20 lines
370 B
C++
20 lines
370 B
C++
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#include <iostream>
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using namespace std;
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int main()
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{
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string in;
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int counts[12] = {0};
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int result = 0;
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while(cin >> in) for(int i = 0; i < 12; i++) counts[i] = (in[i]=='1')?(counts[i]+1):(counts[i]-1);
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for(int i = 0; i < 12; i++) result |= ((counts[i]>0)?1:0)<<(11-i);
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cout << result*(result^0x0FFF) << endl;
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return 0;
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}
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