#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 */

/* Variables and functions */
int choose(int, int);
int /*<<< orphan*/ printf(char *, int);
int main(void) {
  printf("number of pairs in a 5-unique card hand = %d\n", choose(5, 2));
  printf("number of 5-card poker hands = %d\n", choose(52, 5));
  printf("number of 5-card poker hands "
         "with at least one pair = %d\n",
         13 * choose(4, 2) * choose(50, 3));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    $0x5,%edi
mov    $0x2,%esi
call   1030 <choose@plt>
mov    %eax,%esi
lea    0xeb9(%rip),%rdi
call   1040 <printf@plt>
mov    $0x34,%edi
mov    $0x5,%esi
call   1030 <choose@plt>
mov    %eax,%esi
lea    0xeca(%rip),%rdi
call   1040 <printf@plt>
mov    $0x4,%edi
mov    $0x2,%esi
call   1030 <choose@plt>
imul   $0xd,%eax,%eax
mov    %eax,-0x8(%rbp)
mov    $0x32,%edi
mov    $0x3,%esi
call   1030 <choose@plt>
mov    -0x8(%rbp),%esi
imul   %eax,%esi
lea    0xeb7(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    $0x5,%edi
mov    $0x2,%esi
call   1030 <choose@plt>
lea    0xec9(%rip),%rdi
mov    %eax,%esi
call   1040 <printf@plt>
mov    $0x34,%edi
mov    $0x5,%esi
call   1030 <choose@plt>
lea    0xeda(%rip),%rdi
mov    %eax,%esi
call   1040 <printf@plt>
mov    $0x4,%edi
mov    $0x2,%esi
call   1030 <choose@plt>
mov    %eax,%ebx
mov    $0x32,%edi
mov    $0x3,%esi
call   1030 <choose@plt>
imul   %ebx,%eax
lea    (%rax,%rax,2),%ecx
lea    (%rax,%rcx,4),%esi
lea    0xec6(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [46 x i8] c"number of pairs in a 5-unique card hand = %d\0A\00"
@.str.1 = [35 x i8] c"number of 5-card poker hands = %d\0A\00"
@.str.2 = [58 x i8] c"number of 5-card poker hands with at least one pair = %d\0A\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @choose(i32 5, i32 2)
%3 = call i32 @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str, i64 0, i64 0), i32 %2)
%4 = call i32 @choose(i32 52, i32 5)
%5 = call i32 @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.1, i64 0, i64 0), i32 %4)
%6 = call i32 @choose(i32 4, i32 2)
%7 = mul nsw i32 13, %6
%8 = call i32 @choose(i32 50, i32 3)
%9 = mul nsw i32 %7, %8
%10 = call i32 @printf(i8* getelementptr inbounds ([58 x i8], [58 x i8]* @.str.2, i64 0, i64 0), i32 %9)
ret i32 0
}

LLVM IR (-O2):
@.str = [46 x i8] c"number of pairs in a 5-unique card hand = %d\0A\00"
@.str.1 = [35 x i8] c"number of 5-card poker hands = %d\0A\00"
@.str.2 = [58 x i8] c"number of 5-card poker hands with at least one pair = %d\0A\00"
define i32 @main() {
%1 = tail call i32 @choose(i32 5, i32 2)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str, i64 0, i64 0), i32 %1)
%3 = tail call i32 @choose(i32 52, i32 5)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = tail call i32 @choose(i32 4, i32 2)
%6 = mul nsw i32 %5, 13
%7 = tail call i32 @choose(i32 50, i32 3)
%8 = mul nsw i32 %6, %7
%9 = tail call i32 @printf(i8* getelementptr inbounds ([58 x i8], [58 x i8]* @.str.2, i64 0, i64 0), i32 %8)
ret i32 0
}