Initial data commit

Task/Priority-queue/C/priority-queue-4.c

@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "pairheap.h"
+
+struct task {
+    pq_node_t hd;
+    char task[40];
+};
+
+void main() {
+    heap_t heap = NULL;
+    struct task *new;
+
+    HEAP_PUSH(new, 3, &heap);
+    strcpy(new->task, "Clear drains.");
+
+    HEAP_PUSH(new, 4, &heap);
+    strcpy(new->task, "Feed cat.");
+
+    HEAP_PUSH(new, 5, &heap);
+    strcpy(new->task, "Make tea.");
+
+    HEAP_PUSH(new, 1, &heap);
+    strcpy(new->task, "Solve RC tasks.");
+
+    HEAP_PUSH(new, 2, &heap);
+    strcpy(new->task, "Tax return.");
+
+    while (heap != NULL) {
+        struct task *top = (struct task *) heap;
+        printf("%s\n", top->task);
+        heap = heap_pop(heap);
+        free(top);
+    }
+}