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5349. Duplicate SSN - Useful Blog

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5349. Duplicate SSN

written by Useful·BOJ 5349


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

using namespace std;

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

    map<string, int>

SSN

;

vector

<

string

>

ans

;

while

(

true

)

{

string S

;

cin

>>

S

;

if

(

S

==

"000-00-0000"

)

{

break

;

}

if

(

SSN

[

S

]

==

1

)

{

ans

.

push_back

(

S

)

;

}

SSN

[

S

]

++

;

}

sort

(

ans

.

begin

(

)

,

ans

.

end

(

)

)

;

for

(

int

i

=

0

;

i

<

ans

.

size

(

)

;

i

++

)

{

cout

<<

ans

[

i

]

<<

"\n"

;

}

return

0

;

}