Initial commit with cleaned history

2023 CS50X/arrays/Source/uppercase1.c

@@ -0,0 +1,24 @@
+// Uppercases string using ctype library (and an unnecessary condition)
+
+#include <cs50.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+int main(void)
+{
+    string s = get_string("Before: ");
+    printf("After:  ");
+    for (int i = 0, n = strlen(s); i < n; i++)
+    {
+        if (islower(s[i]))
+        {
+            printf("%c", toupper(s[i]));
+        }
+        else
+        {
+            printf("%c", s[i]);
+        }
+    }
+    printf("\n");
+}