; LLVM IR from kazunetakahashi/atcoder :: 201510_201609/1219 (I)

; 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<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@a = external dso_local global [100010 x i32], align 16
@V = external dso_local global [100010 x %"class.std::vector"], align 16
@ans = external dso_local global [100010 x i32], align 16
@N = external dso_local global i32, align 4
@root = external dso_local global i32, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z7findansv() #0

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPbbEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) #2

; 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 ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #4 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca [100010 x i8], align 16
  %4 = alloca i8, align 1
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %14 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %26, %0
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = load i32, ptr @N, align 4, !tbaa !5
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %29

21:                                               ; preds = %16
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [100010 x i32], ptr @a, i64 0, i64 %23
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %24)
  br label %26

26:                                               ; preds = %21
  %27 = load i32, ptr %2, align 4, !tbaa !5
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %2, align 4, !tbaa !5
  br label %16, !llvm.loop !9

29:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 100010, ptr %3) #6
  %30 = getelementptr inbounds [100010 x i8], ptr %3, i64 0, i64 0
  %31 = getelementptr inbounds [100010 x i8], ptr %3, i64 0, i64 0
  %32 = load i32, ptr @N, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds i8, ptr %31, i64 %33
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #6
  store i8 0, ptr %4, align 1, !tbaa !11
  call void @_ZSt4fillIPbbEvT_S1_RKT0_(ptr noundef %30, ptr noundef %34, ptr noundef nonnull align 1 dereferenceable(1) %4)
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %35

35:                                               ; preds = %50, %29
  %36 = load i32, ptr %5, align 4, !tbaa !5
  %37 = load i32, ptr @N, align 4, !tbaa !5
  %38 = sub nsw i32 %37, 1
  %39 = icmp slt i32 %36, %38
  br i1 %39, label %41, label %40

40:                                               ; preds = %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %53

41:                                               ; preds = %35
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  %42 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %42, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %44 = load i32, ptr %6, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds [100010 x %"class.std::vector"], ptr @V, i64 0, i64 %45
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %46, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %47 = load i32, ptr %7, align 4, !tbaa !5
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds [100010 x i8], ptr %3, i64 0, i64 %48
  store i8 1, ptr %49, align 1, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  br label %50

50:                                               ; preds = %41
  %51 = load i32, ptr %5, align 4, !tbaa !5
  %52 = add nsw i32 %51, 1
  store i32 %52, ptr %5, align 4, !tbaa !5
  br label %35, !llvm.loop !13

53:                                               ; preds = %40
  %54 = load i32, ptr @N, align 4, !tbaa !5
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds i32, ptr @ans, i64 %55
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  store i32 -1, ptr %8, align 4, !tbaa !5
  call void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef @ans, ptr noundef %56, ptr noundef nonnull align 4 dereferenceable(4) %8)
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  store i32 0, ptr %9, align 4, !tbaa !5
  br label %57

57:                                               ; preds = %71, %53
  %58 = load i32, ptr %9, align 4, !tbaa !5
  %59 = load i32, ptr @N, align 4, !tbaa !5
  %60 = icmp slt i32 %58, %59
  br i1 %60, label %62, label %61

61:                                               ; preds = %57
  store i32 8, ptr %10, align 4
  br label %74

62:                                               ; preds = %57
  %63 = load i32, ptr %9, align 4, !tbaa !5
  %64 = sext i32 %63 to i64
  %65 = getelementptr inbounds [100010 x i8], ptr %3, i64 0, i64 %64
  %66 = load i8, ptr %65, align 1, !tbaa !11, !range !14, !noundef !15
  %67 = trunc i8 %66 to i1
  br i1 %67, label %70, label %68

68:                                               ; preds = %62
  %69 = load i32, ptr %9, align 4, !tbaa !5
  store i32 %69, ptr @root, align 4, !tbaa !5
  store i32 8, ptr %10, align 4
  br label %74

70:                                               ; preds = %62
  br label %71

71:                                               ; preds = %70
  %72 = load i32, ptr %9, align 4, !tbaa !5
  %73 = add nsw i32 %72, 1
  store i32 %73, ptr %9, align 4, !tbaa !5
  br label %57, !llvm.loop !16

74:                                               ; preds = %68, %61
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %75

75:                                               ; preds = %74
  call void @_Z7findansv()
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !5
  br label %76

76:                                               ; preds = %96, %75
  %77 = load i32, ptr %11, align 4, !tbaa !5
  %78 = load i32, ptr @N, align 4, !tbaa !5
  %79 = icmp slt i32 %77, %78
  br i1 %79, label %81, label %80

80:                                               ; preds = %76
  store i32 11, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %99

81:                                               ; preds = %76
  %82 = load i32, ptr %11, align 4, !tbaa !5
  %83 = sext i32 %82 to i64
  %84 = getelementptr inbounds [100010 x %"class.std::vector"], ptr @V, i64 0, i64 %83
  %85 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %84) #6
  %86 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %85, ptr %86, align 8
  %87 = load i32, ptr %11, align 4, !tbaa !5
  %88 = sext i32 %87 to i64
  %89 = getelementptr inbounds [100010 x %"class.std::vector"], ptr @V, i64 0, i64 %88
  %90 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %89) #6
  %91 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  store ptr %90, ptr %91, align 8
  %92 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  %93 = load ptr, ptr %92, align 8
  %94 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  %95 = load ptr, ptr %94, align 8
  call void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr %93, ptr %95)
  br label %96

96:                                               ; preds = %81
  %97 = load i32, ptr %11, align 4, !tbaa !5
  %98 = add nsw i32 %97, 1
  store i32 %98, ptr %11, align 4, !tbaa !5
  br label %76, !llvm.loop !17

99:                                               ; preds = %80
  call void @_Z7findansv()
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #6
  store i32 0, ptr %14, align 4, !tbaa !5
  br label %100

100:                                              ; preds = %112, %99
  %101 = load i32, ptr %14, align 4, !tbaa !5
  %102 = load i32, ptr @N, align 4, !tbaa !5
  %103 = icmp slt i32 %101, %102
  br i1 %103, label %105, label %104

104:                                              ; preds = %100
  store i32 14, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #6
  br label %115

105:                                              ; preds = %100
  %106 = load i32, ptr %14, align 4, !tbaa !5
  %107 = sext i32 %106 to i64
  %108 = getelementptr inbounds [100010 x i32], ptr @ans, i64 0, i64 %107
  %109 = load i32, ptr %108, align 4, !tbaa !5
  %110 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %109)
  %111 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %110, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %112

112:                                              ; preds = %105
  %113 = load i32, ptr %14, align 4, !tbaa !5
  %114 = add nsw i32 %113, 1
  store i32 %114, ptr %14, align 4, !tbaa !5
  br label %100, !llvm.loop !18

115:                                              ; preds = %104
  call void @llvm.lifetime.end.p0(i64 100010, ptr %3) #6
  %116 = load i32, ptr %1, align 4
  ret i32 %116
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr, ptr) #2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #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 = { 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 #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 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 #5 = { "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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = distinct !{!13, !10}
!14 = !{i8 0, i8 2}
!15 = !{}
!16 = distinct !{!16, !10}
!17 = distinct !{!17, !10}
!18 = distinct !{!18, !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<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }

@a = external dso_local global [100010 x i32], align 16
@V = external dso_local global [100010 x %"class.std::vector"], align 16
@ans = external dso_local global [100010 x i32], align 16
@N = external dso_local global i32, align 4
@root = external dso_local local_unnamed_addr global i32, align 4
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z7findansv() 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: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPbbEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #2

; 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 ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #4 {
  %1 = alloca [100010 x i8], align 16
  %2 = alloca i8, align 1
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  %7 = load i32, ptr @N, align 4, !tbaa !5
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %.lr.ph, label %.._crit_edge_crit_edge

.._crit_edge_crit_edge:                           ; preds = %0
  %.pre = sext i32 %7 to i64
  br label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.._crit_edge_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.._crit_edge_crit_edge ], [ %15, %.lr.ph ]
  call void @llvm.lifetime.start.p0(i64 100010, ptr nonnull %1) #6
  %9 = getelementptr inbounds i8, ptr %1, i64 %.pre-phi
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #6
  store i8 0, ptr %2, align 1, !tbaa !9
  call void @_ZSt4fillIPbbEvT_S1_RKT0_(ptr noundef nonnull %1, ptr noundef nonnull %9, ptr noundef nonnull align 1 dereferenceable(1) %2)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #6
  %10 = load i32, ptr @N, align 4, !tbaa !5
  %11 = icmp sgt i32 %10, 1
  br i1 %11, label %.lr.ph27, label %._crit_edge28

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %12 = getelementptr inbounds [100010 x i32], ptr @a, i64 0, i64 %indvars.iv
  %13 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %12)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %14 = load i32, ptr @N, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = icmp slt i64 %indvars.iv.next, %15
  br i1 %16, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge28:                                    ; preds = %.lr.ph27, %._crit_edge
  %.lcssa = phi i32 [ %10, %._crit_edge ], [ %30, %.lr.ph27 ]
  %17 = sext i32 %.lcssa to i64
  %18 = getelementptr inbounds i32, ptr @ans, i64 %17
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #6
  store i32 -1, ptr %5, align 4, !tbaa !5
  call void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef nonnull @ans, ptr noundef nonnull %18, ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #6
  %19 = load i32, ptr @N, align 4, !tbaa !5
  %20 = icmp sgt i32 %19, 0
  br i1 %20, label %.lr.ph32.preheader, label %.loopexit

.lr.ph32.preheader:                               ; preds = %._crit_edge28
  %wide.trip.count = zext nneg i32 %19 to i64
  br label %.lr.ph32

.lr.ph27:                                         ; preds = %._crit_edge, %.lr.ph27
  %.01925 = phi i32 [ %29, %.lr.ph27 ], [ 0, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #6
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %21, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %23 = load i32, ptr %3, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [100010 x %"class.std::vector"], ptr @V, i64 0, i64 %24
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %25, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %26 = load i32, ptr %4, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [100010 x i8], ptr %1, i64 0, i64 %27
  store i8 1, ptr %28, align 1, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #6
  %29 = add nuw nsw i32 %.01925, 1
  %30 = load i32, ptr @N, align 4, !tbaa !5
  %31 = add nsw i32 %30, -1
  %32 = icmp slt i32 %29, %31
  br i1 %32, label %.lr.ph27, label %._crit_edge28, !llvm.loop !13

.lr.ph32:                                         ; preds = %.lr.ph32.preheader, %38
  %indvars.iv45 = phi i64 [ 0, %.lr.ph32.preheader ], [ %indvars.iv.next46, %38 ]
  %33 = getelementptr inbounds [100010 x i8], ptr %1, i64 0, i64 %indvars.iv45
  %34 = load i8, ptr %33, align 1, !tbaa !9, !range !14, !noundef !15
  %35 = trunc nuw i8 %34 to i1
  br i1 %35, label %38, label %36

36:                                               ; preds = %.lr.ph32
  %37 = trunc nuw nsw i64 %indvars.iv45 to i32
  store i32 %37, ptr @root, align 4, !tbaa !5
  br label %.loopexit

38:                                               ; preds = %.lr.ph32
  %indvars.iv.next46 = add nuw nsw i64 %indvars.iv45, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next46, %wide.trip.count
  br i1 %exitcond.not, label %.loopexit, label %.lr.ph32, !llvm.loop !16

.loopexit:                                        ; preds = %38, %._crit_edge28, %36
  call void @_Z7findansv()
  %39 = load i32, ptr @N, align 4, !tbaa !5
  %40 = icmp sgt i32 %39, 0
  br i1 %40, label %.lr.ph35, label %._crit_edge36

._crit_edge36:                                    ; preds = %.lr.ph35, %.loopexit
  call void @_Z7findansv()
  %41 = load i32, ptr @N, align 4, !tbaa !5
  %42 = icmp sgt i32 %41, 0
  br i1 %42, label %.lr.ph39, label %._crit_edge40

.lr.ph35:                                         ; preds = %.loopexit, %.lr.ph35
  %indvars.iv48 = phi i64 [ %indvars.iv.next49, %.lr.ph35 ], [ 0, %.loopexit ]
  %43 = getelementptr inbounds [100010 x %"class.std::vector"], ptr @V, i64 0, i64 %indvars.iv48
  %44 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %43) #6
  %45 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %43) #6
  call void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr %44, ptr %45)
  %indvars.iv.next49 = add nuw nsw i64 %indvars.iv48, 1
  %46 = load i32, ptr @N, align 4, !tbaa !5
  %47 = sext i32 %46 to i64
  %48 = icmp slt i64 %indvars.iv.next49, %47
  br i1 %48, label %.lr.ph35, label %._crit_edge36, !llvm.loop !17

._crit_edge40:                                    ; preds = %.lr.ph39, %._crit_edge36
  call void @llvm.lifetime.end.p0(i64 100010, ptr nonnull %1) #6
  ret i32 0

.lr.ph39:                                         ; preds = %._crit_edge36, %.lr.ph39
  %indvars.iv51 = phi i64 [ %indvars.iv.next52, %.lr.ph39 ], [ 0, %._crit_edge36 ]
  %49 = getelementptr inbounds [100010 x i32], ptr @ans, i64 0, i64 %indvars.iv51
  %50 = load i32, ptr %49, align 4, !tbaa !5
  %51 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %50)
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %51, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %indvars.iv.next52 = add nuw nsw i64 %indvars.iv51, 1
  %53 = load i32, ptr @N, align 4, !tbaa !5
  %54 = sext i32 %53 to i64
  %55 = icmp slt i64 %indvars.iv.next52, %54
  br i1 %55, label %.lr.ph39, label %._crit_edge40, !llvm.loop !18
}

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt7reverseIN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEEEvT_S7_(ptr, ptr) local_unnamed_addr #2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #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 = { 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 #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 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 #5 = { "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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = !{i8 0, i8 2}
!15 = !{}
!16 = distinct !{!16, !12}
!17 = distinct !{!17, !12}
!18 = distinct !{!18, !12}


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