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
|
#include <stdio.h>
#include <time.h>
#include <stc/cvec.h>
#include <stc/cpque.h>
#include <stc/cmap.h>
#include <stc/crandom.h>
using_cvec(i, int64_t);
using_cpque(i, cvec_i, -c_default_compare); // min-heap (increasing values)
int main() {
size_t N = 10000000;
stc64_t rng = stc64_init(time(NULL));
stc64_uniform_t dist = stc64_uniform_init(0, N * 10);
c_withvar (cpque_i, heap)
{
// Push ten million random numbers to priority queue
c_forrange (N)
cpque_i_push(&heap, stc64_uniform(&rng, &dist));
// push some negative numbers too.
c_emplace(cpque_i, heap, {-231, -32, -873, -4, -343});
c_forrange (N)
cpque_i_push(&heap, stc64_uniform(&rng, &dist));
// Extract the hundred smallest.
c_forrange (100) {
printf("%zd ", *cpque_i_top(&heap));
cpque_i_pop(&heap);
}
}
}
|
