  • $B_{i} \neq C_{i}$
翻译中…

Input

翻译中…

Input is given from Standard Input in the following format:

翻译中…

N
A_{1} A_{2} \cdots A_{N}
Q
B_{1} C_{1}
B_{2} C_{2}
\vdots
B_{Q} C_{Q}

翻译中…

Output

翻译中…

Print $Q$ integers $S_{i}$ to Standard Output in the following format:

翻译中…

S_{1}
S_{2}
\vdots
S_{Q}

翻译中…

Note that $S_{i}$ may not fit into a $32$-bit integer.

翻译中…

样例

Input #1
4
1 2 3 4
3
1 2
3 4
2 4
Output #1
11
12
16
Initially, the sequence $A$ is $1,2,3,4$. After each operation, it becomes the following: - $2, 2, 3, 4$ - $2, 2, 4, 4$ - $4, 4, 4, 4$
Input #2
4
1 1 1 1
3
1 2
2 1
3 5
Output #2
8
4
4
Note that the sequence $A$ may not contain an element whose value is $B_{i}$.
Input #3
2
1 2
3
1 100
2 100
100 1000
Output #3
102
200
2000
题目信息
题号
abc171_d
时间限制
2 s
内存限制
1024 MB

题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。