#include <iostream>
#include <cstdint>
#include <vector>
#include <algorithm>
#include <random>
using namespace std;
struct Pair
{
int16_t c, d;
};
static vector<Pair> vPairs;
static int32_t aEncoding[2][1'000'000];
static void EncodePair(int & iOut0, int & iOut1, int iIn0, int iIn1, bool fEncode)
{
iIn0--;
iIn1--;
int32_t x = aEncoding[fEncode ? 0 : 1][iIn0 * 1000 + iIn1];
iOut0 = (x / 1000) + 1;
iOut1 = (x % 1000) + 1;
}
static void InitialFill()
{
Pair pa;
vPairs.clear();
for (int i = 0; i < 1000; ++i)
{
pa.c = i;
for (int j = 0; j < 1000; ++j)
{
if (i == j)
continue;
pa.d = j;
vPairs.push_back(pa);
}
}
}
static void Shuffle()
{
shuffle(vPairs.begin(), vPairs.end(), default_random_engine(123456));
}
static inline int GetPositionOfEncoding(int a, int b)
{
for (int i = (int) vPairs.size() - 1; i >= 0; --i)
{
const Pair & pa = vPairs[i];
if (a == pa.c || a == pa.d || b == pa.c || b == pa.d)
continue;
return i;
}
return -1;
}
static inline void SaveEncoding(int a, int b, int k)
{
int iIn = a * 1000 + b;
int iOut = vPairs[k].c * 1000 + vPairs[k].d;
aEncoding[0][iIn] = iOut;
aEncoding[1][iOut] = iIn;
int iLast = ((int) vPairs.size()) - 1;
if (k != iLast)
{
vPairs[k] = vPairs[iLast];
}
vPairs.pop_back();
}
static bool PrepareEncodingTable()
{
InitialFill();
Shuffle();
for (int i = 0; i < 1000; ++i)
{
for (int j = 0; j < 1000; ++j)
{
if (i == j)
continue;
int k = GetPositionOfEncoding(i, j);
if (k == -1)
return false;
SaveEncoding(i, j, k);
}
}
return true;
}
int main()
{
string s;
int iOut0, iOut1, iIn0, iIn1;
PrepareEncodingTable();
cin >> s;
cin >> iIn0 >> iIn1;
EncodePair(iOut0, iOut1, iIn0, iIn1, s[0] == 'A');
cout << iOut0 << " " << iOut1;
cout.flush();
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | #include <iostream> #include <cstdint> #include <vector> #include <algorithm> #include <random> using namespace std; struct Pair { int16_t c, d; }; static vector<Pair> vPairs; static int32_t aEncoding[2][1'000'000]; static void EncodePair(int & iOut0, int & iOut1, int iIn0, int iIn1, bool fEncode) { iIn0--; iIn1--; int32_t x = aEncoding[fEncode ? 0 : 1][iIn0 * 1000 + iIn1]; iOut0 = (x / 1000) + 1; iOut1 = (x % 1000) + 1; } static void InitialFill() { Pair pa; vPairs.clear(); for (int i = 0; i < 1000; ++i) { pa.c = i; for (int j = 0; j < 1000; ++j) { if (i == j) continue; pa.d = j; vPairs.push_back(pa); } } } static void Shuffle() { shuffle(vPairs.begin(), vPairs.end(), default_random_engine(123456)); } static inline int GetPositionOfEncoding(int a, int b) { for (int i = (int) vPairs.size() - 1; i >= 0; --i) { const Pair & pa = vPairs[i]; if (a == pa.c || a == pa.d || b == pa.c || b == pa.d) continue; return i; } return -1; } static inline void SaveEncoding(int a, int b, int k) { int iIn = a * 1000 + b; int iOut = vPairs[k].c * 1000 + vPairs[k].d; aEncoding[0][iIn] = iOut; aEncoding[1][iOut] = iIn; int iLast = ((int) vPairs.size()) - 1; if (k != iLast) { vPairs[k] = vPairs[iLast]; } vPairs.pop_back(); } static bool PrepareEncodingTable() { InitialFill(); Shuffle(); for (int i = 0; i < 1000; ++i) { for (int j = 0; j < 1000; ++j) { if (i == j) continue; int k = GetPositionOfEncoding(i, j); if (k == -1) return false; SaveEncoding(i, j, k); } } return true; } int main() { string s; int iOut0, iOut1, iIn0, iIn1; PrepareEncodingTable(); cin >> s; cin >> iIn0 >> iIn1; EncodePair(iOut0, iOut1, iIn0, iIn1, s[0] == 'A'); cout << iOut0 << " " << iOut1; cout.flush(); } |
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