#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, b, c, max;
  scanf("%f", &a);
  scanf("%f", &b);
  scanf("%f", &c);
  if (a > b)
    max = a;
  else
    max = b;
  if (c > max)
    max = c;
  printf("%.1f\n", 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
ucomiss -0xc(%rbp),%xmm0
jbe    117d <main+0x5d>
movss  -0x8(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
jmp    1187 <main+0x67>
movss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x10(%rbp),%xmm0
ucomiss -0x14(%rbp),%xmm0
jbe    11a0 <main+0x80>
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x14(%rbp),%xmm0
lea    0xe57(%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),%xmm1
maxss  0x8(%rsp),%xmm1
movss  0x4(%rsp),%xmm0
maxss  %xmm1,%xmm0
lea    0xe93(%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 = [6 x i8] c"%.1f\0A\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
%10 = load float, float* %3
%11 = fcmp ogt float %9, %10
br i1 %11, label %12, label %14
12: ; preds = %0
%13 = load float, float* %2
store float %13, float* %5
br label %16
14: ; preds = %0
%15 = load float, float* %3
store float %15, float* %5
br label %16
16: ; preds = %14, %12
%17 = load float, float* %4
%18 = load float, float* %5
%19 = fcmp ogt float %17, %18
br i1 %19, label %20, label %22
20: ; preds = %16
%21 = load float, float* %4
store float %21, float* %5
br label %22
22: ; preds = %20, %16
%23 = load float, float* %5
%24 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), float %23)
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%f\00"
@.str.1 = [6 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 = select i1 %12, float %10, float %11
%14 = load float, float* %3
%15 = fcmp ogt float %14, %13
%16 = select i1 %15, float %14, float %13
%17 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), float %16)
ret i32 0
}