#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 /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int n, i = 1, deno = 2;
  printf("Informe o limite: ");
  scanf("%d", &n);
  if (n != 0) {
    printf("1\n");
    while (i < n) {
      if (deno % 2 == 0)
        printf("-1/%d\n", deno);
      else
        printf("1/%d\n", deno);
      deno++;
      i++;
    }
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x1,-0xc(%rbp)
movl   $0x2,-0x10(%rbp)
lea    0xebc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec1(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
cmpl   $0x0,-0x8(%rbp)
je     11d6 <main+0xb6>
lea    0xeaa(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    11d1 <main+0xb1>
mov    -0x10(%rbp),%eax
mov    $0x2,%ecx
cltd
idiv   %ecx
cmp    $0x0,%edx
jne    11a9 <main+0x89>
mov    -0x10(%rbp),%esi
lea    0xe7c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11ba <main+0x9a>
mov    -0x10(%rbp),%esi
lea    0xe67(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1173 <main+0x53>
jmp    11d6 <main+0xb6>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x10,%rsp
lea    0xec0(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec5(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1050 <scanf@plt>
cmpl   $0x0,0xc(%rsp)
je     11ae <main+0x7e>
lea    0xeb7(%rip),%rdi
call   1030 <puts@plt>
cmpl   $0x2,0xc(%rsp)
jl     11ae <main+0x7e>
mov    $0x2,%ebx
lea    0xe98(%rip),%r14
lea    0xe92(%rip),%r15
cs nopw 0x0(%rax,%rax,1)
nop
test   $0x1,%bl
mov    %r15,%rdi
cmove  %r14,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x1(%rbx),%eax
cmp    0xc(%rsp),%ebx
mov    %eax,%ebx
jl     1190 <main+0x60>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [19 x i8] c"Informe o limite: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [3 x i8] c"1\0A\00"
@.str.3 = [7 x i8] c"-1/%d\0A\00"
@.str.4 = [6 x i8] c"1/%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
store i32 1, i32* %3
store i32 2, i32* %4
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%7 = load i32, i32* %2
%8 = icmp ne i32 %7, 0
br i1 %8, label %9, label %31
9: ; preds = %0
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %11
11: ; preds = %25, %9
%12 = load i32, i32* %3
%13 = load i32, i32* %2
%14 = icmp slt i32 %12, %13
br i1 %14, label %15, label %30
15: ; preds = %11
%16 = load i32, i32* %4
%17 = srem i32 %16, 2
%18 = icmp eq i32 %17, 0
br i1 %18, label %19, label %22
19: ; preds = %15
%20 = load i32, i32* %4
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i32 %20)
br label %25
22: ; preds = %15
%23 = load i32, i32* %4
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i32 %23)
br label %25
25: ; preds = %22, %19
%26 = load i32, i32* %4
%27 = add nsw i32 %26, 1
store i32 %27, i32* %4
%28 = load i32, i32* %3
%29 = add nsw i32 %28, 1
store i32 %29, i32* %3
br label %11
30: ; preds = %11
br label %31
31: ; preds = %30, %0
ret i32 0
}

LLVM IR (-O2):
@.str = [19 x i8] c"Informe o limite: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.3 = [7 x i8] c"-1/%d\0A\00"
@.str.4 = [6 x i8] c"1/%d\0A\00"
@str = [2 x i8] c"1\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%5 = load i32, i32* %1
%6 = icmp eq i32 %5, 0
br i1 %6, label %22, label %7
7: ; preds = %0
%8 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([2 x i8], [2 x i8]* @str, i64 0, i64 0))
%9 = load i32, i32* %1
%10 = icmp sgt i32 %9, 1
br i1 %10, label %11, label %22
11: ; preds = %7, %11
%12 = phi i32 [ %18, %11 ], [ 2, %7 ]
%13 = phi i32 [ %19, %11 ], [ 1, %7 ]
%14 = and i32 %12, 1
%15 = icmp eq i32 %14, 0
%16 = select i1 %15, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0)
%17 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) %16, i32 %12)
%18 = add nuw nsw i32 %12, 1
%19 = add nuw nsw i32 %13, 1
%20 = load i32, i32* %1
%21 = icmp slt i32 %19, %20
br i1 %21, label %11, label %22
22: ; preds = %11, %7, %0
ret i32 0
}