From bfc1f13969fb41d6e7748b9b4289e21f9552ca22 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Vl=C4=8Dek?= <tomas.vlcek@student.tuke.sk>
Date: Wed, 18 Mar 2026 22:32:48 +0000
Subject: [PATCH] Aktualizovat du3/program.c

---
 du3/program.c | 114 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 113 insertions(+), 1 deletion(-)

diff --git a/du3/program.c b/du3/program.c
index 6183771..2bc685a 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -1,6 +1,118 @@
 #include <stdlib.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+#define SIZE 128
+
+//kontrola, ze ci vycitane informacie su aritmeticky spravne
+bool IsArithmeticallyCorrect(int num1, int num2, char* op)
+{
+    if (num2 ==)
+
+    switch (op)
+    {
+        case '-'
+        if ((num1-num2) == resultTemp) { return true;}
+
+        case '+'
+        if ((num1-num2) == resultTemp) { return true;}
+
+        case '*'
+        if ((num1*num2) == resultTemp) { return true;}
+
+        case '/'
+        if ((num1-num2) == resultTemp) { return true;}
+    }
+
+    return true;
+
+
+    //ak dopasovany arit. operator NIE je platny (resp ide o systematicku chybu, nie aritmeticku), vrati 0
+    return false;
+}
 
 int main()
 {
+    char line[SIZE];
+    line[0] = '\0';
+    char strBuffer[SIZE];
+
+
+    while (fgets(line, SIZE, stdin) != NULL)
+    {
+        if (sscantf(line, "%127[^\n]", strBuffer) == 1)
+        {
+            bool isLineInvalid = false;
+            int x = 0;
+            //docasne 'char' premeny
+            char num1Temp[10], num2Temp[10], resultTemp[10];
+            num1Temp[0] = '\0';
+            num2Temp[0] = '\0';
+            resultTemp[0] = '\0';
+            int writeIntoArrayNum = 1; // kontrolna premena na urcovanie toho, kde sa ma zapisovat obsah (1 == num1, 2 = num2, 3 = vysledok)
+
+            char op1 = 'N';  //N = 'nothing/nic'
+
+            for (int i = 0; i != '\0'; i++)
+            {
+                if (isdigit(i) != 0) 
+                {
+                    //skontroluj, ze ci char po nom je tiez cislo, AK NIE, povazuj buduce cisla v riadku ako ine cislo 
+                    // a inkrementuj kontrolnu citaciu premenu
+                    if (isdigit(i+1) != 0) 
+                    {
+                        writeIntoArrayNum += 1;
+                    }
+
+                    switch (writeIntoArrayNum)
+                        case 1:
+                        strncat(num1Temp, i, 1);
+                        break;
+
+                        case 2:
+                        strncat(num2Temp, i, 2);
+                        break;
+
+                        case 3:
+                        strncat(resultTemp, i, 3);
+                        break;
+                    }
+
+                    continue;
+                }
+                if (ispunct() != 0)
+                {
+                    //ak je to nejaky printable symbol ('*/-,:./), skontroluj ci to nie je artimeticke znamienko,
+                    //AK NIE, povazuj za riadok neplatny...
+                    if (i == '+' || i == '-' || i == '/' i == '*')
+                    {
+                        op1 = i;
+                    }
+                    else
+                    {
+                        isLineInvalid = true;
+                        break;
+                    }
+                    
+                    continue;
+                }
+                if (isalpha(i) != 0)
+                {
+                    isLineInvalid = true;
+                    break;
+                }
+            }
+
+        }
+
+    
+    int vysledok = calcResult(atoi(num1Temp),atoi(num2Temp), op1);
+
+
+    if (isLineInvalid || vysledok == 0)
+    {
+        printf("CHYBA");
+    }
+
     return 0;
-}
\ No newline at end of file
+}