funguje

cv1/program.c

@@ -0,0 +1,29 @@
+#include <stdio.h>
+
+
+
+int main(){
+
+printf("Enter the  text, please: ");
+
+int c;
+while(( c = getchar()) != EOF){
+if( c >= 'a' && c <= 'z'){
+    c = c - 32;
+}else if( c >= 'A' && c <= 'Z'){
+    c = c + 32;
+}
+    if(c != '\n'){
+        if(c >= 32 && c <=126){
+            putchar(c);
+        }
+        }else{
+            putchar('\n');
+        }
+    
+}
+        
+    return 0;
+}
+
+