#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 *, float);
int /*<<< orphan*/ scanf(char *, float *);
int main() {
  float a;
  float b;
  float c;
  scanf("%f", &a);
  scanf("%f", &b);
  scanf("%f", &c);
  float max = a;
  if (max < b) {
    max = b;
    if (max < c) {
      max = c;
    }
  } else if (max < c) {
    max = c;
  };
  printf("%.1f", max);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xeba(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xeaa(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x14(%rbp),%xmm1
movss  -0xc(%rbp),%xmm0
ucomiss %xmm1,%xmm0
jbe    11a8 <main+0x88>
movss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x14(%rbp),%xmm1
movss  -0x10(%rbp),%xmm0
ucomiss %xmm1,%xmm0
jbe    11a3 <main+0x83>
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
jmp    11ca <main+0xaa>
movss  -0x14(%rbp),%xmm1
movss  -0x10(%rbp),%xmm0
ucomiss %xmm1,%xmm0
jbe    11c5 <main+0xa5>
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
jmp    11ca <main+0xaa>
movss  -0x14(%rbp),%xmm0
lea    0xe2d(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x4(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
movss  0xc(%rsp),%xmm2
movss  0x8(%rsp),%xmm0
ucomiss %xmm2,%xmm0
movss  0x4(%rsp),%xmm1
jbe    1171 <main+0x51>
ucomiss %xmm0,%xmm1
ja     1179 <main+0x59>
jmp    117c <main+0x5c>
ucomiss %xmm2,%xmm1
movaps %xmm2,%xmm0
jbe    117c <main+0x5c>
movaps %xmm1,%xmm0
lea    0xe80(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

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

LLVM IR (-O2):
@.str = [3 x i8] c"%f\00"
@.str.1 = [5 x i8] c"%.1f\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = alloca float
%4 = bitcast float* %1 to i8*
%5 = bitcast float* %2 to i8*
%6 = bitcast float* %3 to i8*
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %2)
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %3)
%10 = load float, float* %1
%11 = load float, float* %2
%12 = fcmp olt float %10, %11
%13 = load float, float* %3
br i1 %12, label %14, label %17
14: ; preds = %0
%15 = fcmp olt float %11, %13
br i1 %15, label %16, label %20
16: ; preds = %14
br label %20
17: ; preds = %0
%18 = fcmp olt float %10, %13
br i1 %18, label %19, label %20
19: ; preds = %17
br label %20
20: ; preds = %17, %19, %14, %16
%21 = phi float [ %13, %16 ], [ %11, %14 ], [ %13, %19 ], [ %10, %17 ]
%22 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), float %21)
ret i32 0
}