#include <bits/stdc++.h>
using namespace std; //10^14 (0 ... limit - 1)
const long long limit = 299'771'058'255'060;
const int chars = 772; //2^10 - (10 choose 5)
const int totalPos = 6; //other 4 rows are control ones
long long binom(int top, int bot) {
long long res = 1;
long long div = 1;
for(int i=1; i<=bot; i++) {
res *= (top-i+1);
div *= i;
}
return res/div;
}
//encoder
vector<int> encodeLookup() { //mangled values in order
vector<vector<int>> translate(11);
for(int i=0; i<(1<<10); i++)
translate[__popcount(i)].push_back(i);
vector<int> result;
for(int i=0; i<=10; i++) {
if(i == 5) //rowSum of 5 is used by control rows
continue;
for(auto a : translate[i])
result.push_back(a);
}
return result;
}
vector<int> mangle(long long val) {
vector<int> values(6);
int iter = 0;
for(int pos=0; pos<6; pos++) {
while(val >= binom(chars + totalPos - 2 - iter - pos, totalPos - 1 - pos)) {
val -= binom(chars + totalPos - 2 - iter - pos, totalPos - 1 - pos);
iter++;
}
values[pos] = iter;
}
return values;
}
void writeMask(int mask) {
for(int bit=9; bit>=0; bit--)
cout << ((mask>>bit) & 1);
cout << "\n";
}
void encoder() {
vector<int> lookup = encodeLookup();
long long n, t;
cin >> n >> t;
while(t--) {
long long val;
cin >> val;
val %= limit; //avoid issues on values to big
//encode the matrix
vector<int> values = mangle(val);
//cout the matrix
writeMask(0b0010101101);
writeMask(0b0101100101);
writeMask(0b0011100011);
writeMask(0b0000011111);
for(auto a : values)
writeMask(lookup[a]);
cout.flush();
}
}
//decoder
unordered_map<int, int> decodeLookup() { //{mangledValueMask, index}
vector<int> reverse = encodeLookup();
unordered_map<int, int> result;
for(int i=0; i<reverse.size(); i++)
result[reverse[i]] = i;
return result;
}
void swapCols(vector<vector<int>> &matrix, int a, int b) {
for(int i=0; i<10; i++)
swap(matrix[i][a], matrix[i][b]);
}
void preSortRows(vector<vector<int>> &matrix) {
vector<int> rowSums(10, 0);
for(int row=0; row<10; row++)
for(int col=0; col<10; col++)
rowSums[row] += matrix[row][col];
for(int cur=0; cur<4; cur++) { //separate coding rows
for(int next=cur; next<10; next++) {
if(rowSums[next] == 5) {
swap(rowSums[cur], rowSums[next]);
swap(matrix[cur], matrix[next]);
}
}
}
}
void sortCodingRows(vector<vector<int>> &matrix) {
set<int> ones;
set<int> threes;
for(int j=0; j<10; j++) {
int sum = matrix[0][j] + matrix[1][j] + matrix[2][j] + matrix[3][j];
if(sum == 1) {
for(int i=0; i<4; i++)
if(matrix[i][j] == 1)
ones.insert(i);
}
else if(sum == 3) {
for(int i=0; i<4; i++)
if(matrix[i][j] == 0)
threes.insert(i);
}
}
int none, one, three, both;
for(auto a : threes) {
if(ones.count(a) == 1)
both = a;
else
three = a;
}
for(auto a : ones)
if(both != a)
one = a;
none = 6 - one - three - both;
vector<int> back(4); //currentPosition -> targetPosition
back[none] = 0;
back[one] = 1;
back[three] = 2;
back[both] = 3;
for(int cur=0; cur<3; cur++) {
int pos = cur;
int smallest = back[pos];
for(int next=cur; next<4; next++) {
if(back[next] < smallest) {
smallest = back[next];
pos = next;
}
}
swap(matrix[cur], matrix[pos]);
swap(back[cur], back[pos]);
}
}
void sortCols(vector<vector<int>> &matrix) {
vector<int> codingValues(10, 0);
for(int j=0; j<10; j++)
for(int i=0; i<4; i++)
codingValues[j] |= ((matrix[i][j] & 1) << i);
for(int cur=0; cur<9; cur++) {
int pos = cur;
int smallest = codingValues[pos];
for(int next=cur; next<10; next++) {
if(codingValues[next] < smallest) {
smallest = codingValues[next];
pos = next;
}
}
swap(codingValues[cur], codingValues[pos]);
swapCols(matrix, cur, pos);
}
}
void unscrambleMatrix(vector<vector<int>> &matrix) {
preSortRows(matrix);
sortCodingRows(matrix);
sortCols(matrix);
}
int getMask(vector<vector<int>> &matrix, int row) {
int mask = 0;
for(auto a : matrix[row])
mask = (mask<<1) | (a&1);
return mask;
}
long long unmangle(vector<int> &values) {
sort(values.begin(), values.end());
long long result = 0;
int iter = 0;
for(int pos=0; pos<6; pos++) {
while(iter < values[pos]) {
result += binom(chars + totalPos - 2 - iter - pos, totalPos - 1 - pos);
iter++;
}
}
return result;
}
void decoder() {
unordered_map<int, int> lookup = decodeLookup();
long long n, t;
cin >> n >> t;
while(t--) {
//input the matrix
vector<vector<int>> matrix(10, vector<int>(10));
for(int i=0; i<10; i++) {
string row;
cin >> row;
for(int j=0; j<10; j++)
matrix[i][j] = row[j]&1;
}
//decode the matrix
unscrambleMatrix(matrix);
vector<int> values(6);
for(int i=0; i<6; i++)
values[i] = lookup[getMask(matrix, 4+i)];
cout << unmangle(values) << "\n";
cout.flush();
}
}
//main
int main() {
ios_base::sync_with_stdio(false);
// cin.tie(nullptr);
// cout.tie(nullptr);
string s;
cin >> s;
if(s[0] == 'A') //Algosia - encoder
encoder();
else //Bajtek - decoder
decoder();
return 0;
}
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 | #include <bits/stdc++.h> using namespace std; //10^14 (0 ... limit - 1) const long long limit = 299'771'058'255'060; const int chars = 772; //2^10 - (10 choose 5) const int totalPos = 6; //other 4 rows are control ones long long binom(int top, int bot) { long long res = 1; long long div = 1; for(int i=1; i<=bot; i++) { res *= (top-i+1); div *= i; } return res/div; } //encoder vector<int> encodeLookup() { //mangled values in order vector<vector<int>> translate(11); for(int i=0; i<(1<<10); i++) translate[__popcount(i)].push_back(i); vector<int> result; for(int i=0; i<=10; i++) { if(i == 5) //rowSum of 5 is used by control rows continue; for(auto a : translate[i]) result.push_back(a); } return result; } vector<int> mangle(long long val) { vector<int> values(6); int iter = 0; for(int pos=0; pos<6; pos++) { while(val >= binom(chars + totalPos - 2 - iter - pos, totalPos - 1 - pos)) { val -= binom(chars + totalPos - 2 - iter - pos, totalPos - 1 - pos); iter++; } values[pos] = iter; } return values; } void writeMask(int mask) { for(int bit=9; bit>=0; bit--) cout << ((mask>>bit) & 1); cout << "\n"; } void encoder() { vector<int> lookup = encodeLookup(); long long n, t; cin >> n >> t; while(t--) { long long val; cin >> val; val %= limit; //avoid issues on values to big //encode the matrix vector<int> values = mangle(val); //cout the matrix writeMask(0b0010101101); writeMask(0b0101100101); writeMask(0b0011100011); writeMask(0b0000011111); for(auto a : values) writeMask(lookup[a]); cout.flush(); } } //decoder unordered_map<int, int> decodeLookup() { //{mangledValueMask, index} vector<int> reverse = encodeLookup(); unordered_map<int, int> result; for(int i=0; i<reverse.size(); i++) result[reverse[i]] = i; return result; } void swapCols(vector<vector<int>> &matrix, int a, int b) { for(int i=0; i<10; i++) swap(matrix[i][a], matrix[i][b]); } void preSortRows(vector<vector<int>> &matrix) { vector<int> rowSums(10, 0); for(int row=0; row<10; row++) for(int col=0; col<10; col++) rowSums[row] += matrix[row][col]; for(int cur=0; cur<4; cur++) { //separate coding rows for(int next=cur; next<10; next++) { if(rowSums[next] == 5) { swap(rowSums[cur], rowSums[next]); swap(matrix[cur], matrix[next]); } } } } void sortCodingRows(vector<vector<int>> &matrix) { set<int> ones; set<int> threes; for(int j=0; j<10; j++) { int sum = matrix[0][j] + matrix[1][j] + matrix[2][j] + matrix[3][j]; if(sum == 1) { for(int i=0; i<4; i++) if(matrix[i][j] == 1) ones.insert(i); } else if(sum == 3) { for(int i=0; i<4; i++) if(matrix[i][j] == 0) threes.insert(i); } } int none, one, three, both; for(auto a : threes) { if(ones.count(a) == 1) both = a; else three = a; } for(auto a : ones) if(both != a) one = a; none = 6 - one - three - both; vector<int> back(4); //currentPosition -> targetPosition back[none] = 0; back[one] = 1; back[three] = 2; back[both] = 3; for(int cur=0; cur<3; cur++) { int pos = cur; int smallest = back[pos]; for(int next=cur; next<4; next++) { if(back[next] < smallest) { smallest = back[next]; pos = next; } } swap(matrix[cur], matrix[pos]); swap(back[cur], back[pos]); } } void sortCols(vector<vector<int>> &matrix) { vector<int> codingValues(10, 0); for(int j=0; j<10; j++) for(int i=0; i<4; i++) codingValues[j] |= ((matrix[i][j] & 1) << i); for(int cur=0; cur<9; cur++) { int pos = cur; int smallest = codingValues[pos]; for(int next=cur; next<10; next++) { if(codingValues[next] < smallest) { smallest = codingValues[next]; pos = next; } } swap(codingValues[cur], codingValues[pos]); swapCols(matrix, cur, pos); } } void unscrambleMatrix(vector<vector<int>> &matrix) { preSortRows(matrix); sortCodingRows(matrix); sortCols(matrix); } int getMask(vector<vector<int>> &matrix, int row) { int mask = 0; for(auto a : matrix[row]) mask = (mask<<1) | (a&1); return mask; } long long unmangle(vector<int> &values) { sort(values.begin(), values.end()); long long result = 0; int iter = 0; for(int pos=0; pos<6; pos++) { while(iter < values[pos]) { result += binom(chars + totalPos - 2 - iter - pos, totalPos - 1 - pos); iter++; } } return result; } void decoder() { unordered_map<int, int> lookup = decodeLookup(); long long n, t; cin >> n >> t; while(t--) { //input the matrix vector<vector<int>> matrix(10, vector<int>(10)); for(int i=0; i<10; i++) { string row; cin >> row; for(int j=0; j<10; j++) matrix[i][j] = row[j]&1; } //decode the matrix unscrambleMatrix(matrix); vector<int> values(6); for(int i=0; i<6; i++) values[i] = lookup[getMask(matrix, 4+i)]; cout << unmangle(values) << "\n"; cout.flush(); } } //main int main() { ios_base::sync_with_stdio(false); // cin.tie(nullptr); // cout.tie(nullptr); string s; cin >> s; if(s[0] == 'A') //Algosia - encoder encoder(); else //Bajtek - decoder decoder(); return 0; } |
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