diff --git a/app/controllers/volume_controller.rb b/app/controllers/volume_controller.rb
index 211e717..c76c8e2 100644
--- a/app/controllers/volume_controller.rb
+++ b/app/controllers/volume_controller.rb
@@ -72,8 +72,16 @@ class VolumeController < ApplicationController
         mnt_dest = mnt_dir + "/" + file.original_filename
 
         puts "upload start"
-        u = AvatarUploader.new
-        u.store_path(:dir)
+        # get permission
+#        dir_left = mnt_dir[0..mnt_dir.rindex('/')]
+#        dir_right = mnt_dir.split(dir_left)[1]
+#        pe = `ls -al #{dir_left} | grep #{dir_right}`.split(" ")[0]
+
+#        puts "111" + dir_left
+#        puts "222" + dir_right
+#        puts "333" + pe
+
+        u = AvatarUploader.new(mnt_dir)
         u.store!(file)
         puts "upload end"
 
diff --git a/app/uploaders/avatar_uploader.rb b/app/uploaders/avatar_uploader.rb
index 7aaaf32..0a81dca 100644
--- a/app/uploaders/avatar_uploader.rb
+++ b/app/uploaders/avatar_uploader.rb
@@ -9,10 +9,17 @@ class AvatarUploader < CarrierWave::Uploader::Base
   # Choose what kind of storage to use for this uploader:
   storage :file
   # storage :fog
+  @path
+
+  def initialize(dest = "/mnt/dir")
+    super
+    @path = dest
+  end
 
   # Override the directory where uploaded files will be stored.
   # This is a sensible default for uploaders that are meant to be mounted:
-  def store_dir
+  def cache_dir
+      @path
   end
 
   # Provide a default URL as a default if there hasn't been a file uploaded:
diff --git a/app/views/volume/index.html.erb b/app/views/volume/index.html.erb
index 924df1e..dcf8f94 100644
--- a/app/views/volume/index.html.erb
+++ b/app/views/volume/index.html.erb
@@ -230,7 +230,10 @@
                     new_tr += "<td style='color:#0d8ade;' class='sorting_1'><i class='fa fa-folder-open-o'></i> ";
                     new_tr += "<a  style='cursor: pointer'  onclick='change_directory(" +'"' + cur + "/" + result.file[i].name +'"'+ ")'>" + result.file[i].name + "</a></td>";
                     new_tr += "<td>"+result.file[i].auth+"</td>";
-                    new_tr += "<td><button class='btn btn-primary pull-right'>select</botton></td>";
+                    new_tr += "<td><form data-parsley-validate>";
+                    new_tr += "<input type='hidden' value='" + cur + "/" + result.file[i].name + "'>";
+                    new_tr += "<button type='submit' class='btn btn-primary pull-right'>select</botton>";
+                    new_tr += "</form></td>"
                     new_tr += "</tr>";
                 }
                 $("#datatable_body").append(new_tr);
@@ -241,7 +244,6 @@
     <!-- Mount overlay functions -->
     <script>
     $("#popup_mount #datatable_body form").submit(function(){
-        var mnt_point = $(this).find("input").val();
         var url = window.location + '';
         var vol_name = url.match(/volume_name=([^#]+)/)[1];
         $.ajax({
diff --git a/public/uploads/tmp/1473923269-10904-0001-1439/1366.cpp b/public/uploads/tmp/1473923269-10904-0001-1439/1366.cpp
new file mode 100644
index 0000000..77c9499
--- /dev/null
+++ b/public/uploads/tmp/1473923269-10904-0001-1439/1366.cpp
@@ -0,0 +1,113 @@
+#include <iostream>
+#include <cstdio>
+#include <cstring>
+#define min(a,b) ((a)<(b)?(a):(b))
+
+using namespace std;
+const int MAX_N = 6;
+const int INF = 1e9;
+const char interval[12][3]
+    = {"A", "A#", "B", "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#"};
+int n, m;
+int str[MAX_N];
+int tune[MAX_N];
+int music[MAX_N];
+int difficulty[MAX_N];
+
+/*
+6 3
+E A D G B E
+E G# B
+6 3
+E E B G# B E
+E G# B
+6 3
+E E G# B A A
+E G# B
+6 3
+E E G# B B A
+E G# B
+6 3
+A A A A A A
+E G# B
+*/
+
+int solve(int x)
+{
+    if(x == n)
+    {
+        int cnt = 0;
+        bool chk[6] = {false};
+
+        for(int i = 0; i < n; ++i)
+        {
+            bool is_harmony = false;
+
+            for(int j = 0; j < m; ++j)
+            {
+                if(str[i] == music[j])
+                {
+                    chk[j] = true;
+                    is_harmony = true;
+                }
+            }
+
+            if(!is_harmony) return INF;
+        }
+
+        for(int i = 0; i < m; ++i)
+            if(!chk[i]) return INF;
+
+        int high = 0, low = INF;
+
+        for(int i = 0; i < n; ++i)
+        {
+            if(tune[i] == str[i]) continue;
+            ++cnt;
+
+            int diff = min((tune[i] - str[i] + 12) % 12, (str[i] - tune[i] + 12) % 12);
+
+            if(high < diff) high = diff;
+            if(low > diff) low = diff;
+        }
+
+        if(!cnt) return 0;
+        if(cnt == 1) return high + 1;
+        return high - low + 1;
+    }
+
+    int ret = INF;
+
+    for(int i = 0; i < 12; ++i)
+    {
+        str[x] = i;
+        int tmp = solve(x + 1);
+        ret = min(ret, tmp);
+    }
+
+    return ret;
+}
+
+void get(int *cord)
+{
+    char in[3]; cin >> in;
+    for(int i = 0; i < 12; ++i)
+        if(!strcmp(in, interval[i])) *cord = i;
+}
+
+void proc()
+{
+    cin >> n >> m;
+    for(int i = 0; i < n; ++i) get(&tune[i]);
+    for(int i = 0; i < m; ++i) get(&music[i]);
+
+    if(!n || !m) {cout << 0; return;}
+    
+    cout << solve(0) << "\n";
+}
+
+int main()
+{
+    proc();
+    return 0;
+}
diff --git a/public/uploads/tmp/1473923499-10904-0002-5947/1366.cpp b/public/uploads/tmp/1473923499-10904-0002-5947/1366.cpp
new file mode 100644
index 0000000..77c9499
--- /dev/null
+++ b/public/uploads/tmp/1473923499-10904-0002-5947/1366.cpp
@@ -0,0 +1,113 @@
+#include <iostream>
+#include <cstdio>
+#include <cstring>
+#define min(a,b) ((a)<(b)?(a):(b))
+
+using namespace std;
+const int MAX_N = 6;
+const int INF = 1e9;
+const char interval[12][3]
+    = {"A", "A#", "B", "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#"};
+int n, m;
+int str[MAX_N];
+int tune[MAX_N];
+int music[MAX_N];
+int difficulty[MAX_N];
+
+/*
+6 3
+E A D G B E
+E G# B
+6 3
+E E B G# B E
+E G# B
+6 3
+E E G# B A A
+E G# B
+6 3
+E E G# B B A
+E G# B
+6 3
+A A A A A A
+E G# B
+*/
+
+int solve(int x)
+{
+    if(x == n)
+    {
+        int cnt = 0;
+        bool chk[6] = {false};
+
+        for(int i = 0; i < n; ++i)
+        {
+            bool is_harmony = false;
+
+            for(int j = 0; j < m; ++j)
+            {
+                if(str[i] == music[j])
+                {
+                    chk[j] = true;
+                    is_harmony = true;
+                }
+            }
+
+            if(!is_harmony) return INF;
+        }
+
+        for(int i = 0; i < m; ++i)
+            if(!chk[i]) return INF;
+
+        int high = 0, low = INF;
+
+        for(int i = 0; i < n; ++i)
+        {
+            if(tune[i] == str[i]) continue;
+            ++cnt;
+
+            int diff = min((tune[i] - str[i] + 12) % 12, (str[i] - tune[i] + 12) % 12);
+
+            if(high < diff) high = diff;
+            if(low > diff) low = diff;
+        }
+
+        if(!cnt) return 0;
+        if(cnt == 1) return high + 1;
+        return high - low + 1;
+    }
+
+    int ret = INF;
+
+    for(int i = 0; i < 12; ++i)
+    {
+        str[x] = i;
+        int tmp = solve(x + 1);
+        ret = min(ret, tmp);
+    }
+
+    return ret;
+}
+
+void get(int *cord)
+{
+    char in[3]; cin >> in;
+    for(int i = 0; i < 12; ++i)
+        if(!strcmp(in, interval[i])) *cord = i;
+}
+
+void proc()
+{
+    cin >> n >> m;
+    for(int i = 0; i < n; ++i) get(&tune[i]);
+    for(int i = 0; i < m; ++i) get(&music[i]);
+
+    if(!n || !m) {cout << 0; return;}
+    
+    cout << solve(0) << "\n";
+}
+
+int main()
+{
+    proc();
+    return 0;
+}
diff --git a/public/uploads/tmp/1473923531-10904-0003-1499/1475.cpp b/public/uploads/tmp/1473923531-10904-0003-1499/1475.cpp
new file mode 100755
index 0000000..d8e3af3
--- /dev/null
+++ b/public/uploads/tmp/1473923531-10904-0003-1499/1475.cpp
@@ -0,0 +1,33 @@
+#include <cstdio>
+#include <cstring>
+#define max(a,b) ((a)<(b)?(b):(a))
+
+int main()
+{
+	int counter[10] = {0};
+	char number[100];
+
+	scanf("%s", number);
+
+	int len = strlen(number);
+	for(int i = 0; i <len; i++) 
+		counter[number[i] - 48]++;
+
+	while(counter[6] < counter[9])
+	{
+		counter[6]++;
+		counter[9]--;
+	}
+
+	while(counter[9] < counter[6])
+	{
+		counter[6]--;
+		counter[9]++;
+	}
+
+	int sol = 0;
+	for(int i = 0; i < 10; i++)
+		if(sol < counter[i]) sol = counter[i];
+
+	printf("%d\n", sol);
+}
diff --git a/public/uploads/tmp/1473923555-10904-0004-8765/1261.cpp b/public/uploads/tmp/1473923555-10904-0004-8765/1261.cpp
new file mode 100755
index 0000000..a5e7b35
--- /dev/null
+++ b/public/uploads/tmp/1473923555-10904-0004-8765/1261.cpp
@@ -0,0 +1,60 @@
+#include <iostream>
+#include <cstdio>
+#include <queue>
+#include <vector>
+
+using namespace std;
+const int MAX_N = 100;
+const int INF = 1000000007;
+const int dy[] = {0, 0, 1, -1};
+const int dx[] = {1, -1, 0, 0};
+int n, m;
+char maze[MAX_N+2][MAX_N+2];
+int dist[MAX_N+2][MAX_N+2];
+
+int solve()
+{
+    for(int i = 0; i < n; ++i)
+        for(int j = 0; j < m; ++j)
+            dist[i][j] = INF;
+    queue<pair<int, int> > q;
+    q.push(make_pair(0, 0));
+    dist[0][0] = 0;
+
+    while(!q.empty())
+    {
+        int y = q.front().first;
+        int x = q.front().second;
+        q.pop();
+
+        for(int i = 0; i < 4; ++i)
+        {
+            int ny = y + dy[i];
+            int nx = x + dx[i];
+
+            if(ny >= 0 && ny < n &&
+                nx >= 0 && nx < m &&
+                (dist[ny][nx] > dist[y][x] + (maze[ny][nx] == '1')))
+            {
+                dist[ny][nx] = dist[y][x] + (maze[ny][nx] == '1');
+                q.push(make_pair(ny, nx));
+            }
+        }
+    }
+
+    return dist[n - 1][m - 1];
+}
+
+void proc()
+{
+    cin >> m >> n;
+    for(int i = 0; i < n; ++i)
+        cin >> maze[i];
+    cout << solve() << endl;
+}
+
+int main()
+{
+    proc();
+    return 0;
+}