1 files changed, 46 insertions, 0 deletions
diff --git a/homework/81350/parser/stack.c b/homework/81350/parser/stack.c
new file mode 100644
index 0000000..a051f7a
--- /dev/null
+++ b/homework/81350/parser/stack.c
@@ -0,0 +1,46 @@
+#include "stack.h"
+
+int stack[MAXSIZE];
+int top = -1;
+
+int isempty() {
+
+   if(top == -1)
+      return 1;
+   else
+      return 0;
+}
+
+int isfull() {
+
+   if(top == MAXSIZE)
+      return 1;
+   else
+      return 0;
+}
+
+int peek() {
+   return stack[top];
+}
+
+int pop() {
+   int data;
+
+   if(!isempty()) {
+      data = stack[top];
+      top = top - 1;
+      return data;
+   } else {
+      printf("Could not retrieve data, Stack is empty.\n");
+   }
+}
+
+int push(int data) {
+
+   if(!isfull()) {
+      top = top + 1;
+      stack[top] = data;
+   } else {
+      printf("Could not insert data, Stack is full.\n");
+   }
+}