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13333. Q-인덱스 - Useful Blog

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13333. Q-인덱스

written by Useful·BOJ 13333


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

>

docs

;

for

(

int

i

=

0

;

i

<

N

;

i

++

)

{

int

input

;

cin

>>

input

;

docs

.

push_back

(

input

)

;

}

sort

(

docs

.

begin

(

)

,

docs

.

end

(

)

)

;

for

(

int

i

=

0

;

i

<=

N

;

i

++

)

{

int

tmp

=

docs

.

end

(

)

-

lower_bound

(

docs

.

begin

(

)

,

docs

.

end

(

)

,

i

)

;

if

(

tmp

>=

i

&&

docs

[

N

-

i

-

1

]

<=

i

)

{

cout

<<

i

<<

"\n"

;

}

}

return

0

;

}