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authorAlexandre Jesus <adbjesus@gmail.com>2017-11-06 18:42:05 +0000
committerAlexandre Jesus <adbjesus@gmail.com>2017-11-06 18:42:05 +0000
commit03a83f221247a6a730bfedfc41671868ad0f42c6 (patch)
tree8cce098074c005bb978330afd989f444ddcbcd9c
parent01c757e09afbc6ae401a56e9f588b21cea54b613 (diff)
downloadlibuknapsack-03a83f221247a6a730bfedfc41671868ad0f42c6.tar.gz
libuknapsack-03a83f221247a6a730bfedfc41671868ad0f42c6.zip
Save time and all points on nem_ull
-rw-r--r--src/nem_ull.c44
1 files changed, 40 insertions, 4 deletions
diff --git a/src/nem_ull.c b/src/nem_ull.c
index 6405fc2..2605e69 100644
--- a/src/nem_ull.c
+++ b/src/nem_ull.c
@@ -5,16 +5,46 @@
#include "common.h"
struct front_item * nem_ull(struct data * d){
- struct front_item * begin;
+ struct front_item * front;
+ struct front_item * ret_front;
+ struct front_item * it;
+ struct front_item * tmp;
+ struct front_item * jt;
int i;
- begin = new_front_item(0,0,NULL,NULL);
+ front = new_front_item(0,0,NULL,NULL);
+ ret_front = new_front_item(0,0,NULL,NULL);
for(i=0;i<d->N;++i){
- begin = nem_ull_step(begin,d,i);
+ front = nem_ull_step(front,d,i);
+
+ it = ret_front;
+ jt = front;
+ while(it != NULL && jt != NULL) {
+ if(it->i.p == jt->i.p && it->i.w == jt->i.w) {
+ jt = jt->next;
+ if(it->next == NULL) break;
+ it = it->next;
+ } else if(it->i.p < jt->i.p || (it->i.p == jt->i.p && it->i.w < jt->i.w)) {
+ if(it->next == NULL) break;
+ it = it->next;
+ } else if(it->i.p > jt->i.p || (it->i.p == jt->i.p && it->i.w > jt->i.w)) {
+ tmp = new_front_item(jt->i.p, jt->i.w, it->prev, it);
+ tmp->time = jt->time;
+ tmp->prev->next = tmp;
+ tmp->next->prev = tmp;
+ jt = jt->next;
+ }
+ }
+
+ for(; jt != NULL; jt = jt->next) {
+ it->next = new_front_item(jt->i.p, jt->i.w, it, NULL);
+ it->next->time = jt->time;
+ it = it->next;
+ }
}
- return begin;
+ return ret_front;
}
struct front_item * nem_ull_online_shuffle(struct data * d, int rand_i){
@@ -68,17 +98,20 @@ struct front_item * nem_ull_step(struct front_item * b, struct data * d, int it)
double pmax;
struct item * l0;
struct item * l1;
+ clock_t * c0;
struct front_item * p = b;
for(n=0;p!=NULL;p=p->next,++n);
p = b;
l0 = (struct item *)malloc(n*sizeof(struct item));
+ c0 = (clock_t *)malloc(n*sizeof(clock_t));
l1 = (struct item *)malloc(n*sizeof(struct item));
for(i=0;i<n;++i){
l0[i].p=p->i.p;
l0[i].w=p->i.w;
+ c0[i] = p->time;
l1[i].p=p->i.p + d->items[it].p;
l1[i].w=p->i.w + d->items[it].w;
@@ -117,6 +150,7 @@ struct front_item * nem_ull_step(struct front_item * b, struct data * d, int it)
if(l1t == n){
for(;l0t<n;++l0t){
p = new_front_item(l0[l0t].p, l0[l0t].w, p, NULL);
+ p->time = c0[l0t];
p->prev->next = p;
}
break;
@@ -124,6 +158,7 @@ struct front_item * nem_ull_step(struct front_item * b, struct data * d, int it)
if((l0[l0t].w < l1[l1t].w) || ((l0[l0t].w == l1[l1t].w) && (l0[l0t].p > l1[l1t].p))){
p = new_front_item(l0[l0t].p, l0[l0t].w , p, NULL);
+ p->time = c0[l0t];
p->prev->next = p;
pmax = l0[l0t].p;
++l0t;
@@ -136,6 +171,7 @@ struct front_item * nem_ull_step(struct front_item * b, struct data * d, int it)
}
free(l0);
+ free(c0);
free(l1);
for(;p->prev!=NULL;p=p->prev);