From 4edcc17a6b8ad0933e9e9e643e5620098f6cde05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexandru=20Tof=C4=83nel?=
 <alexandru.tofanel@student.unitbv.ro>
Date: Fri, 12 Dec 2025 13:00:48 +0200
Subject: [PATCH] paranteze intermediar

---
 tema_3/paranteze.cpp | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/tema_3/paranteze.cpp b/tema_3/paranteze.cpp
index 529d97b..2272e02 100644
--- a/tema_3/paranteze.cpp
+++ b/tema_3/paranteze.cpp
@@ -4,7 +4,51 @@
 //([]) nu este corect, şirul ()]( nu este corect.
 //
 #include <iostream>
+#include <stack>
+
+std::string paranteze;
+std::stack<char> stiva;
+    int ok=1;
+
+void rotundeInchise(std::string paranteze);
 
 int main() {
+    std::cout <<"sir de paranteze = ";
+    std::cin >> paranteze;
+
+	bool acolada, patrata;
+    
+	for (int i = 0; i < paranteze.size(); i++) {
+		if (paranteze[i] == '{') {
+			stiva.push('{');
+		}
+		else if (paranteze[i] == '[') {
+			stiva.push('[');
+		}
+		else if (paranteze[i] == '(')
+			stiva.push('(');
+
+		else {
+            if (paranteze[i] == ')' || paranteze[i] == ']' || paranteze[i] == '}') {
+                if(!stiva.empty()){
+                    stiva.pop();
+                }
+                else {
+                    std::cout<<"prea multe paranteze deschise \n";
+                    ok=0;
+                    break;
+                }
+            }
+        }
+    }
+
+    if (ok && stiva.empty()) {
+        std::cout << "toate sunt închise";
+    }
+    else {
+        std::cout << "nu sunt închise";
+    }
+
 	return 0;
+
 }