move exercises and lectures into subfolders

Exercises/C7/Scanf2/scanf_example_2.c

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+#include <stdio.h>
+
+int main(void)
+{
+    // Declare some variables
+    int a,b,c;
+    float f,g;
+
+    // Use printf to prompt the use to enter 3 integers
+    printf ("Please enter three integer\n");
+    
+    // use scanf with %d to read into a, b and c
+    scanf ("%d %d %d",&a, &b, &c);	// note the important & 
+    
+    // And display on the screen
+    printf ("The values entered were %d %d %d\n", a, b, c);
+    
+	// Use printf to prompt the use to enter an float
+    printf ("Please enter two floats\n");
+    
+	// use scanf with %f to read into f ang g
+    scanf ("%f %f",&f, &g);  // note the important & 
+    
+	// And display on the screen
+    printf ("The value you entered were %f and %f \n", f,g);
+    
+    return 0;	// Exit from main
+}