; LLVM IR from Shah-Shishir/Codeforces-Solutions :: 892A. Greed (main)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  br label %10

10:                                               ; preds = %60, %0
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  %12 = icmp ne i32 %11, -1
  br i1 %12, label %13, label %62

13:                                               ; preds = %10
  store i64 0, ptr %6, align 8, !tbaa !5
  %14 = load i64, ptr %2, align 8, !tbaa !5
  %15 = call ptr @llvm.stacksave.p0()
  store ptr %15, ptr %8, align 8
  %16 = alloca i64, i64 %14, align 16
  store i64 %14, ptr %9, align 8
  store i64 0, ptr %3, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %26, %13
  %18 = load i64, ptr %3, align 8, !tbaa !5
  %19 = load i64, ptr %2, align 8, !tbaa !5
  %20 = icmp slt i64 %18, %19
  br i1 %20, label %21, label %29

21:                                               ; preds = %17
  %22 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %4)
  %23 = load i64, ptr %4, align 8, !tbaa !5
  %24 = load i64, ptr %6, align 8, !tbaa !5
  %25 = add nsw i64 %24, %23
  store i64 %25, ptr %6, align 8, !tbaa !5
  br label %26

26:                                               ; preds = %21
  %27 = load i64, ptr %3, align 8, !tbaa !5
  %28 = add nsw i64 %27, 1
  store i64 %28, ptr %3, align 8, !tbaa !5
  br label %17, !llvm.loop !9

29:                                               ; preds = %17
  store i64 0, ptr %3, align 8, !tbaa !5
  br label %30

30:                                               ; preds = %38, %29
  %31 = load i64, ptr %3, align 8, !tbaa !5
  %32 = load i64, ptr %2, align 8, !tbaa !5
  %33 = icmp slt i64 %31, %32
  br i1 %33, label %34, label %41

34:                                               ; preds = %30
  %35 = load i64, ptr %3, align 8, !tbaa !5
  %36 = getelementptr inbounds i64, ptr %16, i64 %35
  %37 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %36)
  br label %38

38:                                               ; preds = %34
  %39 = load i64, ptr %3, align 8, !tbaa !5
  %40 = add nsw i64 %39, 1
  store i64 %40, ptr %3, align 8, !tbaa !5
  br label %30, !llvm.loop !11

41:                                               ; preds = %30
  %42 = load i64, ptr %3, align 8, !tbaa !5
  %43 = getelementptr inbounds i64, ptr %16, i64 %42
  call void @_ZSt4sortIPxEvT_S1_(ptr noundef %16, ptr noundef %43)
  %44 = load i64, ptr %2, align 8, !tbaa !5
  %45 = sub nsw i64 %44, 1
  %46 = getelementptr inbounds i64, ptr %16, i64 %45
  %47 = load i64, ptr %46, align 8, !tbaa !5
  %48 = load i64, ptr %2, align 8, !tbaa !5
  %49 = sub nsw i64 %48, 2
  %50 = getelementptr inbounds i64, ptr %16, i64 %49
  %51 = load i64, ptr %50, align 8, !tbaa !5
  %52 = add nsw i64 %47, %51
  store i64 %52, ptr %7, align 8, !tbaa !5
  %53 = load i64, ptr %7, align 8, !tbaa !5
  %54 = load i64, ptr %6, align 8, !tbaa !5
  %55 = icmp sge i64 %53, %54
  br i1 %55, label %56, label %58

56:                                               ; preds = %41
  %57 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  br label %60

58:                                               ; preds = %41
  %59 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  br label %60

60:                                               ; preds = %58, %56
  %61 = load ptr, ptr %8, align 8
  call void @llvm.stackrestore.p0(ptr %61)
  br label %10, !llvm.loop !12

62:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  ret i32 0
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPxEvT_S1_(ptr noundef, ptr noundef) #4

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nosync nounwind willreturn }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %.not16 = icmp eq i32 %3, -1
  br i1 %.not16, label %._crit_edge19, label %.lr.ph18

.lr.ph18:                                         ; preds = %0, %._crit_edge
  %4 = load i64, ptr %1, align 8, !tbaa !5
  %5 = call ptr @llvm.stacksave.p0()
  %6 = alloca i64, i64 %4, align 16
  %7 = load i64, ptr %1, align 8, !tbaa !5
  %8 = icmp sgt i64 %7, 0
  br i1 %8, label %.lr.ph, label %._crit_edge

.preheader:                                       ; preds = %.lr.ph
  %9 = icmp sgt i64 %14, 0
  br i1 %9, label %.lr.ph14, label %._crit_edge

.lr.ph:                                           ; preds = %.lr.ph18, %.lr.ph
  %.012 = phi i64 [ %13, %.lr.ph ], [ 0, %.lr.ph18 ]
  %.0911 = phi i64 [ %12, %.lr.ph ], [ 0, %.lr.ph18 ]
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = add nsw i64 %11, %.0911
  %13 = add nuw nsw i64 %.012, 1
  %14 = load i64, ptr %1, align 8, !tbaa !5
  %15 = icmp slt i64 %13, %14
  br i1 %15, label %.lr.ph, label %.preheader, !llvm.loop !9

.lr.ph14:                                         ; preds = %.preheader, %.lr.ph14
  %.113 = phi i64 [ %18, %.lr.ph14 ], [ 0, %.preheader ]
  %16 = getelementptr inbounds i64, ptr %6, i64 %.113
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %16)
  %18 = add nuw nsw i64 %.113, 1
  %19 = load i64, ptr %1, align 8, !tbaa !5
  %20 = icmp slt i64 %18, %19
  br i1 %20, label %.lr.ph14, label %._crit_edge, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph14, %.lr.ph18, %.preheader
  %.09.lcssa22 = phi i64 [ %12, %.preheader ], [ 0, %.lr.ph18 ], [ %12, %.lr.ph14 ]
  %.1.lcssa = phi i64 [ 0, %.preheader ], [ 0, %.lr.ph18 ], [ %18, %.lr.ph14 ]
  %21 = getelementptr inbounds i64, ptr %6, i64 %.1.lcssa
  call void @_ZSt4sortIPxEvT_S1_(ptr noundef nonnull %6, ptr noundef nonnull %21)
  %22 = load i64, ptr %1, align 8, !tbaa !5
  %23 = getelementptr i64, ptr %6, i64 %22
  %24 = getelementptr i8, ptr %23, i64 -8
  %25 = load i64, ptr %24, align 8, !tbaa !5
  %26 = getelementptr i8, ptr %23, i64 -16
  %27 = load i64, ptr %26, align 8, !tbaa !5
  %28 = add nsw i64 %27, %25
  %.not10 = icmp slt i64 %28, %.09.lcssa22
  %.str.2..str.1 = select i1 %.not10, ptr @.str.2, ptr @.str.1
  %29 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.2..str.1)
  call void @llvm.stackrestore.p0(ptr %5)
  %30 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %.not = icmp eq i32 %30, -1
  br i1 %.not, label %._crit_edge19, label %.lr.ph18, !llvm.loop !12

._crit_edge19:                                    ; preds = %._crit_edge, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPxEvT_S1_(ptr noundef, ptr noundef) local_unnamed_addr #4

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #4 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass