diff --git a/src/main.odin b/src/main.odin
index 41bd9f3..59047b7 100644
--- a/src/main.odin
+++ b/src/main.odin
@@ -3,6 +3,7 @@ package main
 import "core:container/bit_array"
 import "core:fmt"
 import "core:math"
+import "core:math/rand"
 import "core:os"
 import "core:strconv"
 import "core:strings"
@@ -10,6 +11,7 @@ import "core:strings"
 DATA_FILE :: "res/knapPI_12_500_1000_82.csv"
 NUMBER_OF_ITEMS :: 500
 CAPACITY :: 280785
+POPULATION_SIZE :: 100
 
 Item :: struct {
 	profit, weight: int,
@@ -50,6 +52,23 @@ fitness :: proc(chrom: ^Chromosome) -> int {
 	return tot_profit + penalize(distance(tot_weight, CAPACITY))
 }
 
+Population :: [POPULATION_SIZE]Chromosome
+
+generate_population :: proc() -> (res: Population) {
+	for &chrom in res {
+		chrom = bit_array.create(NUMBER_OF_ITEMS)^
+		for i in 0 ..< NUMBER_OF_ITEMS {
+			bit_array.set(&chrom, i, rand.int_max(2) == 1)
+		}
+	}
+	return
+}
+
+destroy_population :: proc(pop: ^Population) {
+	for &chrom in pop {
+		bit_array.destroy(&chrom)
+	}
+}
 
 main :: proc() {
 	items, ok := read_data(DATA_FILE)