#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 ch1, ch2, ch3;
  scanf("%f", &ch1);
  scanf("%f", &ch2);
  scanf("%f", &ch3);
  if (ch1 > ch2)
    if (ch1 > ch3)
      printf("%.1f \n", ch1);
    else
      printf("%.1f \n", ch3);
  else if (ch2 > ch3)
    printf("%.1f \n", ch2);
  else
    printf("%.1f \n", ch3);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%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
ucomiss -0xc(%rbp),%xmm0
jbe    11a9 <main+0x89>
movss  -0x8(%rbp),%xmm0
ucomiss -0x10(%rbp),%xmm0
jbe    1193 <main+0x73>
movss  -0x8(%rbp),%xmm0
lea    0xe7a(%rip),%rdi
call   1030 <printf@plt>
jmp    11a4 <main+0x84>
movss  -0x10(%rbp),%xmm0
lea    0xe64(%rip),%rdi
call   1030 <printf@plt>
jmp    11e4 <main+0xc4>
movss  -0xc(%rbp),%xmm0
ucomiss -0x10(%rbp),%xmm0
jbe    11ce <main+0xae>
movss  -0xc(%rbp),%xmm0
lea    0xe3f(%rip),%rdi
call   1030 <printf@plt>
jmp    11df <main+0xbf>
movss  -0x10(%rbp),%xmm0
lea    0xe29(%rip),%rdi
call   1030 <printf@plt>
jmp    11e4 <main+0xc4>
mov    -0x4(%rbp),%eax
add    $0x10,%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),%xmm0
maxss  0x8(%rsp),%xmm0
maxss  0x4(%rsp),%xmm0
lea    0xe97(%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 = [7 x i8] c"%.1f \0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
store i32 0, i32* %1
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %2)
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %3)
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %4)
%8 = load float, float* %2
%9 = load float, float* %3
%10 = fcmp ogt float %8, %9
br i1 %10, label %11, label %22
11: ; preds = %0
%12 = load float, float* %2
%13 = load float, float* %4
%14 = fcmp ogt float %12, %13
br i1 %14, label %15, label %18
15: ; preds = %11
%16 = load float, float* %2
%17 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), float %16)
br label %21
18: ; preds = %11
%19 = load float, float* %4
%20 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), float %19)
br label %21
21: ; preds = %18, %15
br label %33
22: ; preds = %0
%23 = load float, float* %3
%24 = load float, float* %4
%25 = fcmp ogt float %23, %24
br i1 %25, label %26, label %29
26: ; preds = %22
%27 = load float, float* %3
%28 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), float %27)
br label %32
29: ; preds = %22
%30 = load float, float* %4
%31 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), float %30)
br label %32
32: ; preds = %29, %26
br label %33
33: ; preds = %32, %21
%34 = load i32, i32* %1
ret i32 %34
}

LLVM IR (-O2):
@.str = [3 x i8] c"%f\00"
@.str.1 = [7 x i8] c"%.1f \0A\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 ogt float %10, %11
%13 = load float, float* %3
%14 = select i1 %12, float %10, float %11
%15 = fcmp ogt float %14, %13
%16 = select i1 %15, float %14, float %13
%17 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), float %16)
ret i32 0
}