Useful한
IT블로그

Useful한IT블로그

Featured

Posts

2847. 게임을 만든 동준이 - Useful Blog

#BOJ#C++

2847. 게임을 만든 동준이

written by Useful·BOJ 2847


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

using namespace std;

int main(){
    cin.tie(NULL);
    cout.tie(NULL);
    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

=

0

;

for

(

int

i

=

N

-

2

;

i

>=

0

;

i

--

)

{

if

(

arr

[

i

]

>=

arr

[

i

+

1

]

)

{

ans

+=

arr

[

i

]

-

arr

[

i

+

1

]

+

1

;

arr

[

i

]

=

arr

[

i

+

1

]

-

1

;

}

}

cout

<<

ans

<<

"\n"

;

return

0

;

}