r644:2ca0cdb5f366
Sat, 18 Apr 2009 21:01:12
[Not Reviewed]
0 comments (0 inline)
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| ... | ... |
@@ -181,96 +181,97 @@ |
| 181 | 181 |
_last[bucket] = (*_prev)[i]; |
| 182 | 182 |
} |
| 183 | 183 |
//lace |
| 184 | 184 |
(*_next)[i] = _first[bucket]; |
| 185 | 185 |
(*_prev)[_first[bucket]] = i; |
| 186 | 186 |
(*_prev)[i] = INVALID; |
| 187 | 187 |
_first[bucket] = i; |
| 188 | 188 |
} |
| 189 | 189 |
|
| 190 | 190 |
void deactivate(const Node& i) {
|
| 191 | 191 |
(*_active)[i] = false; |
| 192 | 192 |
int bucket = (*_bucket)[i]; |
| 193 | 193 |
|
| 194 | 194 |
if ((*_next)[i] == INVALID || !(*_active)[(*_next)[i]]) return; |
| 195 | 195 |
|
| 196 | 196 |
//unlace |
| 197 | 197 |
(*_prev)[(*_next)[i]] = (*_prev)[i]; |
| 198 | 198 |
if ((*_prev)[i] != INVALID) {
|
| 199 | 199 |
(*_next)[(*_prev)[i]] = (*_next)[i]; |
| 200 | 200 |
} else {
|
| 201 | 201 |
_first[bucket] = (*_next)[i]; |
| 202 | 202 |
} |
| 203 | 203 |
//lace |
| 204 | 204 |
(*_prev)[i] = _last[bucket]; |
| 205 | 205 |
(*_next)[_last[bucket]] = i; |
| 206 | 206 |
(*_next)[i] = INVALID; |
| 207 | 207 |
_last[bucket] = i; |
| 208 | 208 |
} |
| 209 | 209 |
|
| 210 | 210 |
void addItem(const Node& i, int bucket) {
|
| 211 | 211 |
(*_bucket)[i] = bucket; |
| 212 | 212 |
if (_last[bucket] != INVALID) {
|
| 213 | 213 |
(*_prev)[i] = _last[bucket]; |
| 214 | 214 |
(*_next)[_last[bucket]] = i; |
| 215 | 215 |
(*_next)[i] = INVALID; |
| 216 | 216 |
_last[bucket] = i; |
| 217 | 217 |
} else {
|
| 218 | 218 |
(*_prev)[i] = INVALID; |
| 219 | 219 |
_first[bucket] = i; |
| 220 | 220 |
(*_next)[i] = INVALID; |
| 221 | 221 |
_last[bucket] = i; |
| 222 | 222 |
} |
| 223 | 223 |
} |
| 224 | 224 |
|
| 225 | 225 |
void findMinCutOut() {
|
| 226 | 226 |
|
| 227 | 227 |
for (NodeIt n(_graph); n != INVALID; ++n) {
|
| 228 | 228 |
(*_excess)[n] = 0; |
| 229 |
(*_source_set)[n] = false; |
|
| 229 | 230 |
} |
| 230 | 231 |
|
| 231 | 232 |
for (ArcIt a(_graph); a != INVALID; ++a) {
|
| 232 | 233 |
(*_flow)[a] = 0; |
| 233 | 234 |
} |
| 234 | 235 |
|
| 235 | 236 |
int bucket_num = 0; |
| 236 | 237 |
std::vector<Node> queue(_node_num); |
| 237 | 238 |
int qfirst = 0, qlast = 0, qsep = 0; |
| 238 | 239 |
|
| 239 | 240 |
{
|
| 240 | 241 |
typename Digraph::template NodeMap<bool> reached(_graph, false); |
| 241 | 242 |
|
| 242 | 243 |
reached[_source] = true; |
| 243 | 244 |
bool first_set = true; |
| 244 | 245 |
|
| 245 | 246 |
for (NodeIt t(_graph); t != INVALID; ++t) {
|
| 246 | 247 |
if (reached[t]) continue; |
| 247 | 248 |
_sets.push_front(std::list<int>()); |
| 248 | 249 |
|
| 249 | 250 |
queue[qlast++] = t; |
| 250 | 251 |
reached[t] = true; |
| 251 | 252 |
|
| 252 | 253 |
while (qfirst != qlast) {
|
| 253 | 254 |
if (qsep == qfirst) {
|
| 254 | 255 |
++bucket_num; |
| 255 | 256 |
_sets.front().push_front(bucket_num); |
| 256 | 257 |
_dormant[bucket_num] = !first_set; |
| 257 | 258 |
_first[bucket_num] = _last[bucket_num] = INVALID; |
| 258 | 259 |
qsep = qlast; |
| 259 | 260 |
} |
| 260 | 261 |
|
| 261 | 262 |
Node n = queue[qfirst++]; |
| 262 | 263 |
addItem(n, bucket_num); |
| 263 | 264 |
|
| 264 | 265 |
for (InArcIt a(_graph, n); a != INVALID; ++a) {
|
| 265 | 266 |
Node u = _graph.source(a); |
| 266 | 267 |
if (!reached[u] && _tolerance.positive((*_capacity)[a])) {
|
| 267 | 268 |
reached[u] = true; |
| 268 | 269 |
queue[qlast++] = u; |
| 269 | 270 |
} |
| 270 | 271 |
} |
| 271 | 272 |
} |
| 272 | 273 |
first_set = false; |
| 273 | 274 |
} |
| 274 | 275 |
|
| 275 | 276 |
++bucket_num; |
| 276 | 277 |
(*_bucket)[_source] = 0; |
| ... | ... |
@@ -480,96 +481,97 @@ |
| 480 | 481 |
} |
| 481 | 482 |
} |
| 482 | 483 |
new_target = _last[_sets.back().back()]; |
| 483 | 484 |
} |
| 484 | 485 |
|
| 485 | 486 |
(*_bucket)[target] = 0; |
| 486 | 487 |
|
| 487 | 488 |
(*_source_set)[target] = true; |
| 488 | 489 |
for (OutArcIt a(_graph, target); a != INVALID; ++a) {
|
| 489 | 490 |
Value rem = (*_capacity)[a] - (*_flow)[a]; |
| 490 | 491 |
if (!_tolerance.positive(rem)) continue; |
| 491 | 492 |
Node v = _graph.target(a); |
| 492 | 493 |
if (!(*_active)[v] && !(*_source_set)[v]) {
|
| 493 | 494 |
activate(v); |
| 494 | 495 |
} |
| 495 | 496 |
(*_excess)[v] += rem; |
| 496 | 497 |
(*_flow)[a] = (*_capacity)[a]; |
| 497 | 498 |
} |
| 498 | 499 |
|
| 499 | 500 |
for (InArcIt a(_graph, target); a != INVALID; ++a) {
|
| 500 | 501 |
Value rem = (*_flow)[a]; |
| 501 | 502 |
if (!_tolerance.positive(rem)) continue; |
| 502 | 503 |
Node v = _graph.source(a); |
| 503 | 504 |
if (!(*_active)[v] && !(*_source_set)[v]) {
|
| 504 | 505 |
activate(v); |
| 505 | 506 |
} |
| 506 | 507 |
(*_excess)[v] += rem; |
| 507 | 508 |
(*_flow)[a] = 0; |
| 508 | 509 |
} |
| 509 | 510 |
|
| 510 | 511 |
target = new_target; |
| 511 | 512 |
if ((*_active)[target]) {
|
| 512 | 513 |
deactivate(target); |
| 513 | 514 |
} |
| 514 | 515 |
|
| 515 | 516 |
_highest = _sets.back().begin(); |
| 516 | 517 |
while (_highest != _sets.back().end() && |
| 517 | 518 |
!(*_active)[_first[*_highest]]) {
|
| 518 | 519 |
++_highest; |
| 519 | 520 |
} |
| 520 | 521 |
} |
| 521 | 522 |
} |
| 522 | 523 |
} |
| 523 | 524 |
|
| 524 | 525 |
void findMinCutIn() {
|
| 525 | 526 |
|
| 526 | 527 |
for (NodeIt n(_graph); n != INVALID; ++n) {
|
| 527 | 528 |
(*_excess)[n] = 0; |
| 529 |
(*_source_set)[n] = false; |
|
| 528 | 530 |
} |
| 529 | 531 |
|
| 530 | 532 |
for (ArcIt a(_graph); a != INVALID; ++a) {
|
| 531 | 533 |
(*_flow)[a] = 0; |
| 532 | 534 |
} |
| 533 | 535 |
|
| 534 | 536 |
int bucket_num = 0; |
| 535 | 537 |
std::vector<Node> queue(_node_num); |
| 536 | 538 |
int qfirst = 0, qlast = 0, qsep = 0; |
| 537 | 539 |
|
| 538 | 540 |
{
|
| 539 | 541 |
typename Digraph::template NodeMap<bool> reached(_graph, false); |
| 540 | 542 |
|
| 541 | 543 |
reached[_source] = true; |
| 542 | 544 |
|
| 543 | 545 |
bool first_set = true; |
| 544 | 546 |
|
| 545 | 547 |
for (NodeIt t(_graph); t != INVALID; ++t) {
|
| 546 | 548 |
if (reached[t]) continue; |
| 547 | 549 |
_sets.push_front(std::list<int>()); |
| 548 | 550 |
|
| 549 | 551 |
queue[qlast++] = t; |
| 550 | 552 |
reached[t] = true; |
| 551 | 553 |
|
| 552 | 554 |
while (qfirst != qlast) {
|
| 553 | 555 |
if (qsep == qfirst) {
|
| 554 | 556 |
++bucket_num; |
| 555 | 557 |
_sets.front().push_front(bucket_num); |
| 556 | 558 |
_dormant[bucket_num] = !first_set; |
| 557 | 559 |
_first[bucket_num] = _last[bucket_num] = INVALID; |
| 558 | 560 |
qsep = qlast; |
| 559 | 561 |
} |
| 560 | 562 |
|
| 561 | 563 |
Node n = queue[qfirst++]; |
| 562 | 564 |
addItem(n, bucket_num); |
| 563 | 565 |
|
| 564 | 566 |
for (OutArcIt a(_graph, n); a != INVALID; ++a) {
|
| 565 | 567 |
Node u = _graph.target(a); |
| 566 | 568 |
if (!reached[u] && _tolerance.positive((*_capacity)[a])) {
|
| 567 | 569 |
reached[u] = true; |
| 568 | 570 |
queue[qlast++] = u; |
| 569 | 571 |
} |
| 570 | 572 |
} |
| 571 | 573 |
} |
| 572 | 574 |
first_set = false; |
| 573 | 575 |
} |
| 574 | 576 |
|
| 575 | 577 |
++bucket_num; |
| ... | ... |
@@ -66,110 +66,98 @@ |
| 66 | 66 |
CapMap cap; |
| 67 | 67 |
CutMap cut; |
| 68 | 68 |
Value v; |
| 69 | 69 |
|
| 70 | 70 |
HaoOrlin<Digraph, CapMap> ho_test(g, cap); |
| 71 | 71 |
const HaoOrlin<Digraph, CapMap>& |
| 72 | 72 |
const_ho_test = ho_test; |
| 73 | 73 |
|
| 74 | 74 |
ho_test.init(); |
| 75 | 75 |
ho_test.init(n); |
| 76 | 76 |
ho_test.calculateOut(); |
| 77 | 77 |
ho_test.calculateIn(); |
| 78 | 78 |
ho_test.run(); |
| 79 | 79 |
ho_test.run(n); |
| 80 | 80 |
|
| 81 | 81 |
v = const_ho_test.minCutValue(); |
| 82 | 82 |
v = const_ho_test.minCutMap(cut); |
| 83 | 83 |
} |
| 84 | 84 |
|
| 85 | 85 |
template <typename Graph, typename CapMap, typename CutMap> |
| 86 | 86 |
typename CapMap::Value |
| 87 | 87 |
cutValue(const Graph& graph, const CapMap& cap, const CutMap& cut) |
| 88 | 88 |
{
|
| 89 | 89 |
typename CapMap::Value sum = 0; |
| 90 | 90 |
for (typename Graph::ArcIt a(graph); a != INVALID; ++a) {
|
| 91 | 91 |
if (cut[graph.source(a)] && !cut[graph.target(a)]) |
| 92 | 92 |
sum += cap[a]; |
| 93 | 93 |
} |
| 94 | 94 |
return sum; |
| 95 | 95 |
} |
| 96 | 96 |
|
| 97 | 97 |
int main() {
|
| 98 | 98 |
SmartDigraph graph; |
| 99 | 99 |
SmartDigraph::ArcMap<int> cap1(graph), cap2(graph), cap3(graph); |
| 100 | 100 |
SmartDigraph::NodeMap<bool> cut(graph); |
| 101 | 101 |
|
| 102 | 102 |
istringstream input(lgf); |
| 103 | 103 |
digraphReader(graph, input) |
| 104 | 104 |
.arcMap("cap1", cap1)
|
| 105 | 105 |
.arcMap("cap2", cap2)
|
| 106 | 106 |
.arcMap("cap3", cap3)
|
| 107 | 107 |
.run(); |
| 108 | 108 |
|
| 109 | 109 |
{
|
| 110 | 110 |
HaoOrlin<SmartDigraph> ho(graph, cap1); |
| 111 | 111 |
ho.run(); |
| 112 | 112 |
ho.minCutMap(cut); |
| 113 | 113 |
|
| 114 |
// BUG: The cut value should be positive |
|
| 115 |
check(ho.minCutValue() == 0, "Wrong cut value"); |
|
| 116 |
// BUG: It should work |
|
| 117 |
//check(ho.minCutValue() == cutValue(graph, cap1, cut), "Wrong cut value"); |
|
| 114 |
check(ho.minCutValue() == 1, "Wrong cut value"); |
|
| 115 |
check(ho.minCutValue() == cutValue(graph, cap1, cut), "Wrong cut value"); |
|
| 118 | 116 |
} |
| 119 | 117 |
{
|
| 120 | 118 |
HaoOrlin<SmartDigraph> ho(graph, cap2); |
| 121 | 119 |
ho.run(); |
| 122 | 120 |
ho.minCutMap(cut); |
| 123 | 121 |
|
| 124 |
// BUG: The cut value should be positive |
|
| 125 |
check(ho.minCutValue() == 0, "Wrong cut value"); |
|
| 126 |
// BUG: It should work |
|
| 127 |
//check(ho.minCutValue() == cutValue(graph, cap2, cut), "Wrong cut value"); |
|
| 122 |
check(ho.minCutValue() == 1, "Wrong cut value"); |
|
| 123 |
check(ho.minCutValue() == cutValue(graph, cap2, cut), "Wrong cut value"); |
|
| 128 | 124 |
} |
| 129 | 125 |
{
|
| 130 | 126 |
HaoOrlin<SmartDigraph> ho(graph, cap3); |
| 131 | 127 |
ho.run(); |
| 132 | 128 |
ho.minCutMap(cut); |
| 133 | 129 |
|
| 134 |
// BUG: The cut value should be positive |
|
| 135 |
check(ho.minCutValue() == 0, "Wrong cut value"); |
|
| 136 |
// BUG: It should work |
|
| 137 |
//check(ho.minCutValue() == cutValue(graph, cap3, cut), "Wrong cut value"); |
|
| 130 |
check(ho.minCutValue() == 1, "Wrong cut value"); |
|
| 131 |
check(ho.minCutValue() == cutValue(graph, cap3, cut), "Wrong cut value"); |
|
| 138 | 132 |
} |
| 139 | 133 |
|
| 140 | 134 |
typedef Undirector<SmartDigraph> UGraph; |
| 141 | 135 |
UGraph ugraph(graph); |
| 142 | 136 |
|
| 143 | 137 |
{
|
| 144 | 138 |
HaoOrlin<UGraph, SmartDigraph::ArcMap<int> > ho(ugraph, cap1); |
| 145 | 139 |
ho.run(); |
| 146 | 140 |
ho.minCutMap(cut); |
| 147 | 141 |
|
| 148 |
// BUG: The cut value should be 2 |
|
| 149 |
check(ho.minCutValue() == 1, "Wrong cut value"); |
|
| 150 |
// BUG: It should work |
|
| 151 |
//check(ho.minCutValue() == cutValue(ugraph, cap1, cut), "Wrong cut value"); |
|
| 142 |
check(ho.minCutValue() == 2, "Wrong cut value"); |
|
| 143 |
check(ho.minCutValue() == cutValue(ugraph, cap1, cut), "Wrong cut value"); |
|
| 152 | 144 |
} |
| 153 | 145 |
{
|
| 154 | 146 |
HaoOrlin<UGraph, SmartDigraph::ArcMap<int> > ho(ugraph, cap2); |
| 155 | 147 |
ho.run(); |
| 156 | 148 |
ho.minCutMap(cut); |
| 157 | 149 |
|
| 158 |
// TODO: Check this cut value |
|
| 159 |
check(ho.minCutValue() == 4, "Wrong cut value"); |
|
| 160 |
// BUG: It should work |
|
| 161 |
//check(ho.minCutValue() == cutValue(ugraph, cap2, cut), "Wrong cut value"); |
|
| 150 |
check(ho.minCutValue() == 5, "Wrong cut value"); |
|
| 151 |
check(ho.minCutValue() == cutValue(ugraph, cap2, cut), "Wrong cut value"); |
|
| 162 | 152 |
} |
| 163 | 153 |
{
|
| 164 | 154 |
HaoOrlin<UGraph, SmartDigraph::ArcMap<int> > ho(ugraph, cap3); |
| 165 | 155 |
ho.run(); |
| 166 | 156 |
ho.minCutMap(cut); |
| 167 | 157 |
|
| 168 |
// TODO: Check this cut value |
|
| 169 | 158 |
check(ho.minCutValue() == 5, "Wrong cut value"); |
| 170 |
// BUG: It should work |
|
| 171 |
//check(ho.minCutValue() == cutValue(ugraph, cap3, cut), "Wrong cut value"); |
|
| 159 |
check(ho.minCutValue() == cutValue(ugraph, cap3, cut), "Wrong cut value"); |
|
| 172 | 160 |
} |
| 173 | 161 |
|
| 174 | 162 |
return 0; |
| 175 | 163 |
} |
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