fix bug in max-cut solver (issue #611)

qiskit_optimization/applications/max_cut.py

@@ -117,7 +117,7 @@ def parse_gset_format(filename: str) -> np.ndarray:
                     s__, t__, _ = v
                     s__ -= 1  # adjust 1-index
                     t__ -= 1  # ditto
-                    w[s__, t__] = t__
+                    w[s__, t__] = _
                     count += 1
             assert m == count
         w += w.T