From 1bea0762e334a094b0d5daefbc1f59eaf3649f33 Mon Sep 17 00:00:00 2001 From: Your Name Date: Thu, 16 Oct 2025 02:46:16 +0200 Subject: [PATCH] funguje --- du3/program.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/du3/program.c b/du3/program.c index 11720c4..e931095 100644 --- a/du3/program.c +++ b/du3/program.c @@ -89,6 +89,11 @@ int main() char input[1000]; while (fgets(input,sizeof(input),stdin)!=NULL) { + if((input[0]>'A' && input[0]<'Z') || (input[0]>'a' && input[0]<'z')) + { + printf("bad input\n"); + return 0; + } int flag=switch_operators(input); input[strcspn(input,"\n")]=0; if (strlen(input)==0 || input[0]==' ')