; LLVM IR from DionysiosB/CodeForces :: 0600-0699 (682C-AlyonaAndTree)

; 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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl" }
%"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<std::pair<long, long>>, std::allocator<std::vector<std::pair<long, long>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<std::pair<long, long>>, std::allocator<std::vector<std::pair<long, long>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<std::pair<long, long>>, std::allocator<std::vector<std::pair<long, long>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<std::pair<long, long>>, std::allocator<std::vector<std::pair<long, long>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }
%"struct.std::pair" = type { i64, i64 }

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3dfsllRKSt6vectorIlSaIlEERKS_IS_ISt4pairIllESaIS5_EESaIS7_EERl(i64 noundef, i64 noundef, ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  %8 = alloca %"class.std::vector.0", align 8
  %9 = alloca %"class.std::allocator.2", align 1
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  %13 = alloca %"struct.std::pair", align 8
  %14 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #5
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = add nsw i64 %16, 1
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #5
  call void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  invoke void @_ZNSt6vectorIlSaIlEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %17, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %18 unwind label %24

18:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  store i64 1, ptr %7, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %33, %18
  %20 = load i64, ptr %7, align 8, !tbaa !5
  %21 = load i64, ptr %2, align 8, !tbaa !5
  %22 = icmp sle i64 %20, %21
  br i1 %22, label %28, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %40

24:                                               ; preds = %0
  %25 = landingpad { ptr, i32 }
          cleanup
  %26 = extractvalue { ptr, i32 } %25, 0
  store ptr %26, ptr %5, align 8
  %27 = extractvalue { ptr, i32 } %25, 1
  store i32 %27, ptr %6, align 4
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #5
  br label %92

28:                                               ; preds = %19
  %29 = load i64, ptr %7, align 8, !tbaa !5
  %30 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %29) #5
  %31 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %30)
          to label %32 unwind label %36

32:                                               ; preds = %28
  br label %33

33:                                               ; preds = %32
  %34 = load i64, ptr %7, align 8, !tbaa !5
  %35 = add nsw i64 %34, 1
  store i64 %35, ptr %7, align 8, !tbaa !5
  br label %19, !llvm.loop !9

36:                                               ; preds = %28
  %37 = landingpad { ptr, i32 }
          cleanup
  %38 = extractvalue { ptr, i32 } %37, 0
  store ptr %38, ptr %5, align 8
  %39 = extractvalue { ptr, i32 } %37, 1
  store i32 %39, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %91

40:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 24, ptr %8) #5
  %41 = load i64, ptr %2, align 8, !tbaa !5
  %42 = add nsw i64 %41, 1
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #5
  call void @_ZNSaISt6vectorISt4pairIllESaIS1_EEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #5
  invoke void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EEC2EmRKS4_(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %42, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %43 unwind label %49

43:                                               ; preds = %40
  call void @_ZNSt15__new_allocatorISt6vectorISt4pairIllESaIS2_EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  store i64 2, ptr %10, align 8, !tbaa !5
  br label %44

44:                                               ; preds = %65, %43
  %45 = load i64, ptr %10, align 8, !tbaa !5
  %46 = load i64, ptr %2, align 8, !tbaa !5
  %47 = icmp sle i64 %45, %46
  br i1 %47, label %53, label %48

48:                                               ; preds = %44
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %77

49:                                               ; preds = %40
  %50 = landingpad { ptr, i32 }
          cleanup
  %51 = extractvalue { ptr, i32 } %50, 0
  store ptr %51, ptr %5, align 8
  %52 = extractvalue { ptr, i32 } %50, 1
  store i32 %52, ptr %6, align 4
  call void @_ZNSt15__new_allocatorISt6vectorISt4pairIllESaIS2_EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #5
  br label %90

53:                                               ; preds = %44
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %54 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %11, ptr noundef %12)
          to label %55 unwind label %68

55:                                               ; preds = %53
  %56 = load i64, ptr %11, align 8, !tbaa !5
  %57 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %56) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr %13) #5
  %58 = invoke { i64, i64 } @_ZSt9make_pairIRlS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %12)
          to label %59 unwind label %72

59:                                               ; preds = %55
  %60 = getelementptr inbounds { i64, i64 }, ptr %13, i32 0, i32 0
  %61 = extractvalue { i64, i64 } %58, 0
  store i64 %61, ptr %60, align 8
  %62 = getelementptr inbounds { i64, i64 }, ptr %13, i32 0, i32 1
  %63 = extractvalue { i64, i64 } %58, 1
  store i64 %63, ptr %62, align 8
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %57, ptr noundef nonnull align 8 dereferenceable(16) %13)
          to label %64 unwind label %72

64:                                               ; preds = %59
  call void @llvm.lifetime.end.p0(i64 16, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  br label %65

65:                                               ; preds = %64
  %66 = load i64, ptr %10, align 8, !tbaa !5
  %67 = add nsw i64 %66, 1
  store i64 %67, ptr %10, align 8, !tbaa !5
  br label %44, !llvm.loop !11

68:                                               ; preds = %53
  %69 = landingpad { ptr, i32 }
          cleanup
  %70 = extractvalue { ptr, i32 } %69, 0
  store ptr %70, ptr %5, align 8
  %71 = extractvalue { ptr, i32 } %69, 1
  store i32 %71, ptr %6, align 4
  br label %76

72:                                               ; preds = %59, %55
  %73 = landingpad { ptr, i32 }
          cleanup
  %74 = extractvalue { ptr, i32 } %73, 0
  store ptr %74, ptr %5, align 8
  %75 = extractvalue { ptr, i32 } %73, 1
  store i32 %75, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %13) #5
  br label %76

76:                                               ; preds = %72, %68
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %89

77:                                               ; preds = %48
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #5
  store i64 0, ptr %14, align 8, !tbaa !5
  invoke void @_Z3dfsllRKSt6vectorIlSaIlEERKS_IS_ISt4pairIllESaIS5_EESaIS7_EERl(i64 noundef 1, i64 noundef 0, ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 8 dereferenceable(24) %8, ptr noundef nonnull align 8 dereferenceable(8) %14)
          to label %78 unwind label %85

78:                                               ; preds = %77
  %79 = load i64, ptr %2, align 8, !tbaa !5
  %80 = load i64, ptr %14, align 8, !tbaa !5
  %81 = sub nsw i64 %79, %80
  %82 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %81)
          to label %83 unwind label %85

83:                                               ; preds = %78
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #5
  call void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #5
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %84 = load i32, ptr %1, align 4
  ret i32 %84

85:                                               ; preds = %78, %77
  %86 = landingpad { ptr, i32 }
          cleanup
  %87 = extractvalue { ptr, i32 } %86, 0
  store ptr %87, ptr %5, align 8
  %88 = extractvalue { ptr, i32 } %86, 1
  store i32 %88, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #5
  br label %89

89:                                               ; preds = %85, %76
  call void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #5
  br label %90

90:                                               ; preds = %89, %49
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #5
  br label %91

91:                                               ; preds = %90, %36
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  br label %92

92:                                               ; preds = %91, %24
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  br label %93

93:                                               ; preds = %92
  %94 = load ptr, ptr %5, align 8
  %95 = load i32, ptr %6, align 4
  %96 = insertvalue { ptr, i32 } poison, ptr %94, 0
  %97 = insertvalue { ptr, i32 } %96, i32 %95, 1
  resume { ptr, i32 } %97
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorISt4pairIllESaIS1_EEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EEC2EmRKS4_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(16)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { i64, i64 } @_ZSt9make_pairIRlS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #0

declare i32 @printf(ptr noundef, ...) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorISt4pairIllESaIS2_EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 #4 = { mustprogress nounwind 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", !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}


; 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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl" }
%"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<std::pair<long, long>>, std::allocator<std::vector<std::pair<long, long>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<std::pair<long, long>>, std::allocator<std::vector<std::pair<long, long>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<std::pair<long, long>>, std::allocator<std::vector<std::pair<long, long>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<std::pair<long, long>>, std::allocator<std::vector<std::pair<long, long>>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }
%"struct.std::pair" = type { i64, i64 }

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3dfsllRKSt6vectorIlSaIlEERKS_IS_ISt4pairIllESaIS5_EESaIS7_EERl(i64 noundef, i64 noundef, ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca %"class.std::vector.0", align 8
  %5 = alloca %"class.std::allocator.2", align 1
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca %"struct.std::pair", align 8
  %10 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #5
  %12 = load i64, ptr %1, align 8, !tbaa !5
  %13 = add nsw i64 %12, 1
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #5
  call void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  invoke void @_ZNSt6vectorIlSaIlEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %13, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %14 unwind label %17

14:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  %15 = load i64, ptr %1, align 8, !tbaa !5
  %.not13 = icmp slt i64 %15, 1
  br i1 %.not13, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %14
  %.lcssa = phi i64 [ %15, %14 ], [ %22, %.lr.ph ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #5
  %16 = add nsw i64 %.lcssa, 1
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #5
  call void @_ZNSaISt6vectorISt4pairIllESaIS1_EEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #5
  invoke void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EEC2EmRKS4_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %16, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %23 unwind label %26

17:                                               ; preds = %0
  %18 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  br label %51

.lr.ph:                                           ; preds = %14, %.lr.ph
  %.014 = phi i64 [ %21, %.lr.ph ], [ 1, %14 ]
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.014) #5
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %19)
  %21 = add nuw nsw i64 %.014, 1
  %22 = load i64, ptr %1, align 8, !tbaa !5
  %.not.not = icmp slt i64 %.014, %22
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

23:                                               ; preds = %._crit_edge
  call void @_ZNSt15__new_allocatorISt6vectorISt4pairIllESaIS2_EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  store i64 2, ptr %6, align 8, !tbaa !5
  %24 = load i64, ptr %1, align 8, !tbaa !5
  %.not915 = icmp slt i64 %24, 2
  br i1 %.not915, label %._crit_edge18, label %.lr.ph17

.lr.ph17:                                         ; preds = %23
  %25 = getelementptr inbounds i8, ptr %9, i64 8
  br label %28

._crit_edge18:                                    ; preds = %36, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #5
  store i64 0, ptr %10, align 8, !tbaa !5
  invoke void @_Z3dfsllRKSt6vectorIlSaIlEERKS_IS_ISt4pairIllESaIS5_EESaIS7_EERl(i64 noundef 1, i64 noundef 0, ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %42 unwind label %47

26:                                               ; preds = %._crit_edge
  %27 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt6vectorISt4pairIllESaIS2_EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #5
  br label %50

28:                                               ; preds = %.lr.ph17, %36
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #5
  %29 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %7, ptr noundef nonnull %8)
  %30 = load i64, ptr %7, align 8, !tbaa !5
  %31 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %30) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %9) #5
  %32 = invoke { i64, i64 } @_ZSt9make_pairIRlS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %8)
          to label %33 unwind label %40

33:                                               ; preds = %28
  %34 = extractvalue { i64, i64 } %32, 0
  store i64 %34, ptr %9, align 8
  %35 = extractvalue { i64, i64 } %32, 1
  store i64 %35, ptr %25, align 8
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %31, ptr noundef nonnull align 8 dereferenceable(16) %9)
          to label %36 unwind label %40

36:                                               ; preds = %33
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  %37 = load i64, ptr %6, align 8, !tbaa !5
  %38 = add nsw i64 %37, 1
  store i64 %38, ptr %6, align 8, !tbaa !5
  %39 = load i64, ptr %1, align 8, !tbaa !5
  %.not9.not = icmp slt i64 %37, %39
  br i1 %.not9.not, label %28, label %._crit_edge18, !llvm.loop !11

40:                                               ; preds = %33, %28
  %41 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  br label %49

42:                                               ; preds = %._crit_edge18
  %43 = load i64, ptr %1, align 8, !tbaa !5
  %44 = load i64, ptr %10, align 8, !tbaa !5
  %45 = sub nsw i64 %43, %44
  %46 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %45)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #5
  call void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret i32 0

47:                                               ; preds = %._crit_edge18
  %48 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #5
  br label %49

49:                                               ; preds = %47, %40
  %.pn = phi { ptr, i32 } [ %41, %40 ], [ %48, %47 ]
  call void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  br label %50

50:                                               ; preds = %49, %26
  %.pn.pn = phi { ptr, i32 } [ %.pn, %49 ], [ %27, %26 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #5
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  br label %51

51:                                               ; preds = %50, %17
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %50 ], [ %18, %17 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn.pn.pn
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorISt4pairIllESaIS1_EEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EEC2EmRKS4_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { i64, i64 } @_ZSt9make_pairIRlS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_ISt4pairIllESaIS1_EESaIS3_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorISt4pairIllESaIS2_EEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #4 = { mustprogress nounwind 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", !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}


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