#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */
typedef int /*<<< orphan*/ arr;

/* Variables and functions */
int /*<<< orphan*/ getchar();
int /*<<< orphan*/ partition(int *, int /*<<< orphan*/, int);
int /*<<< orphan*/ printf(char *, ...);
int main(void) {
  int i, arr[] = {9,  2,  6,  5,  8, 1,  7,  4,  3, 12,
                  55, 98, 22, 30, 0, 14, 87, 59, 33};
  int size = sizeof(arr) / sizeof(arr[0]);
  printf("Unsorted: ");
  for (i = 0; i < size; i++) {
    printf("%d ", arr[i]);
  }
  printf("\n");
  partition(arr, 0, size - 1);
  printf("\n\nSorted:   ");
  for (i = 0; i < size; i++) {
    printf("%d ", arr[i]);
  }
  getchar();
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x70,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x60(%rbp),%rdi
lea    0xea6(%rip),%rsi
mov    $0x4c,%edx
call   1060 <memcpy@plt>
movl   $0x13,-0x64(%rbp)
lea    0xeda(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%eax
cmp    -0x64(%rbp),%eax
jge    11b0 <main+0x70>
movslq -0x8(%rbp),%rax
mov    -0x60(%rbp,%rax,4),%esi
lea    0xebc(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1180 <main+0x40>
lea    0xea4(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    -0x60(%rbp),%rdi
mov    -0x64(%rbp),%edx
sub    $0x1,%edx
xor    %esi,%esi
call   1030 <partition@plt>
lea    0xe87(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%eax
cmp    -0x64(%rbp),%eax
jge    1214 <main+0xd4>
movslq -0x8(%rbp),%rax
mov    -0x60(%rbp,%rax,4),%esi
lea    0xe58(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    11e4 <main+0xa4>
mov    $0x0,%al
call   1050 <getchar@plt>
xor    %eax,%eax
add    $0x70,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x50,%rsp
movups 0xef0(%rip),%xmm0
movups %xmm0,0x3c(%rsp)
movaps 0xed8(%rip),%xmm0
movaps %xmm0,0x30(%rsp)
movaps 0xebc(%rip),%xmm0
movaps %xmm0,0x20(%rsp)
movaps 0xea0(%rip),%xmm0
movaps %xmm0,0x10(%rsp)
movaps 0xe84(%rip),%xmm0
movaps %xmm0,(%rsp)
lea    0xec5(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xec2(%rip),%rbx
mov    %rbx,%rdi
mov    $0x9,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x6,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x5,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x8,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x1,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x7,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x4,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x3,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0xc,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x37,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x62,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x16,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x1e,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
xor    %esi,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0xe,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x57,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x3b,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x21,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    %rsp,%rdi
xor    %esi,%esi
mov    $0x12,%edx
call   1040 <partition@plt>
lea    0xd8c(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    (%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x4(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x8(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0xc(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x10(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x14(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x18(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x1c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x20(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x24(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x28(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x2c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x30(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x34(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x38(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x3c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x40(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x44(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    0x48(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
xor    %eax,%eax
call   1060 <getchar@plt>
xor    %eax,%eax
add    $0x50,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@__const.main.arr = [19 x i32] [i32 9, i32 2, i32 6, i32 5, i32 8, i32 1, i32 7, i32 4, i32 3, i32 12, i32 55, i32 98, i32 22, i32 30, i32 0, i32 14, i32 87, i32 59, i32 33]
@.str = [11 x i8] c"Unsorted: \00"
@.str.1 = [4 x i8] c"%d \00"
@.str.2 = [2 x i8] c"\0A\00"
@.str.3 = [13 x i8] c"\0A\0ASorted: \00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca [19 x i32]
%4 = alloca i32
store i32 0, i32* %1
%5 = bitcast [19 x i32]* %3 to i8*
store i32 19, i32* %4
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0))
store i32 0, i32* %2
br label %7
7: ; preds = %17, %0
%8 = load i32, i32* %2
%9 = load i32, i32* %4
%10 = icmp slt i32 %8, %9
br i1 %10, label %11, label %20
11: ; preds = %7
%12 = load i32, i32* %2
%13 = sext i32 %12 to i64
%14 = getelementptr inbounds [19 x i32], [19 x i32]* %3, i64 0, i64 %13
%15 = load i32, i32* %14
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %15)
br label %17
17: ; preds = %11
%18 = load i32, i32* %2
%19 = add nsw i32 %18, 1
store i32 %19, i32* %2
br label %7
20: ; preds = %7
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
%22 = getelementptr inbounds [19 x i32], [19 x i32]* %3, i64 0, i64 0
%23 = load i32, i32* %4
%24 = sub nsw i32 %23, 1
%25 = call i32 @partition(i32* %22, i32 0, i32 %24)
%26 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0))
store i32 0, i32* %2
br label %27
27: ; preds = %37, %20
%28 = load i32, i32* %2
%29 = load i32, i32* %4
%30 = icmp slt i32 %28, %29
br i1 %30, label %31, label %40
31: ; preds = %27
%32 = load i32, i32* %2
%33 = sext i32 %32 to i64
%34 = getelementptr inbounds [19 x i32], [19 x i32]* %3, i64 0, i64 %33
%35 = load i32, i32* %34
%36 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %35)
br label %37
37: ; preds = %31
%38 = load i32, i32* %2
%39 = add nsw i32 %38, 1
store i32 %39, i32* %2
br label %27
40: ; preds = %27
%41 = call i32 (...) @getchar()
ret i32 0
}

LLVM IR (-O2):
@__const.main.arr = [19 x i32] [i32 9, i32 2, i32 6, i32 5, i32 8, i32 1, i32 7, i32 4, i32 3, i32 12, i32 55, i32 98, i32 22, i32 30, i32 0, i32 14, i32 87, i32 59, i32 33]
@.str = [11 x i8] c"Unsorted: \00"
@.str.1 = [4 x i8] c"%d \00"
@.str.3 = [13 x i8] c"\0A\0ASorted: \00"
define i32 @main() {
%1 = alloca [19 x i32]
%2 = bitcast [19 x i32]* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0))
%4 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 0
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 9)
%6 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 1
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 2)
%8 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 2
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 6)
%10 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 3
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 5)
%12 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 4
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 8)
%14 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 5
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 1)
%16 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 6
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 7)
%18 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 7
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 4)
%20 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 8
%21 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 3)
%22 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 9
%23 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 12)
%24 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 10
%25 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 55)
%26 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 11
%27 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 98)
%28 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 12
%29 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 22)
%30 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 13
%31 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 30)
%32 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 14
%33 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 0)
%34 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 15
%35 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 14)
%36 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 16
%37 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 87)
%38 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 17
%39 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 59)
%40 = getelementptr inbounds [19 x i32], [19 x i32]* %1, i64 0, i64 18
%41 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 33)
%42 = tail call i32 @putchar(i32 10)
%43 = call i32 @partition(i32* %4, i32 0, i32 18)
%44 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0))
%45 = load i32, i32* %4
%46 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %45)
%47 = load i32, i32* %6
%48 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %47)
%49 = load i32, i32* %8
%50 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %49)
%51 = load i32, i32* %10
%52 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %51)
%53 = load i32, i32* %12
%54 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %53)
%55 = load i32, i32* %14
%56 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %55)
%57 = load i32, i32* %16
%58 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %57)
%59 = load i32, i32* %18
%60 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %59)
%61 = load i32, i32* %20
%62 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %61)
%63 = load i32, i32* %22
%64 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %63)
%65 = load i32, i32* %24
%66 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %65)
%67 = load i32, i32* %26
%68 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %67)
%69 = load i32, i32* %28
%70 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %69)
%71 = load i32, i32* %30
%72 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %71)
%73 = load i32, i32* %32
%74 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %73)
%75 = load i32, i32* %34
%76 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %75)
%77 = load i32, i32* %36
%78 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %77)
%79 = load i32, i32* %38
%80 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %79)
%81 = load i32, i32* %40
%82 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %81)
%83 = call i32 (...) @getchar()
ret i32 0
}