... | ... |
@@ -558,12 +558,18 @@ |
558 | 558 |
void startFirstPhase() { |
559 | 559 |
_phase = true; |
560 | 560 |
|
561 |
Node n = _level->highestActive(); |
|
562 |
int level = _level->highestActiveLevel(); |
|
563 |
while ( |
|
561 |
while (true) { |
|
564 | 562 |
int num = _node_num; |
565 | 563 |
|
566 |
|
|
564 |
Node n = INVALID; |
|
565 |
int level = -1; |
|
566 |
|
|
567 |
while (num > 0) { |
|
568 |
n = _level->highestActive(); |
|
569 |
if (n == INVALID) goto first_phase_done; |
|
570 |
level = _level->highestActiveLevel(); |
|
571 |
--num; |
|
572 |
|
|
567 | 573 |
Value excess = (*_excess)[n]; |
568 | 574 |
int new_level = _level->maxLevel(); |
569 | 575 |
|
... | ... |
@@ -629,14 +635,22 @@ |
629 | 635 |
} else { |
630 | 636 |
_level->deactivate(n); |
631 | 637 |
} |
632 |
|
|
633 |
n = _level->highestActive(); |
|
634 |
level = _level->highestActiveLevel(); |
|
635 |
--num; |
|
636 | 638 |
} |
637 | 639 |
|
638 | 640 |
num = _node_num * 20; |
639 |
while (num > 0 |
|
641 |
while (num > 0) { |
|
642 |
while (level >= 0 && _level->activeFree(level)) { |
|
643 |
--level; |
|
644 |
} |
|
645 |
if (level == -1) { |
|
646 |
n = _level->highestActive(); |
|
647 |
level = _level->highestActiveLevel(); |
|
648 |
if (n == INVALID) goto first_phase_done; |
|
649 |
} else { |
|
650 |
n = _level->activeOn(level); |
|
651 |
} |
|
652 |
--num; |
|
653 |
|
|
640 | 654 |
Value excess = (*_excess)[n]; |
641 | 655 |
int new_level = _level->maxLevel(); |
642 | 656 |
|
... | ... |
@@ -702,19 +716,9 @@ |
702 | 716 |
} else { |
703 | 717 |
_level->deactivate(n); |
704 | 718 |
} |
705 |
|
|
706 |
while (level >= 0 && _level->activeFree(level)) { |
|
707 |
--level; |
|
708 |
} |
|
709 |
if (level == -1) { |
|
710 |
n = _level->highestActive(); |
|
711 |
level = _level->highestActiveLevel(); |
|
712 |
} else { |
|
713 |
n = _level->activeOn(level); |
|
714 |
} |
|
715 |
--num; |
|
716 | 719 |
} |
717 | 720 |
} |
721 |
first_phase_done:; |
|
718 | 722 |
} |
719 | 723 |
|
720 | 724 |
/// \brief Starts the second phase of the preflow algorithm. |
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