#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, int);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int minute;
  scanf("%d", &minute);
  while (minute > 0) {
    printf("%d hr %d min\n", minute / 60, minute % 60);
    scanf("%d", &minute);
  }
  return 0;
}


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>
cmpl   $0x0,-0x8(%rbp)
jle    1182 <main+0x62>
mov    -0x8(%rbp),%eax
mov    $0x3c,%ecx
cltd
idiv   %ecx
mov    %eax,%esi
mov    -0x8(%rbp),%eax
mov    $0x3c,%ecx
cltd
idiv   %ecx
lea    0xe9b(%rip),%rdi
call   1030 <printf@plt>
lea    0xe8c(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
jmp    113f <main+0x1f>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
lea    0xed1(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%edx
test   %edx,%edx
jle    118a <main+0x6a>
mov    $0x88888889,%r12d
lea    0xeb5(%rip),%r14
lea    0xeab(%rip),%r15
lea    0x4(%rsp),%rbx
nopw   0x0(%rax,%rax,1)
mov    %edx,%esi
imul   %r12,%rsi
shr    $0x25,%rsi
imul   $0x3c,%esi,%eax
sub    %eax,%edx
mov    %r14,%rdi
call   1030 <printf@plt>
mov    %r15,%rdi
mov    %rbx,%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%edx
test   %edx,%edx
jg     1160 <main+0x40>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
@.str.1 = [14 x i8] c"%d hr %d min\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
br label %4
4: ; preds = %7, %0
%5 = load i32, i32* %2
%6 = icmp sgt i32 %5, 0
br i1 %6, label %7, label %14
7: ; preds = %4
%8 = load i32, i32* %2
%9 = sdiv i32 %8, 60
%10 = load i32, i32* %2
%11 = srem i32 %10, 60
%12 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i32 %9, i32 %11)
%13 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
br label %4
14: ; preds = %4
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [14 x i8] c"%d hr %d min\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%4 = load i32, i32* %1
%5 = icmp sgt i32 %4, 0
br i1 %5, label %6, label %14
6: ; preds = %0, %6
%7 = phi i32 [ %12, %6 ], [ %4, %0 ]
%8 = udiv i32 %7, 60
%9 = urem i32 %7, 60
%10 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i32 %8, i32 %9)
%11 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%12 = load i32, i32* %1
%13 = icmp sgt i32 %12, 0
br i1 %13, label %6, label %14
14: ; preds = %6, %0
ret i32 0
}