more tests

demo/queen.c

@@ -30,6 +30,7 @@ void queen(int x) {
     if (x > 8) {
         output();
         a[0]++;
+        return;
     }
     for (int y = 1; y <= 8; ++y) {
         if (ok(x, y)) {

demo/sort.c

@@ -0,0 +1,36 @@
+int printf(char* format, ...);
+int scanf(char* format, ...);
+int exit(int status);
+
+void swap(int* a, int* b) {
+    int t = *a;
+    *a = *b;
+    *b = t;
+}
+
+void sort(int a[], int n) {
+    for (int i = 0; i < n; i++) {
+        for (int j = i + 1; j < n; j++) {
+            if (a[i] > a[j]) {
+                swap(&a[i], &a[j]);
+            }
+        }
+    }
+}
+
+int a[100];
+int n;
+
+int main() {
+    printf("Enter the number of elements: ");
+    scanf("%d", &n);
+    printf("Enter %d integers: ", n);
+    for (int i = 0; i < n; i++) {
+        scanf("%d", &a[i]);
+    }
+    sort(a, n);
+    for (int i = 0; i < n; i++) {
+        printf("%d ", a[i]);
+    }
+    printf("\n");
+}