#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 EOF;
int getchar();
int /*<<< orphan*/ putchar(int);
int main() {
  int c;
  int counter;
  while ((c = getchar()) != EOF) {
    if (c == '\n') {
      counter = 0;
    }
    if (c == ' ') {
      if (counter > 0) {
        c = 0;
      }
    }
    if (c == ' ') {
      ++counter;
    }
    putchar(c);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    $0x0,%al
call   1040 <getchar@plt>
mov    %eax,-0x8(%rbp)
mov    0x2ea8(%rip),%rcx
cmp    (%rcx),%eax
je     1199 <main+0x79>
cmpl   $0xa,-0x8(%rbp)
jne    1159 <main+0x39>
movl   $0x0,-0xc(%rbp)
cmpl   $0x20,-0x8(%rbp)
jne    1179 <main+0x59>
cmpl   $0x0,-0xc(%rbp)
jle    1174 <main+0x54>
movl   $0x0,-0x8(%rbp)
jmp    1179 <main+0x59>
cmpl   $0x20,-0x8(%rbp)
jne    118c <main+0x6c>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
mov    -0x8(%rbp),%edi
call   1030 <putchar@plt>
jmp    112f <main+0xf>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r14
push   %rbx
xor    %ebx,%ebx
xor    %eax,%eax
call   1040 <getchar@plt>
mov    0x2eb4(%rip),%r14
cmp    (%r14),%eax
je     116e <main+0x4e>
nopl   0x0(%rax)
cmp    $0xa,%eax
cmove  %ebx,%ebp
test   %ebp,%ebp
mov    %eax,%edi
cmovg  %ebx,%edi
cmp    $0x20,%eax
cmovne %eax,%edi
xor    %eax,%eax
cmp    $0x20,%edi
sete   %al
add    %eax,%ebp
call   1030 <putchar@plt>
xor    %eax,%eax
call   1040 <getchar@plt>
cmp    (%r14),%eax
jne    1140 <main+0x20>
xor    %eax,%eax
pop    %rbx
pop    %r14
pop    %rbp
ret

LLVM IR (-O0):
@EOF = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
br label %4
4: ; preds = %26, %0
%5 = call i32 (...) @getchar()
store i32 %5, i32* %2
%6 = load i32, i32* @EOF
%7 = icmp ne i32 %5, %6
br i1 %7, label %8, label %29
8: ; preds = %4
%9 = load i32, i32* %2
%10 = icmp eq i32 %9, 10
br i1 %10, label %11, label %12
11: ; preds = %8
store i32 0, i32* %3
br label %12
12: ; preds = %11, %8
%13 = load i32, i32* %2
%14 = icmp eq i32 %13, 32
br i1 %14, label %15, label %20
15: ; preds = %12
%16 = load i32, i32* %3
%17 = icmp sgt i32 %16, 0
br i1 %17, label %18, label %19
18: ; preds = %15
store i32 0, i32* %2
br label %19
19: ; preds = %18, %15
br label %20
20: ; preds = %19, %12
%21 = load i32, i32* %2
%22 = icmp eq i32 %21, 32
br i1 %22, label %23, label %26
23: ; preds = %20
%24 = load i32, i32* %3
%25 = add nsw i32 %24, 1
store i32 %25, i32* %3
br label %26
26: ; preds = %23, %20
%27 = load i32, i32* %2
%28 = call i32 @putchar(i32 %27)
br label %4
29: ; preds = %4
ret i32 0
}

LLVM IR (-O2):
@EOF = global i32 0
define i32 @main() {
%1 = tail call i32 (...) @getchar()
%2 = load i32, i32* @EOF
%3 = icmp eq i32 %1, %2
br i1 %3, label %20, label %4
4: ; preds = %0, %4
%5 = phi i32 [ %17, %4 ], [ %1, %0 ]
%6 = phi i32 [ %15, %4 ], [ undef, %0 ]
%7 = icmp eq i32 %5, 10
%8 = select i1 %7, i32 0, i32 %6
%9 = icmp eq i32 %5, 32
%10 = icmp sgt i32 %8, 0
%11 = select i1 %9, i1 %10, i1 false
%12 = select i1 %11, i32 0, i32 %5
%13 = icmp eq i32 %12, 32
%14 = zext i1 %13 to i32
%15 = add nsw i32 %8, %14
%16 = tail call i32 @putchar(i32 %12)
%17 = tail call i32 (...) @getchar()
%18 = load i32, i32* @EOF
%19 = icmp eq i32 %17, %18
br i1 %19, label %20, label %4
20: ; preds = %4, %0
ret i32 0
}