Lesson 2.

02/Experiment1-2.c

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+#include <stdio.h>
+int main() {
+    int x1, x2; // Define two integers; uses 4 bytes each.
+    unsigned y; // Define an unsigned integer; uses 4 bytes.
+    char c1, c2; // Define two charater; uses 1 bytes each.
+    x1 = 65535;
+    x2 = x1 + 5;
+    printf("Enter y: ");
+    scanf("%u", &y); // Read y from user input
+    c1 = 97;
+    c2 = 'A';
+    c2 = c2 + 32; //Change the value of c2, using c2 itself.
+    printf("x1=%d\n", x1);
+    printf("x2=%d\n",x2);
+    printf("y=%u\n",(y+15)); // Calculate y + 15, and then output it
+    printf("c1=%c\n",c1);
+    printf("c2=%c\n",c2);
+    return 0;
+}