Implement usort_enter_scope Hint

pkg/hints/hint_processor.go

@@ -69,6 +69,8 @@ func (p *CairoVmHintProcessor) ExecuteHint(vm *vm.VirtualMachine, hintData *any,
 		return memcpy_enter_scope(data.Ids, vm, execScopes)
 	case VM_ENTER_SCOPE:
 		return vm_enter_scope(execScopes)
+	case USORT_ENTER_SCOPE:
+		return usort_enter_scope(execScopes)
 	default:
 		return errors.Errorf("Unknown Hint: %s", data.Code)
 	}

pkg/hints/usort_hints.go

@@ -1 +1,28 @@
 package hints
+
+import (
+	"github.com/lambdaclass/cairo-vm.go/pkg/lambdaworks"
+	"github.com/lambdaclass/cairo-vm.go/pkg/types"
+)
+
+// Implements hint:
+// %{ vm_enter_scope(dict(__usort_max_size = globals().get('__usort_max_size'))) %}
+func usort_enter_scope(executionScopes *types.ExecutionScopes) error {
+	usort_max_size, err := executionScopes.Get("usort_max_size")
+
+	usort_max_size_felt := usort_max_size.(lambdaworks.Felt)
+
+	if err != nil {
+		return err
+	}
+
+	if usort_max_size == nil {
+		executionScopes.EnterScope(make(map[string]interface{}))
+	}
+
+	scope := make(map[string]interface{})
+	scope["usort_max_size"] = usort_max_size_felt
+	executionScopes.EnterScope(scope)
+
+	return nil
+}