Backing up

HW10/MakePermutationMatrix.cpp

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+//
+// Created by Brady Bodily on 3/28/20.
+//
+
+#include "MakePermutationMatrix.h"
+
+std::vector<std::vector<City>> MakePermutationMatrix::MakePermutation(std::vector<City> source, int rank, int size)
+{
+    std::vector<std::vector<City>> permutations;
+    std::sort(source.begin(), source.end());
+    std::vector<City> myPerm = source;
+    std::vector<City> nextPerm = source;
+    auto offset = myPerm.size()/size;
+
+    if(!rank)
+        std::rotate(nextPerm.begin(), nextPerm.begin()+offset*(rank+1), nextPerm.end());
+    else
+        nextPerm = source;
+
+    if(!rank)
+        std::rotate(myPerm.begin(), myPerm.begin()+offset*rank,myPerm.end());
+
+    do {
+        std::vector<City> currentPerm;
+        for (int i = 0; i < myPerm.size(); i++) {
+            currentPerm.push_back(myPerm[i]);
+        }
+        permutations.push_back(currentPerm);
+    } while (std::next_permutation(myPerm.begin(), myPerm.end()), myPerm != nextPerm);
+    return permutations;
+}