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Java/usacotools.java at 1.3 · javaarchive/Java · GitHub
This repository was archived by the owner on Feb 29, 2024. It is now read-only.
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import
java
.
util
.*;
import
java
.
io
.*;
public
abstract
class
usacotools
{
public
static
final
String
ANSI_RESET
=
"
\u001B
[0m"
;
public
static
final
String
ANSI_BLACK
=
"
\u001B
[30m"
;
public
static
final
String
ANSI_RED
=
"
\u001B
[31m"
;
public
static
final
String
ANSI_GREEN
=
"
\u001B
[32m"
;
public
static
final
String
ANSI_YELLOW
=
"
\u001B
[33m"
;
public
static
final
String
ANSI_BLUE
=
"
\u001B
[34m"
;
public
static
final
String
ANSI_PURPLE
=
"
\u001B
[35m"
;
public
static
final
String
ANSI_CYAN
=
"
\u001B
[36m"
;
public
static
final
String
ANSI_WHITE
=
"
\u001B
[37m"
;
public
static
int
ERRORS
=
0
;
public
static
ArrayList
<
Exception
>
console
=
new
ArrayList
<
Exception
>();
public
static
String
error
=
"Error"
;
public
static
int
debugcode
=-
1
;
public
static
boolean
DEBUG
=
false
;
public
static
boolean
isrect
(
int
[][]
map
,
int
x
,
int
y
) {
int
cachedsize
=-
1
;
int
cachey
=-
1
;
for
(
int
i
=
x
;
i
<
map
.
length
;
i
++) {
if
(
x
>
cachedsize
) {
return
false
;
}
for
(
int
j
=
y
;
j
<
map
.
length
;
j
++) {
if
(
map
[
x
][
y
]==
0
) {
cachey
=
y
;
cachedsize
=
x
;
}
if
(
y
>
cachey
) {
return
false
;
}
}
}
return
true
;
}
public
static
Set
<
String
>
sclones
(
Set
<
String
>
k
) {
return
(
new
HashSet
<
String
>(
k
));
}
public
static
Set
<
Integer
>
sclone
(
Set
<
Integer
>
k
) {
return
(
new
HashSet
<
Integer
>(
k
));
}
public
static
Set
<
Long
>
sclonel
(
Set
<
Long
>
k
) {
return
(
new
HashSet
<
Long
>(
k
));
}
public
static
boolean
smartequals
(
int
[]
a
,
int
[]
b
) {
if
(
a
.
length
!=
b
.
length
) {
return
false
;
}
for
(
int
i
=
0
;
i
<
a
.
length
;
i
++) {
if
(
a
[
i
]!=
b
[
i
]) {
return
false
;
}
}
return
true
;
}
public
static
boolean
smartequals2D
(
int
[][]
a
,
int
[][]
b
) {
if
(
a
.
length
!=
b
.
length
) {
return
false
;
}
for
(
int
i
=
0
;
i
<
a
.
length
;
i
++) {
if
(
smartequals
(
a
[
i
],
b
[
i
])) {
return
false
;
}
}
return
true
;
}
public
static
void
report
(
Exception
e
) {
console
.
add
(
e
);
ERRORS
++;
}
public
static
ArrayList
<
Integer
>
touching
(
int
[][]
map
,
int
x
,
int
y
){
ArrayList
<
Integer
>
out
=
new
ArrayList
<
Integer
>();
try
{
out
.
add
(
map
[
x
-
1
][
y
]);
}
catch
(
Exception
e
) {
}
try
{
out
.
add
(
map
[
x
+
1
][
y
]);
}
catch
(
Exception
e
) {
}
try
{
out
.
add
(
map
[
x
][
y
-
1
]);
}
catch
(
Exception
e
) {
}
try
{
out
.
add
(
map
[
x
][
y
+
1
]);
}
catch
(
Exception
e
) {
}
return
out
;
}
public
static
String
repeat
(
int
count
,
String
with
) {
return
new
String
(
new
char
[
count
]).
replace
(
"
\0
"
,
with
);
}
public
static
String
changen
(
int
position
,
char
ch
,
String
str
){
char
[]
charArray
=
str
.
toCharArray
();
charArray
[
position
] =
ch
;
return
new
String
(
charArray
);
}
public
static
BufferedReader
mreader
(
String
filen
)
throws
IOException
{
return
new
BufferedReader
(
new
FileReader
(
filen
));
}
public
static
PrintWriter
mwriter
(
String
filen
)
throws
IOException
{
return
new
PrintWriter
(
new
BufferedWriter
(
new
FileWriter
(
filen
)));
}
public
static
Scanner
getsysscan
() {
return
new
Scanner
(
System
.
in
);
}
public
static
int
binarySearch
(
int
arr
[],
int
l
,
int
r
,
int
x
)
{
/*
* Binary Search
*
*/
if
(
r
>=
l
)
{
int
mid
=
l
+ (
r
-
l
)/
2
;
if
(
arr
[
mid
] ==
x
)
return
mid
;
if
(
arr
[
mid
] >
x
)
return
binarySearch
(
arr
,
l
,
mid
-
1
,
x
);
return
binarySearch
(
arr
,
mid
+
1
,
r
,
x
);
}
return
-
1
;
}
public
static
int
[][]
copy2D
(
int
[][]
a
){
int
[][]
b
=
new
int
[
a
.
length
][];
for
(
int
i
=
0
;
i
<
a
.
length
;
i
++) {
b
[
i
]=
new
int
[
a
[
i
].
length
];
for
(
int
j
=
0
;
j
<
a
[
i
].
length
;
j
++) {
b
[
i
][
j
]=
a
[
i
][
j
];
}
}
return
b
;
}
public
static
int
[]
copyarr
(
int
[]
a
) {
int
[]
b
=
new
int
[
a
.
length
];
for
(
int
i
=
0
;
i
<
a
.
length
;
i
++) {
b
[
i
]=
a
[
i
];
}
return
b
;
}
public
static
int
ebs
(
int
arr
[],
int
l
,
int
r
,
int
x
) {
Arrays
.
sort
(
arr
);
return
binarySearch
(
arr
,
l
,
r
,
x
);
}
public
static
int
lsearch
(
int
[]
a
,
int
b
) {
for
(
int
i
=
0
;
i
<
a
.
length
;
i
++) {
if
(
a
[
i
]==
b
) {
return
i
;
}
}
return
-
1
;
}
public
static
void
print
(
String
out
) {
System
.
out
.
print
(
out
+
"
\n
"
);
}
public
static
void
printf
(
String
out
) {
System
.
out
.
print
(
out
+
"
\n
"
);
}
public
static
void
print
(
String
out
,
String
end
) {
System
.
out
.
print
(
out
+
end
);
}
public
static
void
print
(
String
out
,
boolean
flush
) {
System
.
out
.
print
(
out
+
"
\n
"
);
if
(
flush
) {
System
.
out
.
flush
();
}
}
public
static
int
[]
toArray
(
ArrayList
<
Integer
>
arr
) {
int
[]
stuff
=
new
int
[
arr
.
size
()];
for
(
int
i
=
0
;
i
<
arr
.
size
();
i
++) {
stuff
[
i
]=
arr
.
get
(
i
);
}
return
stuff
;
}
public
static
String
[]
toArrays
(
ArrayList
<
String
>
arr
) {
String
[]
stuff
=
new
String
[
arr
.
size
()];
for
(
int
i
=
0
;
i
<
arr
.
size
();
i
++) {
stuff
[
i
]=
arr
.
get
(
i
);
}
return
stuff
;
}
public
static
void
exit
() {
System
.
exit
(
1
);
}
public
static
void
exit
(
int
code
) {
System
.
exit
(
code
);
}
public
static
long
benchmark
() {
return
System
.
currentTimeMillis
();
}
public
static
long
benchmark2
() {
return
System
.
nanoTime
();
}
public
static
void
clear
(){
//Clears Screen in java
try
{
if
(
System
.
getProperty
(
"os.name"
).
contains
(
"Windows"
))
new
ProcessBuilder
(
"cmd"
,
"/c"
,
"cls"
).
inheritIO
().
start
().
waitFor
();
else
Runtime
.
getRuntime
().
exec
(
"clear"
);
}
catch
(
Exception
e
) {
report
(
e
);}
}
public
static
void
console
() {
System
.
out
.
println
(
"Total Errors: "
+
ERRORS
);
for
(
Exception
a
:
console
) {
if
(
ESTACK
) {
print
(
a
.
getStackTrace
().
toString
());
}
if
(
EMSG
){
print
(
a
.
toString
());
print
(
a
.
getMessage
());
print
(
a
.
getLocalizedMessage
());}
}
}
public
static
void
run
(
String
exe
){
try
{
Process
process
=
Runtime
.
getRuntime
().
exec
(
exe
);}
catch
(
Exception
e
) {
report
(
e
);
}
}
public
static
boolean
ESTACK
=
true
;
public
static
boolean
EMSG
=
true
;
public
static
int
[]
reverse
(
int
[]
a
) {
int
temp
;
for
(
int
i
=
0
;
i
<
a
.
length
/
2
;
i
++)
{
temp
=
a
[
i
];
a
[
i
] =
a
[
a
.
length
-
i
-
1
];
a
[
a
.
length
-
i
-
1
] =
temp
;
}
return
a
;
}
public
static
int
[][]
reversev
(
int
[][]
a
) {
/*
* Reverse 2D array
*/
int
[]
temp
;
for
(
int
i
=
0
;
i
<
a
.
length
/
2
;
i
++)
{
temp
=
a
[
i
];
a
[
i
] =
a
[
a
.
length
-
i
-
1
];
a
[
a
.
length
-
i
-
1
] =
temp
;
}
return
a
;
}
public
static
int
[][]
reverseh
(
int
[][]
a
) {
/*
* Reverse 2D array
*/
int
[][]
newa
=
new
int
[
a
.
length
][
a
[
0
].
length
];
for
(
int
i
=
0
;
i
<
a
.
length
;
i
++) {
newa
[
i
]=
reverse
(
a
[
i
]);
}
return
newa
;
}
public
static
int
[][]
rotate90cw
(
int
[][]
map
) {
/*
* Rotate 2D array
* 90 degree clockwise
*/
int
N
=
map
.
length
;
int
[][]
n
=
new
int
[
map
[
0
].
length
][
N
];
for
(
int
i
=
0
;
i
<
N
;
i
++) {
for
(
int
j
=
0
;
j
<
N
;
j
++) {
n
[
j
][
N
-
1
-
i
]=
map
[
i
][
j
];
}
}
return
n
;
}
public
static
int
[][]
morph
(
int
[][]
map
,
int
a
,
int
b
){
for
(
int
i
=
0
;
i
<
map
.
length
;
i
++) {
for
(
int
j
=
0
;
j
<
map
[
i
].
length
;
j
++) {
if
(
map
[
i
][
j
]==
a
) {
map
[
i
][
j
]=
b
;
}
}
}
return
map
;
}
public
static
int
classify
(
char
x
,
char
off
,
char
on
) {
/*
* Method to classify X is off value or on value
* Returns -1 if neither
*
*/
if
(
x
==
off
){
return
0
;
}
else
if
(
x
==
on
) {
return
1
;
}
else
{
return
-
1
;
}
}
public
static
long
slowfib
(
long
num
){
if
(
num
<=
1
) {
return
num
;
}
return
slowfib
(
num
-
1
)+
slowfib
(
num
-
2
);
}
public
static
ArrayList
<
Long
>
fibmem
=
new
ArrayList
<
Long
>();
public
static
long
ffib
(
long
n
){
if
(
n
<=
1
) {
return
n
;
}
if
(
fibmem
.
size
()>
n
) {
return
fibmem
.
get
((
int
)
n
-
1
)+
fibmem
.
get
((
int
)
n
-
2
);
}
else
{
fibmem
.
add
(
ffib
(
n
-
1
)+
ffib
(
n
-
2
));
return
fibmem
.
get
((
int
)
n
);
}
}
public
static
void
print
() {
System
.
out
.
println
();
}
public
static
void
setupfib
() {
fibmem
.
add
((
long
)
0
);
fibmem
.
add
((
long
)
1
);
fibmem
.
add
((
long
)
1
);
fibmem
.
add
((
long
)
2
);
}
public
static
void
show2Darr
(
int
[][]
a
) {
for
(
int
[]
b
:
a
) {
for
(
int
c
:
b
) {
print
(
c
+
" "
,
""
);
}
print
();
}
}
public
static
void
showarr
(
int
[]
a
) {
for
(
int
x
:
a
) {
print
(
x
+
" "
);}
}
public
static
int
[][]
dpcache
;
public
static
int
ks
(
int
W
,
int
[]
wt
,
int
[]
val
,
int
n
) {
int
result
;
if
(
dpcache
[
n
][
W
]!=
0
) {
return
dpcache
[
n
][
W
];}
if
(
n
==
0
||
W
==
0
) {
result
=
0
;
}
else
if
(
wt
[
n
-
1
]>
W
) {
result
=
ks
(
W
,
wt
,
val
,
n
-
1
);
}
else
{
result
=
Math
.
max
(
val
[
n
-
1
]+
ks
(
W
-
wt
[
n
-
1
],
wt
,
val
,
n
-
1
),
ks
(
W
,
wt
,
val
,
n
-
1
));
}
dpcache
[
n
][
W
]=
result
;
return
result
;
}
public
static
void
kssetup
(
int
n
,
int
W
) {
dpcache
=
new
int
[
n
+
1
][
W
+
1
];
}
public
static
void
main
(
String
[]
args
)
throws
Exception
{
/*
* Short demo of stuff
* Making an error would also demo error reporting
*
*
*/
System
.
out
.
println
(
"Running demo"
);
Scanner
sc
=
getsysscan
();
print
(
"Welcome to the demo"
);
print
(
">"
,
""
);
int
val
;
/*
int[][] testarray= {
{1,1,2,7,7,1,1,1},
{1,1,4,0,7,1,2,2},
{0,3,6,9,1,0,0,0},
{0,3,0,1,0,0,0,0},
{0,3,0,0,0,0,0,0},
{1,1,5,1,3,1,1,1},
{1,1,1,1,3,1,1,1},
};
*/
int
[][]
testarray
= {
{
1
,
2
,
3
,
1
},
{
4
,
5
,
6
,
2
},
{
7
,
8
,
9
,
3
},
{
10
,
69
,
1
,
4
}
};
print
(
"Roation of 90 degrees
\n
Before
\n
"
);
show2Darr
(
testarray
);
print
(
"After
\n
"
);
show2Darr
(
rotate90cw
(
testarray
));
print
(
"BEFORE:"
);
int
[][]
ii
= {
{
1
,
1
,
2
,
3
},
{
1
,
0
,
2
,
1
},
{
1
,
1
,
1
,
1
},
{
1
,
2
,
3
,
4
}
};
show2Darr
(
ii
);
print
(
"After H reflect:"
);
show2Darr
(
reverseh
(
ii
));
try
{
val
=
sc
.
nextInt
();
}
catch
(
Exception
e
) {
print
(
"Oops that did not go well please rerun and choose a INTEGER"
);
val
=-
1
;
report
(
e
);
print
(
"How about we test error reporting"
);
console
();
}
if
(
1
==
val
) {
}
}
}
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