sem 16

2 files changed, 18 insertions, 3 deletions

diff --git a/Sem. 16/LogicExpressions/LogicExpr.h b/Sem. 16/LogicExpressions/LogicExpressions/LogicExpr.h
index ebb84b4..9188541 100644
--- a/Sem. 16/LogicExpressions/LogicExpr.h
+++ b/Sem. 16/LogicExpressions/LogicExpressions/LogicExpr.h
@@ -123,7 +123,7 @@ namespace LogicExpressions
 		return std::move(current);
 	}
 
-	bool CheckValues(LogicExpr* expr, const std::vector<char>& vars, bool value)
+	bool CheckValues(const LogicExpr* expr, const std::vector<char>& vars, bool value)
 	{
 		size_t checksCounts = 1 << vars.size();
 
@@ -137,12 +137,12 @@ namespace LogicExpressions
 		return true;
 	}
 
-	bool isTautology(LogicExpr* expr, const std::vector<char>& vars)
+	bool isTautology(const LogicExpr* expr, const std::vector<char>& vars)
 	{
 		return CheckValues(expr, vars, true);
 	}
 
-	bool isContradiction(LogicExpr* expr, const std::vector<char>& vars)
+	bool isContradiction(const LogicExpr* expr, const std::vector<char>& vars)
 	{
 		return CheckValues(expr, vars, false);
 	}
diff --git a/Sem. 16/LogicExpressions/Source.cpp b/Sem. 16/LogicExpressions/Source.cpp
new file mode 100644
index 0000000..2b810b8
--- /dev/null
+++ b/Sem. 16/LogicExpressions/Source.cpp
@@ -0,0 +1,15 @@
+#include "LogicExpressions/LogicExpr.h"
+
+using namespace LogicExpressions;
+
+
+int main()
+{
+	LogicExpr* expr = new Operation(new Var('p'), '|', new Negation(new Var('p'))); // p & !p
+	expr->print();
+	cout << " " << isTautology(expr, { 'p' }) << endl;
+
+	LogicExpr* expr2 = new Operation(new Var('q'),'^',new Operation(new Var('p'), '^', new Negation(new Var('p')))); // q ^ (p ^ !p)
+	expr2->print();
+	cout << " " << isContradiction(expr2, { 'p', 'q' });
+}
\ No newline at end of file