diff --git a/ex00/BitcoinExchange.cpp b/ex00/BitcoinExchange.cpp
index 5053d88..5132cb6 100644
--- a/ex00/BitcoinExchange.cpp
+++ b/ex00/BitcoinExchange.cpp
@@ -158,7 +158,7 @@ void	BitcoinExchange::str(std::string filename)
 			std::cout << "Error: bad input => " << line << std::endl;
 			continue ;
 		}
-		if (std::atol(value_str.c_str()) > 2147483647)
+		if (std::atol(value_str.c_str()) > 1000)
 		{
 			std::cout << "Error: too large a number." << std::endl;
 			continue ;
diff --git a/ex01/RPN.cpp b/ex01/RPN.cpp
index ca35609..d1cd8c9 100644
--- a/ex01/RPN.cpp
+++ b/ex01/RPN.cpp
@@ -15,10 +15,10 @@ typedef int (*OperatorFunctions)(int, int);
 void rpn(char *av)
 {
 	OperatorFunctions calc[128] = { NULL };
-	calc['+'] = &add;
-	calc['-'] = &subst;
-	calc['*'] = &mult;
-	calc['/'] = &div;
+	calc[(int) '+'] = &add;
+	calc[(int) '-'] = &subst;
+	calc[(int) '*'] = &mult;
+	calc[(int) '/'] = &div;
 
 	std::istringstream	ss_input((std::string(av)));
 	std::stack<int>		stack;