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authorAlexandre Jesus <adbjesus@gmail.com>2016-09-23 09:34:49 +0100
committerAlexandre Jesus <adbjesus@gmail.com>2016-09-23 09:34:49 +0100
commit6c620091ec068c31e4ed5e7e480b5abdd2329b0f (patch)
tree74e1de882b838c0da5f08cf32aaa46a9993ed25f /src/main
parent7963cc3c89b8c03a073d17f58833ad191a3903a9 (diff)
downloadlibuknapsack-6c620091ec068c31e4ed5e7e480b5abdd2329b0f.tar.gz
libuknapsack-6c620091ec068c31e4ed5e7e480b5abdd2329b0f.zip
Add random heuristic method
Diffstat (limited to 'src/main')
-rw-r--r--src/main/random_heuristic.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/main/random_heuristic.c b/src/main/random_heuristic.c
new file mode 100644
index 0000000..9f3c683
--- /dev/null
+++ b/src/main/random_heuristic.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <time.h>
+#include <stdlib.h>
+#include "common.h"
+#include "structs.h"
+#include "random_heuristic.h"
+
+int main(int argc, char * argv[]){
+ struct data * d;
+ struct front_item * b;
+
+ if(argc!=2){
+ printf("Wrong number of arguments!\n");
+ printf("Example usage: %s data_file\n",argv[0]);
+ return 0;
+ }
+
+ d = input(argv[1]);
+
+ /* srand() and qsort data */
+ srand(time(NULL));
+ qsort(d->items, d->N, sizeof(struct item), cmp_items_ratio);
+
+ clock_t t = clock();
+ b = random_heuristic(d);
+
+ t = clock() - t;
+ printf("%f,%d\n",((float)t)/CLOCKS_PER_SEC,len_front(b));
+
+ print_front(b);
+
+ free_front(b);
+ free_data(d);
+
+ return 0;
+}