Artifact f520f03e2411db6e8f6c5e57ffcad3a23b05adfc
#include <iostream>
#include <sstream>
#include <iomanip>
#include <vector>
#include <string>
#include <map>
#include <set>
#include <algorithm>
#include <numeric>
#include <iterator>
#include <functional>
#include <complex>
#include <queue>
#include <stack>
#include <cmath>
#include <cassert>
#include <cstring>
using namespace std;
typedef long long LL;
typedef complex<double> CMP;
class DoubleXor { public:
int calculate(int N)
{
int x = N;
for(int y=N-1; y>=1; --y)
x = dxor(x, y);
int z = 1;
for(int y=2; y<=N; ++y)
z = dxor(z, y);
if( x != z )
cerr << N << ": " << x << " -- " << z << endl;
return x;
}
int dxor(int x, int y)
{
int z = 0;
int d = 1;
while( x>0 || y>0 ) {
z += d * ((x%10 ^ y%10)%10);
x /= 10;
y /= 10;
d *= 10;
}
return z;
}
};
// BEGIN CUT HERE
#include <ctime>
double start_time; string timer()
{ ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
{ os << "{ ";
for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
void verify_case(const int& Expected, const int& Received) {
bool ok = (Expected == Received);
if(ok) cerr << "PASSED" << timer() << endl; else { cerr << "FAILED" << timer() << endl;
cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
#define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
#define END verify_case(_, DoubleXor().calculate(N));}
int main(){
for(int N=1;;++N) {
CASE(-2)
int _ = -1;
END
}
CASE(-1)
int N = 8;
int _ = 2;
END
CASE(0)
int N = 1;
int _ = 1;
END
CASE(1)
int N = 2;
int _ = 3;
END
CASE(2)
int N = 7;
int _ = 0;
END
CASE(3)
int N = 10;
int _ = 11;
END
CASE(4)
int N = 102;
int _ = 103;
END
CASE(5)
int N = 1000000;
int _ = -1;
END
CASE(6)
int N = 1;
int _ = 1;
END
CASE(6)
int N = 2;
int _ = 3;
END
CASE(6)
int N = 3;
int _ = 0;
END
CASE(6)
int N = 4;
int _ = 4;
END
CASE(6)
int N = 5;
int _ = 1;
END
CASE(6)
int N = 6;
int _ = 7;
END
CASE(6)
int N = 7;
int _ = 0;
END
CASE(6)
int N = 9;
int _ = 1;
END
}
// END CUT HERE