Add graph coloring assignment.

coloring/solver.py

@@ -0,0 +1,43 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+
+def solve_it(input_data):
+    # Modify this code to run your optimization algorithm
+
+    # parse the input
+    lines = input_data.split('\n')
+
+    first_line = lines[0].split()
+    node_count = int(first_line[0])
+    edge_count = int(first_line[1])
+
+    edges = []
+    for i in range(1, edge_count + 1):
+        line = lines[i]
+        parts = line.split()
+        edges.append((int(parts[0]), int(parts[1])))
+
+    # build a trivial solution
+    # every node has its own color
+    solution = range(0, node_count)
+
+    # prepare the solution in the specified output format
+    output_data = str(node_count) + ' ' + str(0) + '\n'
+    output_data += ' '.join(map(str, solution))
+
+    return output_data
+
+
+import sys
+
+if __name__ == '__main__':
+    import sys
+    if len(sys.argv) > 1:
+        file_location = sys.argv[1].strip()
+        with open(file_location, 'r') as input_data_file:
+            input_data = input_data_file.read()
+        print(solve_it(input_data))
+    else:
+        print('This test requires an input file.  Please select one from the data directory. (i.e. python solver.py ./data/gc_4_1)')
+