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Java_Learning/24_Recursion_Part2/Friends_Paring_Problem.java at main · TORRYNN/Java_Learning · GitHub
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Java_Learning
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24_Recursion_Part2
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Friends_Paring_Problem.java
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Java_Learning
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24_Recursion_Part2
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Friends_Paring_Problem.java
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public
class
Friends_Paring_Problem
{
static
int
pairingCount
(
int
n
) {
// Base Condition
if
(
n
==
1
||
n
==
2
)
return
n
;
int
nm1
=
pairingCount
(
n
-
1
);
int
nm2
= (
n
-
1
) *
pairingCount
(
n
-
2
);
int
totalways
=
nm1
+
nm2
;
return
totalways
;
}
public
static
void
main
(
String
[]
args
) {
System
.
out
.
println
(
pairingCount
(
3
));
}
}
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