Code cleanup

sd.c

@@ -17,7 +17,7 @@ int main(int argc, char* argv[]) {
 		{"file",    required_argument, NULL, 'f'},
 		{"verbose", no_argument,       NULL, 'v'}
 	};
-	while (1) {
+	while (true) {
 		int option_index = 0;
 		int c = getopt_long(argc, argv, "f:v", long_options, &option_index);
 		if (c == -1) break;
@@ -86,15 +86,9 @@ int main(int argc, char* argv[]) {
 
 		/* Read user input */
 		b = getchar();
-		if (b == 'y') {
-			w >>= 1;
-		}
-		else if (b == 'n') {
-			w <<= 3;
-		}
-		else {
-			break;
-		}
+		if (b == 'y') w >>= 1;
+		else if (b == 'n') w <<= 3;
+		else break;
 
 		/* Update segment tree and database */
 		update(i, w, 0, N - 1, 1);