1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
#include <stdio.h>
#include <time.h>
#include <stc/crandom.h>
#define i_val int64_t
#define i_cmp -c_default_cmp // min-heap (increasing values)
#define i_tag i
#include <stc/cpque.h>
int main() {
intptr_t N = 10000000;
stc64_t rng = stc64_new((uint64_t)time(NULL));
stc64_uniform_t dist = stc64_uniform_new(0, N * 10);
c_auto (cpque_i, heap)
{
// Push ten million random numbers to priority queue
printf("Push %" c_ZI " numbers\n", N);
c_forrange (N)
cpque_i_push(&heap, stc64_uniform(&rng, &dist));
// push some negative numbers too.
c_forlist (i, int, {-231, -32, -873, -4, -343})
cpque_i_push(&heap, *i.ref);
c_forrange (N)
cpque_i_push(&heap, stc64_uniform(&rng, &dist));
puts("Extract the hundred smallest.");
c_forrange (100) {
printf("%" PRId64 " ", *cpque_i_top(&heap));
cpque_i_pop(&heap);
}
}
}
|