Submission #2172784
Source Code Expand
import std.stdio;
import std.string;
import std.format;
import std.conv;
import std.typecons;
import std.algorithm;
import std.functional;
import std.bigint;
import std.numeric;
import std.array;
import std.math;
import std.range;
import std.container;
import std.concurrency;
import std.traits;
import std.uni;
import core.bitop : popcnt;
alias Generator = std.concurrency.Generator;
const long INF = long.max/3;
const long MOD = 10L^^9+7;
struct P {
int i;
long h;
}
void main() {
int N;
scanln(N);
P[] ps = N.iota.map!(i => P(i, readln.chomp.to!long)).array;
int ans = 1;
auto list = DList!P();
int s=-1, t=-1, u=-1;
foreach(p; ps) {
if (list.empty) {
list.insertBack(p);
s = t = u = p.i;
} else if (p.h>list.back.h) {
list.insertBack(p);
if (u == p.i-1) {
s = p.i-1;
}
t = p.i;
ans = max(ans, t - s + 1);
} else {
while(!list.empty && p.h<list.back.h) {
list.removeBack;
}
list.insertBack(p);
u = p.i;
ans = max(ans, u - s + 1);
}
}
ans.writeln;
}
// ----------------------------------------------
void scanln(Args...)(auto ref Args args) {
import std.meta;
template getFormat(T) {
static if (isIntegral!T) {
enum getFormat = "%d";
} else static if (isFloatingPoint!T) {
enum getFormat = "%g";
} else static if (isSomeString!T || isSomeChar!T) {
enum getFormat = "%s";
} else {
static assert(false);
}
}
enum string str = [staticMap!(getFormat, Args)].join(" ") ~ "\n";
// readf!str(args);
mixin("str.readf(" ~ Args.length.iota.map!(i => "&args[%d]".format(i)).join(", ") ~ ");");
}
void times(alias fun)(int n) {
// n.iota.each!(i => fun());
foreach(i; 0..n) fun();
}
auto rep(alias fun, T = typeof(fun()))(int n) {
// return n.iota.map!(i => fun()).array;
T[] res = new T[n];
foreach(ref e; res) e = fun();
return res;
}
T ceil(T)(T x, T y) if (__traits(isIntegral, T)) {
// `(x+y-1)/y` will only work for positive numbers ...
T t = x / y;
if (t * y < x) t++;
return t;
}
T floor(T)(T x, T y) if (__traits(isIntegral, T)) {
T t = x / y;
if (t * y > x) t--;
return t;
}
// fold was added in D 2.071.0
static if (__VERSION__ < 2071) {
template fold(fun...) if (fun.length >= 1) {
auto fold(R, S...)(R r, S seed) {
static if (S.length < 2) {
return reduce!fun(seed, r);
} else {
return reduce!fun(tuple(seed), r);
}
}
}
}
// cumulativeFold was added in D 2.072.0
static if (__VERSION__ < 2072) {
template cumulativeFold(fun...)
if (fun.length >= 1)
{
import std.meta : staticMap;
private alias binfuns = staticMap!(binaryFun, fun);
auto cumulativeFold(R)(R range)
if (isInputRange!(Unqual!R))
{
return cumulativeFoldImpl(range);
}
auto cumulativeFold(R, S)(R range, S seed)
if (isInputRange!(Unqual!R))
{
static if (fun.length == 1)
return cumulativeFoldImpl(range, seed);
else
return cumulativeFoldImpl(range, seed.expand);
}
private auto cumulativeFoldImpl(R, Args...)(R range, ref Args args)
{
import std.algorithm.internal : algoFormat;
static assert(Args.length == 0 || Args.length == fun.length,
algoFormat("Seed %s does not have the correct amount of fields (should be %s)",
Args.stringof, fun.length));
static if (args.length)
alias State = staticMap!(Unqual, Args);
else
alias State = staticMap!(ReduceSeedType!(ElementType!R), binfuns);
foreach (i, f; binfuns)
{
static assert(!__traits(compiles, f(args[i], e)) || __traits(compiles,
{ args[i] = f(args[i], e); }()),
algoFormat("Incompatible function/seed/element: %s/%s/%s",
fullyQualifiedName!f, Args[i].stringof, E.stringof));
}
static struct Result
{
private:
R source;
State state;
this(R range, ref Args args)
{
source = range;
if (source.empty)
return;
foreach (i, f; binfuns)
{
static if (args.length)
state[i] = f(args[i], source.front);
else
state[i] = source.front;
}
}
public:
@property bool empty()
{
return source.empty;
}
@property auto front()
{
assert(!empty, "Attempting to fetch the front of an empty cumulativeFold.");
static if (fun.length > 1)
{
import std.typecons : tuple;
return tuple(state);
}
else
{
return state[0];
}
}
void popFront()
{
assert(!empty, "Attempting to popFront an empty cumulativeFold.");
source.popFront;
if (source.empty)
return;
foreach (i, f; binfuns)
state[i] = f(state[i], source.front);
}
static if (isForwardRange!R)
{
@property auto save()
{
auto result = this;
result.source = source.save;
return result;
}
}
static if (hasLength!R)
{
@property size_t length()
{
return source.length;
}
}
}
return Result(range, args);
}
}
}
// minElement/maxElement was added in D 2.072.0
static if (__VERSION__ < 2072) {
auto minElement(alias map, Range)(Range r)
if (isInputRange!Range && !isInfinite!Range)
{
alias mapFun = unaryFun!map;
auto element = r.front;
auto minimum = mapFun(element);
r.popFront;
foreach(a; r) {
auto b = mapFun(a);
if (b < minimum) {
element = a;
minimum = b;
}
}
return element;
}
auto maxElement(alias map, Range)(Range r)
if (isInputRange!Range && !isInfinite!Range)
{
alias mapFun = unaryFun!map;
auto element = r.front;
auto maximum = mapFun(element);
r.popFront;
foreach(a; r) {
auto b = mapFun(a);
if (b > maximum) {
element = a;
maximum = b;
}
}
return element;
}
}
Submission Info
Submission Time |
|
Task |
B - 山のデータ |
User |
arkark |
Language |
D (DMD64 v2.070.1) |
Score |
100 |
Code Size |
7711 Byte |
Status |
AC |
Exec Time |
116 ms |
Memory |
17148 KB |
Judge Result
Set Name |
Sample |
Subtask1 |
Subtask2 |
Score / Max Score |
0 / 0 |
30 / 30 |
70 / 70 |
Status |
|
|
|
Set Name |
Test Cases |
Sample |
subtask0-sample-01.txt, subtask0-sample-02.txt |
Subtask1 |
subtask0-sample-01.txt, subtask0-sample-02.txt, subtask1-01.txt, subtask1-02.txt, subtask1-03.txt, subtask1-04.txt, subtask1-05.txt, subtask1-06.txt, subtask1-07.txt, subtask1-08.txt, subtask1-09.txt, subtask1-10.txt, subtask1-11.txt, subtask1-12.txt, subtask1-13.txt, subtask1-14.txt, subtask1-15.txt |
Subtask2 |
subtask0-sample-01.txt, subtask0-sample-02.txt, subtask1-01.txt, subtask1-02.txt, subtask1-03.txt, subtask1-04.txt, subtask1-05.txt, subtask1-06.txt, subtask1-07.txt, subtask1-08.txt, subtask1-09.txt, subtask1-10.txt, subtask1-11.txt, subtask1-12.txt, subtask1-13.txt, subtask1-14.txt, subtask1-15.txt, subtask2-01.txt, subtask2-02.txt, subtask2-03.txt, subtask2-04.txt, subtask2-05.txt, subtask2-06.txt, subtask2-07.txt, subtask2-08.txt, subtask2-09.txt, subtask2-10.txt, subtask2-11.txt, subtask2-12.txt, subtask2-13.txt, subtask2-14.txt, subtask2-15.txt |
Case Name |
Status |
Exec Time |
Memory |
subtask0-sample-01.txt |
AC |
1 ms |
256 KB |
subtask0-sample-02.txt |
AC |
1 ms |
256 KB |
subtask1-01.txt |
AC |
1 ms |
256 KB |
subtask1-02.txt |
AC |
1 ms |
256 KB |
subtask1-03.txt |
AC |
1 ms |
256 KB |
subtask1-04.txt |
AC |
1 ms |
256 KB |
subtask1-05.txt |
AC |
1 ms |
256 KB |
subtask1-06.txt |
AC |
1 ms |
256 KB |
subtask1-07.txt |
AC |
1 ms |
256 KB |
subtask1-08.txt |
AC |
1 ms |
256 KB |
subtask1-09.txt |
AC |
1 ms |
256 KB |
subtask1-10.txt |
AC |
1 ms |
256 KB |
subtask1-11.txt |
AC |
1 ms |
256 KB |
subtask1-12.txt |
AC |
1 ms |
256 KB |
subtask1-13.txt |
AC |
1 ms |
256 KB |
subtask1-14.txt |
AC |
1 ms |
256 KB |
subtask1-15.txt |
AC |
1 ms |
256 KB |
subtask2-01.txt |
AC |
7 ms |
3196 KB |
subtask2-02.txt |
AC |
34 ms |
3324 KB |
subtask2-03.txt |
AC |
56 ms |
7164 KB |
subtask2-04.txt |
AC |
110 ms |
14204 KB |
subtask2-05.txt |
AC |
109 ms |
14460 KB |
subtask2-06.txt |
AC |
107 ms |
14460 KB |
subtask2-07.txt |
AC |
109 ms |
6524 KB |
subtask2-08.txt |
AC |
116 ms |
17148 KB |
subtask2-09.txt |
AC |
109 ms |
13436 KB |
subtask2-10.txt |
AC |
107 ms |
7676 KB |
subtask2-11.txt |
AC |
108 ms |
7548 KB |
subtask2-12.txt |
AC |
104 ms |
7548 KB |
subtask2-13.txt |
AC |
109 ms |
6908 KB |
subtask2-14.txt |
AC |
109 ms |
14460 KB |
subtask2-15.txt |
AC |
109 ms |
7804 KB |