diff --git a/A2/fhistogram-mt b/A2/fhistogram-mt
index 3e8a058..1062568 100755
Binary files a/A2/fhistogram-mt and b/A2/fhistogram-mt differ
diff --git a/A2/fhistogram-mt.c b/A2/fhistogram-mt.c
index 65debb4..e44bbec 100644
--- a/A2/fhistogram-mt.c
+++ b/A2/fhistogram-mt.c
@@ -14,7 +14,7 @@
 
 #include "job_queue.h"
 
-pthread_mutex_t stdout_mutex = PTHREAD_MUTEX_INITIALIZER;
+pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
 
 // err.h contains various nonstandard BSD extensions, but they are
 // very handy.
@@ -26,7 +26,12 @@ int global_histogram[8] = { 0 };
 
 struct job_queue q;
 
-
+void update_histogram_mt(int local_histogram[8]) {
+    pthread_mutex_lock(&mutex);
+    merge_histogram(local_histogram, global_histogram);
+    print_histogram(global_histogram);
+    pthread_mutex_unlock(&mutex);
+}
 
 int fhistogram_mt(char const *path) {
     FILE *f = fopen(path, "r");
diff --git a/A2/src.zip b/A2/src.zip
index d40ab08..656c4c9 100644
Binary files a/A2/src.zip and b/A2/src.zip differ
diff --git a/A3/src/cascade b/A3/src/cascade
index fec961f..db63bc1 100755
Binary files a/A3/src/cascade and b/A3/src/cascade differ
diff --git a/A3/src/cascade.c b/A3/src/cascade.c
index 6d4ea20..6c116b0 100644
--- a/A3/src/cascade.c
+++ b/A3/src/cascade.c
@@ -329,7 +329,9 @@ csc_file_t* csc_parse_file(const char* sourcefile, const char* destination)
     casc_file_data->blockcount = 1 + floor(
         (casc_file_data->targetsize - 1.0)/casc_file_data->blocksize
     );
-    casc_file_data->trailblocksize = casc_file_data->targetsize - ((casc_file_data->blockcount - 1) * casc_file_data->blocksize);
+    casc_file_data->trailblocksize = casc_file_data->targetsize - (
+        (casc_file_data->blockcount - 1) * casc_file_data->blocksize
+    );
     casc_file_data->completed = 0;
 
     csc_block_t* block_list = malloc(
@@ -405,8 +407,9 @@ void get_block(csc_block_t* block, csc_peer_t peer, unsigned char* hash, char* o
     } else {
         buffer_size = MAX_LINE;
     }
-    rio_t rio;
     char rio_buf[buffer_size];
+
+    rio_t rio;
     int peer_socket;
     peer_socket = Open_clientfd(peer.ip, peer.port);
     Rio_readinitb(&rio, peer_socket);
@@ -487,7 +490,6 @@ void get_block(csc_block_t* block, csc_peer_t peer, unsigned char* hash, char* o
  */
 int get_peers_list(csc_peer_t** peers, uint8_t hash[32])
 {
-
     rio_t rio;
     uint8_t rio_buf[MAX_LINE];