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2491. 수열 - Useful Blog

#BOJ#C++

2491. 수열

written by Useful·BOJ 2491


c
#include <bits/stdc++.h>

using namespace std;

int main() {
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(false);

    int N;
    cin

>>

N

;

vector

<

int

>

arr

;

for

(

int

i

=

0

;

i

<

N

;

i

++

)

{

int

input

;

cin

>>

input

;

arr

.

push_back

(

input

)

;

}

int

ans

=

1

;

int

lenAsc

=

1

;

int

lenDsc

=

1

;

for

(

int

i

=

1

;

i

<

N

;

i

++

)

{

if

(

arr

[

i

]

>=

arr

[

i

-

1

]

)

{

lenAsc

++

;

}

else

{

lenAsc

=

1

;

}

if

(

arr

[

i

]

<=

arr

[

i

-

1

]

)

{

lenDsc

++

;

}

else

{

lenDsc

=

1

;

}

ans

=

max

(

max

(

lenAsc

,

lenDsc

)

,

ans

)

;

}

cout

<<

ans

<<

"\n"

;

return

0

;

}