#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 /*<<< orphan*/ scanf(char *, int *);
int main() {
  int n, i, c, a = 1;
  printf("Enter the number of rows of Floyd's triangle to print\n");
  scanf("%d", &n);
  for (i = 1; i <= n; i++) {
    for (c = 1; c <= i; c++) {
      printf("%d ", a);
      a++;
    }
    printf("\n");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x1,-0x14(%rbp)
lea    0xec3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeec(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movl   $0x1,-0xc(%rbp)
mov    -0xc(%rbp),%eax
cmp    -0x8(%rbp),%eax
jg     11be <main+0x9e>
movl   $0x1,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jg     11a2 <main+0x82>
mov    -0x14(%rbp),%esi
lea    0xeb6(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    116e <main+0x4e>
lea    0xe8c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    115b <main+0x3b>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
lea    0xeb8(%rip),%rdi
call   1040 <puts@plt>
lea    0xea5(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1060 <scanf@plt>
cmpl   $0x0,0x4(%rsp)
jle    11c2 <main+0x82>
mov    $0x1,%r15d
lea    0xe8a(%rip),%r14
mov    $0x1,%r12d
nop
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
lea    (%r15,%rbx,1),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
add    $0x1,%ebx
cmp    %ebx,%r12d
jne    1190 <main+0x50>
mov    $0xa,%edi
call   1030 <putchar@plt>
add    %r12d,%r15d
lea    0x1(%r12),%eax
cmp    0x4(%rsp),%r12d
mov    %eax,%r12d
jl     1180 <main+0x40>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [55 x i8] c"Enter the number of rows of Floyd's triangle to print\0A\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [4 x i8] c"%d \00"
@.str.3 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
store i32 0, i32* %1
store i32 1, i32* %5
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([55 x i8], [55 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
store i32 1, i32* %3
br label %8
8: ; preds = %27, %0
%9 = load i32, i32* %3
%10 = load i32, i32* %2
%11 = icmp sle i32 %9, %10
br i1 %11, label %12, label %30
12: ; preds = %8
store i32 1, i32* %4
br label %13
13: ; preds = %22, %12
%14 = load i32, i32* %4
%15 = load i32, i32* %3
%16 = icmp sle i32 %14, %15
br i1 %16, label %17, label %25
17: ; preds = %13
%18 = load i32, i32* %5
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %18)
%20 = load i32, i32* %5
%21 = add nsw i32 %20, 1
store i32 %21, i32* %5
br label %22
22: ; preds = %17
%23 = load i32, i32* %4
%24 = add nsw i32 %23, 1
store i32 %24, i32* %4
br label %13
25: ; preds = %13
%26 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
br label %27
27: ; preds = %25
%28 = load i32, i32* %3
%29 = add nsw i32 %28, 1
store i32 %29, i32* %3
br label %8
30: ; preds = %8
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [4 x i8] c"%d \00"
@str = [54 x i8] c"Enter the number of rows of Floyd's triangle to print\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([54 x i8], [54 x i8]* @str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%5 = load i32, i32* %1
%6 = icmp slt i32 %5, 1
br i1 %6, label %21, label %7
7: ; preds = %0, %16
%8 = phi i32 [ %10, %16 ], [ 1, %0 ]
%9 = phi i32 [ %18, %16 ], [ 1, %0 ]
%10 = add i32 %8, %9
br label %11
11: ; preds = %7, %11
%12 = phi i32 [ %8, %7 ], [ %14, %11 ]
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %12)
%14 = add i32 %12, 1
%15 = icmp eq i32 %14, %10
br i1 %15, label %16, label %11
16: ; preds = %11
%17 = call i32 @putchar(i32 10)
%18 = add nuw nsw i32 %9, 1
%19 = load i32, i32* %1
%20 = icmp slt i32 %9, %19
br i1 %20, label %7, label %21
21: ; preds = %16, %0
ret i32 0
}