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1417. 국회의원 선거 - Useful Blog

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1417. 국회의원 선거

written by Useful·BOJ 1417


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

>

vote

;

for

(

int

i

=

0

;

i

<

N

;

i

++

)

{

int

input

;

cin

>>

input

;

vote

.

push_back

(

input

)

;

}

int

ans

=

0

;

while

(

true

)

{

int

max_idx

=

0

;

int

max_val

=

0

;

for

(

int

i

=

1

;

i

<

N

;

i

++

)

{

if

(

vote

[

i

]

>

max_val

)

{

max_idx

=

i

;

max_val

=

vote

[

i

]

;

}

}

if

(

max_val

<

vote

[

0

]

)

{

break

;

}

ans

++

;

vote

[

0

]

++

;

vote

[

max_idx

]

--

;

}

cout

<<

ans

<<

"\n"

;

return

0

;

}