knightnemo commited on
Commit
89e1473
·
verified ·
1 Parent(s): 30b6e8b

Upload code_segments/segment_228.txt with huggingface_hub

Browse files
Files changed (1) hide show
  1. code_segments/segment_228.txt +31 -0
code_segments/segment_228.txt ADDED
@@ -0,0 +1,31 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ This is the easy version of the problem. In this version, $n=m$ and the time limit is lower. You can make hacks only if both versions of the problem are solved.
2
+
3
+ In the court of the Blue King, Lelle and Flamm are having a performance match. The match consists of several rounds. In each round, either Lelle or Flamm wins.
4
+
5
+ Let $W_L$ and $W_F$ denote the number of wins of Lelle and Flamm, respectively. The Blue King considers a match to be successful if and only if:
6
+
7
+ * after every round, $\gcd(W_L,W_F)\le 1$; * at the end of the match, $W_L\le n, W_F\le m$.
8
+
9
+ Note that $\gcd(0,x)=\gcd(x,0)=x$ for every non-negative integer $x$.
10
+
11
+ Lelle and Flamm can decide to stop the match whenever they want, and the final score of the performance is $l \cdot W_L + f \cdot W_F$.
12
+
13
+ Please help Lelle and Flamm coordinate their wins and losses such that the performance is successful, and the total score of the performance is maximized.
14
+
15
+ The first line contains an integer $t$ ($1\leq t \leq 10^3$) — the number of test cases.
16
+
17
+ The only line of each test case contains four integers $n$, $m$, $l$, $f$ ($2\leq n\leq m \leq 2\cdot 10^7$, $1\leq l,f \leq 10^9$, $\bf{n=m}$): $n$, $m$ gives the upper bound on the number of Lelle and Flamm's wins, $l$ and $f$ determine the final score of the performance.
18
+
19
+ Unusual additional constraint: it is guaranteed that, for each test, there are no pairs of test cases with the same pair of $n$, $m$.
20
+
21
+ For each test case, output a single integer — the maximum total score of a successful performance.
22
+
23
+ In the first test case, a possible performance is as follows:
24
+
25
+ * Flamm wins, $\gcd(0,1)=1$. * Lelle wins, $\gcd(1,1)=1$. * Flamm wins, $\gcd(1,2)=1$. * Flamm wins, $\gcd(1,3)=1$. * Lelle wins, $\gcd(2,3)=1$. * Lelle and Flamm agree to stop the match.
26
+
27
+ The final score is $2\cdot2+3\cdot5=19$.
28
+
29
+ In the third test case, a possible performance is as follows:
30
+
31
+ * Flamm wins, $\gcd(0,1)=1$. * Lelle wins, $\gcd(1,1)=1$. * Lelle wins, $\gcd(2,1)=1$. * Lelle wins, $\gcd(3,1)=1$. * Lell