From 122b38f853873133a052b644212422736331773b Mon Sep 17 00:00:00 2001
From: ebey97 <ebey97@gmail.com>
Date: Sat, 28 Oct 2017 00:06:12 +0530
Subject: [PATCH 1/2] added 158B Tai

---
 codeforces/Taxi/Makefile  | 13 ++++++++++++
 codeforces/Taxi/README.md |  3 +++
 codeforces/Taxi/main.cpp  | 44 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+)
 create mode 100644 codeforces/Taxi/Makefile
 create mode 100644 codeforces/Taxi/README.md
 create mode 100644 codeforces/Taxi/main.cpp

diff --git a/codeforces/Taxi/Makefile b/codeforces/Taxi/Makefile
new file mode 100644
index 0000000..48d2547
--- /dev/null
+++ b/codeforces/Taxi/Makefile
@@ -0,0 +1,13 @@
+CXX := g++
+CXXFLAGS := -std=c++14 -Wall -o out
+
+default: out run
+
+out: main.cpp
+	$(CXX) $(CXXFLAGS) main.cpp
+
+clean:
+	$(RM) out
+
+run:
+	./out
diff --git a/codeforces/Taxi/README.md b/codeforces/Taxi/README.md
new file mode 100644
index 0000000..577010d
--- /dev/null
+++ b/codeforces/Taxi/README.md
@@ -0,0 +1,3 @@
+# README
+
+[http://codeforces.com/problemset/problem/158/B](http://codeforces.com/problemset/problem/158/B)
diff --git a/codeforces/Taxi/main.cpp b/codeforces/Taxi/main.cpp
new file mode 100644
index 0000000..38c267a
--- /dev/null
+++ b/codeforces/Taxi/main.cpp
@@ -0,0 +1,44 @@
+
+#include<bits/stdc++.h>
+using namespace std;
+typedef long long int INT;
+
+int main()
+{
+    int n;
+    cin>>n;
+    int a[4]={0};
+    int x;
+    for(int i=0;i<n;i++)
+        {
+        cin>>x;
+        a[x-1]++;
+        /*
+        Maps number of groups of 1 -> a[0]
+             number of groups of 2 -> a[1]
+             number of groups of 3 -> a[2]
+             number of groups of 4 -> a[3]
+        */
+    }
+    int group4=a[3];
+    int group3_1=min(a[2],a[0]);
+    int left_3=a[2]-group3_1;
+    int left_1=a[0]-group3_1;
+    int group2_2=a[1]/2;
+    int left_2=a[1]%2;
+    int group2_1_1=left_2;
+    if(group2_1_1 && left_2)
+    {
+        if(left_1>=2)
+        {
+            left_1-=2;
+        }
+        else if(left_1>=1)
+        {
+            left_1-=1;
+        }
+    }
+    int group1=ceil(left_1/4.0);
+    int ans=group4 + group3_1 + group2_2 + left_3 + group2_1_1 + group1;
+    cout<<ans;
+}

From 424f2b6ba38696bb947bfb1ee16522da5973f141 Mon Sep 17 00:00:00 2001
From: ebey97 <ebey97@gmail.com>
Date: Sat, 28 Oct 2017 00:06:45 +0530
Subject: [PATCH 2/2] added 158B Taxi

---
 codeforces/{Taxi => taxi}/Makefile  | 0
 codeforces/{Taxi => taxi}/README.md | 0
 codeforces/{Taxi => taxi}/main.cpp  | 0
 3 files changed, 0 insertions(+), 0 deletions(-)
 rename codeforces/{Taxi => taxi}/Makefile (100%)
 rename codeforces/{Taxi => taxi}/README.md (100%)
 rename codeforces/{Taxi => taxi}/main.cpp (100%)

diff --git a/codeforces/Taxi/Makefile b/codeforces/taxi/Makefile
similarity index 100%
rename from codeforces/Taxi/Makefile
rename to codeforces/taxi/Makefile
diff --git a/codeforces/Taxi/README.md b/codeforces/taxi/README.md
similarity index 100%
rename from codeforces/Taxi/README.md
rename to codeforces/taxi/README.md
diff --git a/codeforces/Taxi/main.cpp b/codeforces/taxi/main.cpp
similarity index 100%
rename from codeforces/Taxi/main.cpp
rename to codeforces/taxi/main.cpp