make scream smaller

c/scream.c

@@ -5,30 +5,18 @@
  * good night and good riddance */
 
 char newchar(char c, int i) {
-  switch(i) {
-    case 0:
-      if(isupper(c)) return c + 32;
-      if(c == 33) return -2;
-      else return c;
-    case 1:
-      if(islower(c)) return c - 32;
-      if(c == 33) return -2;
-      else return c;
-    default: return -1;
-  }
-}
-int advi(int i) {
-  switch(i) {
-    case 0: return 1;
-    case 1: return 0;
-    default: return -1;
-  }
+  if(i % 2) {
+    if(islower(c)) return c - 32;
+  } else if(isupper(c)) return c + 32;
+  if(c == 33) return -2;
+  return c;
 }
 int main(void) {
   char c;
-  int i = 0;
+  int i;
+  i = 0;
   while((c = getchar()) != EOF) {
     putchar(newchar(c, i));
-    i = advi(i);
+    i++;
   }
 }