A13382. K-th Not Divisible by n
编程题
普及/提高-
知识点
题目描述
You are given two positive integers $n$ and $k$ . Print the $k$ -th positive integer that is not divisible by $n$ .
For example, if $n=3$ , and $k=7$ , then all numbers that are not divisible by $3$ are: $1, 2, 4, 5, 7, 8, 10, 11, 13 \dots$ . The $7$ -th number among them is $10$ .
For example, if $n=3$ , and $k=7$ , then all numbers that are not divisible by $3$ are: $1, 2, 4, 5, 7, 8, 10, 11, 13 \dots$ . The $7$ -th number among them is $10$ .
输入格式
The first line contains an integer $t$ ( $1 \le t \le 1000$ ) — the number of test cases in the input. Next, $t$ test cases are given, one per line.
Each test case is two positive integers $n$ ( $2 \le n \le 10^9$ ) and $k$ ( $1 \le k \le 10^9$ ).
Each test case is two positive integers $n$ ( $2 \le n \le 10^9$ ) and $k$ ( $1 \le k \le 10^9$ ).
输出格式
For each test case print the $k$ -th positive integer that is not divisible by $n$ .
输入输出样例
输入 #1
6 3 7 4 12 2 1000000000 7 97 1000000000 1000000000 2 1
输出 #1
10 15 1999999999 113 1000000001 1