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20231104-KursPodstawowyALX
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Patryk Czarnik
20231104-KursPodstawowyALX
Commits
f27e98f4
Commit
f27e98f4
authored
Dec 02, 2023
by
Patryk Czarnik
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fib rekurencyjnie
parent
0942980b
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Fib1.java
src/main/java/domowe/r2/z03_funkcje/Fib1.java
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src/main/java/domowe/r2/z03_funkcje/Fib1.java
0 → 100644
View file @
f27e98f4
package
domowe
.
r2
.
z03_funkcje
;
import
java.util.Scanner
;
public
class
Fib1
{
static
long
fib
(
int
n
)
{
if
(
n
<
0
)
throw
new
IllegalArgumentException
(
"fib nie działa dla ujemnych!"
);
if
(
n
==
0
)
return
0
;
if
(
n
==
1
)
return
1
;
return
fib
(
n
-
2
)
+
fib
(
n
-
1
);
}
public
static
void
main
(
String
[]
args
)
{
Scanner
scanner
=
new
Scanner
(
System
.
in
);
while
(
true
)
{
System
.
out
.
print
(
"Podaj argument: "
);
int
n
=
scanner
.
nextInt
();
if
(
n
<
0
)
break
;
long
p
=
System
.
nanoTime
();
var
wynik
=
fib
(
n
);
long
k
=
System
.
nanoTime
();
System
.
out
.
printf
(
"F(%d) = %d\n"
,
n
,
wynik
);
System
.
out
.
printf
(
" czas: %.6f s\n"
,
(
k
-
p
)*
1
e
-
9
);
}
}
}
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