From 1b8f7c9d4eb8b767d32dbbbfd96662b73c037627 Mon Sep 17 00:00:00 2001
From: omagdy7 <omar.professional8777@gmail.com>
Date: Wed, 29 Jun 2022 15:57:29 +0200
Subject: Solved some problem from codechef and codeforces

---
 codechef/DenseBracketSequence/inp              |   0
 codechef/DenseBracketSequence/main             | Bin 0 -> 39024 bytes
 codechef/DenseBracketSequence/main.cpp         |  33 +++++++++++++++++++++++++
 codechef/DenseBracketSequence/main_input0.txt  |   9 +++++++
 codechef/DenseBracketSequence/main_input1.txt  |   7 ++++++
 codechef/DenseBracketSequence/main_output0.txt |   4 +++
 codechef/DenseBracketSequence/main_output1.txt |   3 +++
 7 files changed, 56 insertions(+)
 create mode 100644 codechef/DenseBracketSequence/inp
 create mode 100755 codechef/DenseBracketSequence/main
 create mode 100644 codechef/DenseBracketSequence/main.cpp
 create mode 100644 codechef/DenseBracketSequence/main_input0.txt
 create mode 100644 codechef/DenseBracketSequence/main_input1.txt
 create mode 100644 codechef/DenseBracketSequence/main_output0.txt
 create mode 100644 codechef/DenseBracketSequence/main_output1.txt

(limited to 'codechef/DenseBracketSequence')

diff --git a/codechef/DenseBracketSequence/inp b/codechef/DenseBracketSequence/inp
new file mode 100644
index 0000000..e69de29
diff --git a/codechef/DenseBracketSequence/main b/codechef/DenseBracketSequence/main
new file mode 100755
index 0000000..4682a3d
Binary files /dev/null and b/codechef/DenseBracketSequence/main differ
diff --git a/codechef/DenseBracketSequence/main.cpp b/codechef/DenseBracketSequence/main.cpp
new file mode 100644
index 0000000..6785a12
--- /dev/null
+++ b/codechef/DenseBracketSequence/main.cpp
@@ -0,0 +1,33 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+  ios_base::sync_with_stdio(false);
+  cin.tie(NULL);
+  int tt;
+  cin >> tt;
+  while (tt--) {
+    int n;
+    cin >> n;
+    string s;
+    cin >> s;
+    int count = 0;
+    stack<char> st;
+    st.push(s[0]);
+    for(int i = 1; i < n; i++) {
+      if(s[i] == '(') {
+        st.push('(');
+      }
+      if(s[i] == ')') {
+        if(st.top() == '(' && !st.empty()){
+          st.pop();
+          count++;
+        }
+      }
+    }
+    cout << count << endl;
+  }
+}
+
+
diff --git a/codechef/DenseBracketSequence/main_input0.txt b/codechef/DenseBracketSequence/main_input0.txt
new file mode 100644
index 0000000..c93dd40
--- /dev/null
+++ b/codechef/DenseBracketSequence/main_input0.txt
@@ -0,0 +1,9 @@
+4
+8
+()(())()
+6
+((()))
+10
+()()()()()
+8
+((()))()
diff --git a/codechef/DenseBracketSequence/main_input1.txt b/codechef/DenseBracketSequence/main_input1.txt
new file mode 100644
index 0000000..017efbb
--- /dev/null
+++ b/codechef/DenseBracketSequence/main_input1.txt
@@ -0,0 +1,7 @@
+3
+5
+(()))
+5
+()())
+7
+((())))
\ No newline at end of file
diff --git a/codechef/DenseBracketSequence/main_output0.txt b/codechef/DenseBracketSequence/main_output0.txt
new file mode 100644
index 0000000..c49baff
--- /dev/null
+++ b/codechef/DenseBracketSequence/main_output0.txt
@@ -0,0 +1,4 @@
+2
+0
+4
+2
diff --git a/codechef/DenseBracketSequence/main_output1.txt b/codechef/DenseBracketSequence/main_output1.txt
new file mode 100644
index 0000000..ae7dd0b
--- /dev/null
+++ b/codechef/DenseBracketSequence/main_output1.txt
@@ -0,0 +1,3 @@
+1
+1
+1
\ No newline at end of file
-- 
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