diff --git a/cv6/a_station.c b/cv6/a_station.c
index 8f659d6..d0e7f97 100644
--- a/cv6/a_station.c
+++ b/cv6/a_station.c
@@ -2,32 +2,74 @@
 #include <stdlib.h>
 #include <string.h>
 
-struct station* create_station(){
-   struct station* station = (struct station*)calloc(1,sizeof(struct station));
-   station->tracks = (struct car**)calloc(STATION_SIZE, sizeof(struct car*));
-   station->track_count = STATION_SIZE;
-   return station;
+struct station* create_station() {
+    struct station* station = (struct station*)calloc(1, sizeof(struct station));
+    station->tracks = (struct car**)calloc(STATION_SIZE, sizeof(struct car*));
+    station->track_count = STATION_SIZE;
+    return station;
 }
 
-void destroy_station(struct station* station){
+void destroy_station(struct station* station) {
+    if (station == NULL) return;
+
+    for (int i = 0; i < station->track_count; i++) {
+        free(station->tracks[i]);
+    }
+    free(station->tracks);
+    free(station);
 }
 
-int select_track(struct station* station, const char* target){
+int select_track(struct station* station, const char* target) {
+    for (int i = 0; i < station->track_count; i++) {
+        if (station->tracks[i] != NULL && strcmp(station->tracks[i]->target, target) == 0) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+void add_target_capacity(struct station* station, const char* target, int capacity) {
+    int track_index = select_track(station, target);
+
+    if (track_index != -1) {
+        station->tracks[track_index]->capacity += capacity;
+    } else {
+        for (int i = 0; i < station->track_count; i++) {
+            if (station->tracks[i] == NULL) {
+                station->tracks[i] = (struct car*)malloc(sizeof(struct car));
+                strncpy(station->tracks[i]->target, target, sizeof(station->tracks[i]->target) - 1);
+                station->tracks[i]->target[sizeof(station->tracks[i]->target) - 1] = '\0';
+                station->tracks[i]->capacity = capacity;
+                break;
+            }
+        }
+    }
+}
+
+int get_target_capacity(struct station* station, const char* target) {
+    int track_index = select_track(station, target);
+    if (track_index != -1) {
+        return station->tracks[track_index]->capacity;
+    }
     return 0;
 }
 
-void add_target_capacity(struct station* station,const char* target, int capacity){
-}
-
-int get_target_capacity(struct station* station,const char* target){
-    return 0;
-}
-
-int count_targets(struct station* station){
-    return 0;
-}
-
-int count_capacity(struct station* station){
-    return 0;
+int count_targets(struct station* station) {
+    int count = 0;
+    for (int i = 0; i < station->track_count; i++) {
+        if (station->tracks[i] != NULL) {
+            count++;
+        }
+    }
+    return count;
 }
 
+int count_capacity(struct station* station) {
+    int total_capacity = 0;
+    for (int i = 0; i < station->track_count; i++) {
+        if (station->tracks[i] != NULL) {
+            total_capacity += station->tracks[i]->capacity;
+        }
+    }
+    return total_capacity;
+}
\ No newline at end of file