; LLVM IR from DionysiosB/CodeForces :: 2005B2-TheStrictTeacherHardVersion (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"

%"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.__gnu_cxx::__normal_iterator" = type { ptr }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %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 %"class.std::vector", align 8
  %7 = alloca %"class.std::allocator", align 1
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i64, align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca i64, align 8
  %14 = alloca i64, align 8
  %15 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %19 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #7
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %21

21:                                               ; preds = %129, %0
  %22 = load i64, ptr %2, align 8, !tbaa !5
  %23 = add nsw i64 %22, -1
  store i64 %23, ptr %2, align 8, !tbaa !5
  %24 = icmp ne i64 %22, 0
  br i1 %24, label %25, label %132

25:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #7
  %26 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #7
  %27 = load i64, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #7
  call void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #7
  invoke void @_ZNSt6vectorIlSaIlEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %27, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %28 unwind label %34

28:                                               ; preds = %25
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  store i64 0, ptr %10, align 8, !tbaa !5
  br label %29

29:                                               ; preds = %43, %28
  %30 = load i64, ptr %10, align 8, !tbaa !5
  %31 = load i64, ptr %4, align 8, !tbaa !5
  %32 = icmp slt i64 %30, %31
  br i1 %32, label %38, label %33

33:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  br label %50

34:                                               ; preds = %25
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %8, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %9, align 4
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #7
  br label %131

38:                                               ; preds = %29
  %39 = load i64, ptr %10, align 8, !tbaa !5
  %40 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %39) #7
  %41 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %40)
          to label %42 unwind label %46

42:                                               ; preds = %38
  br label %43

43:                                               ; preds = %42
  %44 = load i64, ptr %10, align 8, !tbaa !5
  %45 = add nsw i64 %44, 1
  store i64 %45, ptr %10, align 8, !tbaa !5
  br label %29, !llvm.loop !9

46:                                               ; preds = %38
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %8, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  br label %130

50:                                               ; preds = %33
  %51 = call ptr @_ZNSt6vectorIlSaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  %52 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %51, ptr %52, align 8
  %53 = call ptr @_ZNSt6vectorIlSaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  %54 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %53, ptr %54, align 8
  %55 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %56 = load ptr, ptr %55, align 8
  %57 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  %58 = load ptr, ptr %57, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPlSt6vectorIlSaIlEEEEEvT_S7_(ptr %56, ptr %58)
          to label %59 unwind label %87

59:                                               ; preds = %50
  br label %60

60:                                               ; preds = %122, %59
  %61 = load i64, ptr %5, align 8, !tbaa !5
  %62 = add nsw i64 %61, -1
  store i64 %62, ptr %5, align 8, !tbaa !5
  %63 = icmp ne i64 %61, 0
  br i1 %63, label %64, label %129

64:                                               ; preds = %60
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #7
  %65 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %13)
          to label %66 unwind label %91

66:                                               ; preds = %64
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #7
  %67 = call ptr @_ZNSt6vectorIlSaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  %68 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  store ptr %67, ptr %68, align 8
  %69 = call ptr @_ZNSt6vectorIlSaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  %70 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  store ptr %69, ptr %70, align 8
  %71 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  %72 = load ptr, ptr %71, align 8
  %73 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  %74 = load ptr, ptr %73, align 8
  %75 = invoke ptr @_ZSt11upper_boundIN9__gnu_cxx17__normal_iteratorIPlSt6vectorIlSaIlEEEElET_S7_S7_RKT0_(ptr %72, ptr %74, ptr noundef nonnull align 8 dereferenceable(8) %13)
          to label %76 unwind label %95

76:                                               ; preds = %66
  %77 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %15, i32 0, i32 0
  store ptr %75, ptr %77, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #7
  %78 = call ptr @_ZNSt6vectorIlSaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  %79 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  store ptr %78, ptr %79, align 8
  %80 = call noundef i64 @_ZN9__gnu_cxxmiIPlSt6vectorIlSaIlEEEENS_17__normal_iteratorIT_T0_E15difference_typeERKS8_SB_(ptr noundef nonnull align 8 dereferenceable(8) %15, ptr noundef nonnull align 8 dereferenceable(8) %18) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  store i64 %80, ptr %14, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #7
  store i64 0, ptr %19, align 8, !tbaa !5
  %81 = load i64, ptr %14, align 8, !tbaa !5
  %82 = icmp ne i64 %81, 0
  br i1 %82, label %99, label %83

83:                                               ; preds = %76
  %84 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef 0) #7
  %85 = load i64, ptr %84, align 8, !tbaa !5
  %86 = sub nsw i64 %85, 1
  store i64 %86, ptr %19, align 8, !tbaa !5
  br label %119

87:                                               ; preds = %50
  %88 = landingpad { ptr, i32 }
          cleanup
  %89 = extractvalue { ptr, i32 } %88, 0
  store ptr %89, ptr %8, align 8
  %90 = extractvalue { ptr, i32 } %88, 1
  store i32 %90, ptr %9, align 4
  br label %130

91:                                               ; preds = %64
  %92 = landingpad { ptr, i32 }
          cleanup
  %93 = extractvalue { ptr, i32 } %92, 0
  store ptr %93, ptr %8, align 8
  %94 = extractvalue { ptr, i32 } %92, 1
  store i32 %94, ptr %9, align 4
  br label %128

95:                                               ; preds = %66
  %96 = landingpad { ptr, i32 }
          cleanup
  %97 = extractvalue { ptr, i32 } %96, 0
  store ptr %97, ptr %8, align 8
  %98 = extractvalue { ptr, i32 } %96, 1
  store i32 %98, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  br label %127

99:                                               ; preds = %76
  %100 = load i64, ptr %14, align 8, !tbaa !5
  %101 = load i64, ptr %4, align 8, !tbaa !5
  %102 = icmp eq i64 %100, %101
  br i1 %102, label %103, label %108

103:                                              ; preds = %99
  %104 = load i64, ptr %3, align 8, !tbaa !5
  %105 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  %106 = load i64, ptr %105, align 8, !tbaa !5
  %107 = sub nsw i64 %104, %106
  store i64 %107, ptr %19, align 8, !tbaa !5
  br label %118

108:                                              ; preds = %99
  %109 = load i64, ptr %14, align 8, !tbaa !5
  %110 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %109) #7
  %111 = load i64, ptr %110, align 8, !tbaa !5
  %112 = load i64, ptr %14, align 8, !tbaa !5
  %113 = sub nsw i64 %112, 1
  %114 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %113) #7
  %115 = load i64, ptr %114, align 8, !tbaa !5
  %116 = sub nsw i64 %111, %115
  %117 = sdiv i64 %116, 2
  store i64 %117, ptr %19, align 8, !tbaa !5
  br label %118

118:                                              ; preds = %108, %103
  br label %119

119:                                              ; preds = %118, %83
  %120 = load i64, ptr %19, align 8, !tbaa !5
  %121 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %120)
          to label %122 unwind label %123

122:                                              ; preds = %119
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  br label %60, !llvm.loop !11

123:                                              ; preds = %119
  %124 = landingpad { ptr, i32 }
          cleanup
  %125 = extractvalue { ptr, i32 } %124, 0
  store ptr %125, ptr %8, align 8
  %126 = extractvalue { ptr, i32 } %124, 1
  store i32 %126, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #7
  br label %127

127:                                              ; preds = %123, %95
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #7
  br label %128

128:                                              ; preds = %127, %91
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  br label %130

129:                                              ; preds = %60
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #7
  br label %21, !llvm.loop !12

130:                                              ; preds = %128, %87, %46
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  br label %131

131:                                              ; preds = %130, %34
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #7
  br label %134

132:                                              ; preds = %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #7
  %133 = load i32, ptr %1, align 4
  ret i32 %133

134:                                              ; preds = %131
  %135 = load ptr, ptr %8, align 8
  %136 = load i32, ptr %9, align 4
  %137 = insertvalue { ptr, i32 } poison, ptr %135, 0
  %138 = insertvalue { ptr, i32 } %137, i32 %136, 1
  resume { ptr, i32 } %138
}

; 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: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 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 #4 align 2

declare i32 @__gxx_personality_v0(...)

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

; 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) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPlSt6vectorIlSaIlEEEEEvT_S7_(ptr, ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIlSaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIlSaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN9__gnu_cxxmiIPlSt6vectorIlSaIlEEEENS_17__normal_iteratorIT_T0_E15difference_typeERKS8_SB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #6

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11upper_boundIN9__gnu_cxx17__normal_iteratorIPlSt6vectorIlSaIlEEEElET_S7_S7_RKT0_(ptr, ptr, ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

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 = { 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 #4 = { 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 = { 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 #6 = { inlinehint 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 #7 = { 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}
!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"

%"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.__gnu_cxx::__normal_iterator" = type { ptr }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca i64, align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #7
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %11 = load i64, ptr %1, align 8, !tbaa !5
  %12 = add nsw i64 %11, -1
  store i64 %12, ptr %1, align 8, !tbaa !5
  %.not26 = icmp eq i64 %11, 0
  br i1 %.not26, label %._crit_edge29, label %.lr.ph28

.lr.ph28:                                         ; preds = %0, %._crit_edge25
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #7
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef nonnull %4)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #7
  %14 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #7
  call void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #7
  invoke void @_ZNSt6vectorIlSaIlEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %14, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %15 unwind label %22

15:                                               ; preds = %.lr.ph28
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #7
  %16 = load i64, ptr %3, align 8, !tbaa !5
  %17 = icmp sgt i64 %16, 0
  br i1 %17, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %15
  %18 = call ptr @_ZNSt6vectorIlSaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  %19 = call ptr @_ZNSt6vectorIlSaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPlSt6vectorIlSaIlEEEEEvT_S7_(ptr %18, ptr %19)
          to label %.preheader unwind label %40

.preheader:                                       ; preds = %._crit_edge
  %20 = load i64, ptr %4, align 8, !tbaa !5
  %21 = add nsw i64 %20, -1
  store i64 %21, ptr %4, align 8, !tbaa !5
  %.not1823 = icmp eq i64 %20, 0
  br i1 %.not1823, label %._crit_edge25, label %.lr.ph24

22:                                               ; preds = %.lr.ph28
  %23 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #7
  br label %67

.lr.ph:                                           ; preds = %15, %.lr.ph
  %.01622 = phi i64 [ %26, %.lr.ph ], [ 0, %15 ]
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %.01622) #7
  %25 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %24)
  %26 = add nuw nsw i64 %.01622, 1
  %27 = load i64, ptr %3, align 8, !tbaa !5
  %28 = icmp slt i64 %26, %27
  br i1 %28, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph24:                                         ; preds = %.preheader, %60
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #7
  %29 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %7)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #7
  %30 = call ptr @_ZNSt6vectorIlSaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  %31 = call ptr @_ZNSt6vectorIlSaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  %32 = invoke ptr @_ZSt11upper_boundIN9__gnu_cxx17__normal_iteratorIPlSt6vectorIlSaIlEEEElET_S7_S7_RKT0_(ptr %30, ptr %31, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %33 unwind label %42

33:                                               ; preds = %.lr.ph24
  store ptr %32, ptr %8, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #7
  %34 = call ptr @_ZNSt6vectorIlSaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  store ptr %34, ptr %9, align 8
  %35 = call noundef i64 @_ZN9__gnu_cxxmiIPlSt6vectorIlSaIlEEEENS_17__normal_iteratorIT_T0_E15difference_typeERKS8_SB_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  %.not21 = icmp eq i64 %35, 0
  br i1 %.not21, label %36, label %44

36:                                               ; preds = %33
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef 0) #7
  %38 = load i64, ptr %37, align 8, !tbaa !5
  %39 = add nsw i64 %38, -1
  br label %60

40:                                               ; preds = %._crit_edge
  %41 = landingpad { ptr, i32 }
          cleanup
  br label %66

42:                                               ; preds = %.lr.ph24
  %43 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  br label %66

44:                                               ; preds = %33
  %45 = load i64, ptr %3, align 8, !tbaa !5
  %46 = icmp eq i64 %35, %45
  br i1 %46, label %47, label %52

47:                                               ; preds = %44
  %48 = load i64, ptr %2, align 8, !tbaa !5
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  %50 = load i64, ptr %49, align 8, !tbaa !5
  %51 = sub nsw i64 %48, %50
  br label %60

52:                                               ; preds = %44
  %53 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %35) #7
  %54 = load i64, ptr %53, align 8, !tbaa !5
  %55 = add nsw i64 %35, -1
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %55) #7
  %57 = load i64, ptr %56, align 8, !tbaa !5
  %58 = sub nsw i64 %54, %57
  %59 = sdiv i64 %58, 2
  br label %60

60:                                               ; preds = %47, %52, %36
  %.0 = phi i64 [ %51, %47 ], [ %59, %52 ], [ %39, %36 ]
  %61 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %.0)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #7
  %62 = load i64, ptr %4, align 8, !tbaa !5
  %63 = add nsw i64 %62, -1
  store i64 %63, ptr %4, align 8, !tbaa !5
  %.not18 = icmp eq i64 %62, 0
  br i1 %.not18, label %._crit_edge25, label %.lr.ph24, !llvm.loop !11

._crit_edge25:                                    ; preds = %60, %.preheader
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  %64 = load i64, ptr %1, align 8, !tbaa !5
  %65 = add nsw i64 %64, -1
  store i64 %65, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %64, 0
  br i1 %.not, label %._crit_edge29, label %.lr.ph28, !llvm.loop !12

66:                                               ; preds = %42, %40
  %.pn = phi { ptr, i32 } [ %43, %42 ], [ %41, %40 ]
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  br label %67

67:                                               ; preds = %66, %22
  %.pn.pn = phi { ptr, i32 } [ %.pn, %66 ], [ %23, %22 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn.pn

._crit_edge29:                                    ; preds = %._crit_edge25, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #7
  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 nounwind uwtable
declare dso_local void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 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 #4 align 2

declare i32 @__gxx_personality_v0(...)

; 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 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 #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPlSt6vectorIlSaIlEEEEEvT_S7_(ptr, ptr) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIlSaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIlSaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN9__gnu_cxxmiIPlSt6vectorIlSaIlEEEENS_17__normal_iteratorIT_T0_E15difference_typeERKS8_SB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #6

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11upper_boundIN9__gnu_cxx17__normal_iteratorIPlSt6vectorIlSaIlEEEElET_S7_S7_RKT0_(ptr, ptr, ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

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 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 #4 = { 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 = { 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 #6 = { inlinehint 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 #7 = { 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}
!12 = distinct !{!12, !10}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass