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8821.cpp
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45 lines (42 loc) · 761 Bytes
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// 8821. 적고 지우기
// 2019.12.11
#include<iostream>
#include<string>
using namespace std;
int arr[10];
int main()
{
int test_case;
int T;
cin>>T;
for(test_case = 1; test_case <= T; ++test_case)
{
for(int i=0;i<10;i++)
{
arr[i]=0;
}
string s;
cin>>s;
int ans = 0;
for(int i=0;i<s.size();i++)
{
if(arr[s[i]-'0']==1)
{
arr[s[i]-'0']=0;
}
else if(arr[s[i]-'0']==0)
{
arr[s[i]-'0']=1;
}
}
for(int i=0;i<10;i++)
{
if(arr[i]==1)
{
ans++;
}
}
cout<<"#"<<test_case<<" "<<ans<<"\n";
}
return 0;
}