From f8efe6e3862c0a5635d13c93209d78d55850e75b Mon Sep 17 00:00:00 2001
From: Denis Landa <denis.landa@student.tuke.sk>
Date: Thu, 16 Oct 2025 17:25:01 +0000
Subject: [PATCH] Update du3/program.c

---
 du3/program.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/du3/program.c b/du3/program.c
index 490e9fd..8a5a40d 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -18,7 +18,7 @@ void print_stack(struct stack *s) {
 
 void push_stack(struct stack *s, float value) {
    if (s->size >= STACK_SIZE) {
-      printf("full stack\n");
+      printf("no input\n");
       exit(0);
    }
    s->values[s->size] = value;
@@ -27,7 +27,7 @@ void push_stack(struct stack *s, float value) {
 
 float pop_stack(struct stack *s) {
    if (s->size <= 0) {
-      printf("not enough operands\n");
+      printf("no input\n");
       exit(0);
    }
    s->size--;
@@ -45,7 +45,7 @@ int main() {
           strcmp(input, "*") == 0 || strcmp(input, "/") == 0) {
 
          if (s.size < 2) {
-            printf("not anough operands\n");
+            printf("no input\n");
             exit(0);
          }
 
@@ -53,6 +53,11 @@ int main() {
          float a = pop_stack(&s);
          float result;
 
+         if (strcmp(input, "/") == 0 && b == 0) {
+            printf("division by zero\n");
+            exit(0);
+         }
+
          if (strcmp(input, "+") == 0) result = a + b;
          else if (strcmp(input, "-") == 0) result = a - b;
          else if (strcmp(input, "*") == 0) result = a * b;
@@ -65,14 +70,14 @@ int main() {
          char *endptr;
          float val = strtof(input, &endptr);
          if (*endptr != '\0') {
-            printf("division by zero\n");
+            printf("no input\n");
             exit(0);
          }
          push_stack(&s, val);
          print_stack(&s);
       }
    }
-   printf("no input\n");
 
+   printf("no input\n");
    return 0;
 }