From 796872c41c00f27a4c331289d4536174409ca4a6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jakub=20Frankovi=C4=8D?= <jakub.frankovic.2@student.tuke.sk>
Date: Sat, 21 Feb 2026 14:12:35 +0100
Subject: [PATCH] Initial commit

---
 a1/program.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 a1/program.c

diff --git a/a1/program.c b/a1/program.c
new file mode 100644
index 0000000..f0b4a3e
--- /dev/null
+++ b/a1/program.c
@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <ctype.h>
+
+int main() {
+    int c;
+    int lines = 0;
+
+    while ((c = getchar()) != EOF) {
+        if (islower(c)) {
+            putchar(toupper(c));
+        } else if (isupper(c)) {
+            putchar(tolower(c));
+        } else if (c == '\n') {
+            putchar(c);
+            lines++;
+        } else if (isprint(c)) {
+            putchar(c);
+        }
+    }
+
+    printf("\nRiadky: %d\n", lines);
+    return 0;
+}
\ No newline at end of file