generates 16-bit code

Author: rahul-797

hamming-code/generateCode.cpp

@@ -0,0 +1,77 @@
+#include <cstdlib>
+#include <ctime>
+#include <iostream>
+#include <vector>
+using namespace std;
+
+void generateCode(vector<vector<int>>& vec) {
+  int value = 0;
+  for (int i = 0; i < 4; i++) {
+    for (int j = 0; j < 4; j++) {
+      if (j & 1) {
+        value += vec[i][j];
+      }
+    }
+  }
+  vec[0][1] = (value - vec[0][1]) % 2;
+
+  value = 0;
+  for (int i = 0; i < 4; i++) {
+    for (int j = 2; j < 4; j++) {
+      value += vec[i][j];
+    }
+  }
+  vec[0][2] = (value - vec[0][2]) % 2;
+
+  value = 0;
+  for (int i = 0; i < 4; i++) {
+    for (int j = 0; j < 4; j++) {
+      if (i & 1) {
+        value += vec[i][j];
+      }
+    }
+  }
+  vec[1][0] = (value - vec[1][0]) % 2;
+
+  value = 0;
+  for (int i = 2; i < 4; i++) {
+    for (int j = 0; j < 4; j++) {
+      value += vec[i][j];
+    }
+  }
+  vec[2][0] = (value - vec[2][0]) % 2;
+
+  value = 0;
+  for (int i = 0; i < 4; i++) {
+    for (int j = 0; j < 4; j++) {
+      value += vec[i][j];
+    }
+  }
+  vec[0][0] = (value - vec[0][0]) % 2;
+}
+
+int main() {
+  srand(time(0));
+  vector<vector<int>> vec(4, vector<int>(4));
+  for (int i = 0; i < 4; i++) {
+    for (int j = 0; j < 4; j++) {
+      vec[i][j] = rand() % 2;
+    }
+  }
+
+  generateCode(vec);
+  for (auto i : vec) {
+    for (auto j : i) {
+      cout << j << " ";
+    }
+    cout << endl;
+  }
+  cout << "Generated code: ";
+  for (auto i : vec) {
+    for (auto j : i) {
+      cout << j;
+    }
+  }
+  cout << endl;
+  return 0;
+}