#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 *);
main() {
  int kv = 0, i, N;
  printf("Введите N:");
  scanf("%d", &N);
  for (i = 1; i <= 2 * N - 1; i += 2)
    kv += i;
  printf("%d", kv);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
lea    0xec3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec7(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
movl   $0x1,-0xc(%rbp)
mov    -0xc(%rbp),%eax
mov    -0x10(%rbp),%ecx
shl    $0x1,%ecx
sub    $0x1,%ecx
cmp    %ecx,%eax
jg     1186 <main+0x66>
mov    -0xc(%rbp),%eax
add    -0x8(%rbp),%eax
mov    %eax,-0x8(%rbp)
mov    -0xc(%rbp),%eax
add    $0x2,%eax
mov    %eax,-0xc(%rbp)
jmp    115b <main+0x3b>
mov    -0x8(%rbp),%esi
lea    0xe82(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rdi
xor    %ebx,%ebx
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xed6(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1040 <scanf@plt>
mov    0xc(%rsp),%eax
test   %eax,%eax
jle    1172 <main+0x52>
add    %eax,%eax
cmp    $0x4,%eax
mov    $0x3,%ecx
cmovge %eax,%ecx
add    $0xfffffffe,%ecx
shr    %ecx
lea    (%rcx,%rcx,2),%eax
lea    -0x1(%rcx),%edx
imul   %ecx,%edx
and    $0xfffffffe,%edx
lea    (%rdx,%rax,1),%ebx
add    $0x1,%ebx
lea    0xe99(%rip),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [18 x i8] c"\D0\92\D0\B2\D0\B5\D0\B4\D0\B8\D1\82\D0\B5 N:\00"
@.str.1 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 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* %4)
store i32 1, i32* %3
br label %7
7: ; preds = %17, %0
%8 = load i32, i32* %3
%9 = load i32, i32* %4
%10 = mul nsw i32 2, %9
%11 = sub nsw i32 %10, 1
%12 = icmp sle i32 %8, %11
br i1 %12, label %13, label %20
13: ; preds = %7
%14 = load i32, i32* %3
%15 = load i32, i32* %2
%16 = add nsw i32 %15, %14
store i32 %16, i32* %2
br label %17
17: ; preds = %13
%18 = load i32, i32* %3
%19 = add nsw i32 %18, 2
store i32 %19, i32* %3
br label %7
20: ; preds = %7
%21 = load i32, i32* %2
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %21)
ret i32 0
}

LLVM IR (-O2):
@.str = [18 x i8] c"\D0\92\D0\B2\D0\B5\D0\B4\D0\B8\D1\82\D0\B5 N:\00"
@.str.1 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 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 sgt i32 %5, 0
br i1 %6, label %7, label %19
7: ; preds = %0
%8 = shl nuw i32 %5, 1
%9 = call i32 @llvm.smax.i32(i32 %8, i32 3)
%10 = add nsw i32 %9, -2
%11 = lshr i32 %10, 1
%12 = mul nuw i32 %11, 3
%13 = lshr i32 %10, 1
%14 = add nsw i32 %11, -1
%15 = mul i32 %13, %14
%16 = and i32 %15, -2
%17 = add i32 %12, %16
%18 = add i32 %17, 1
br label %19
19: ; preds = %7, %0
%20 = phi i32 [ 0, %0 ], [ %18, %7 ]
%21 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %20)
ret i32 0
}