From ada2511a52067ff1fd006993831279faba79241f Mon Sep 17 00:00:00 2001
From: Alexandre Jesus <adbjesus@gmail.com>
Date: Wed, 2 Nov 2016 21:31:27 +0000
Subject: Use sys/time.h to seed random generator

---
 src/main/uknapsack.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main/uknapsack.c b/src/main/uknapsack.c
index e7f3055..1c66430 100644
--- a/src/main/uknapsack.c
+++ b/src/main/uknapsack.c
@@ -2,6 +2,7 @@
 #include <time.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/time.h>
 #include "common.h"
 #include "structs.h"
 #include "dfs.h"
@@ -20,8 +21,12 @@ int main(int argc, char * argv[]){
 
   data = input(argv[3]);
 
+  /* Seed Random Generator */
+  struct timeval tv;
+  gettimeofday(&tv,NULL);
+  srand(tv.tv_sec + tv.tv_usec);
+
   /* Sort data */
-  srand(time(NULL));
   if(strcmp(argv[2], "random") == 0) {
     qsort(data->items, data->N, sizeof(struct item), cmp_items_random);
   } else if(strcmp(argv[2], "ratio") == 0) {
-- 
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