; LLVM IR from xirc/cp-algorithm :: atcoder/abc107/B (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<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_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.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<char>, std::allocator<std::vector<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<char>, std::allocator<std::vector<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<char>, std::allocator<std::vector<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<char>, std::allocator<std::vector<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator.12" = type { i8 }

@H = external dso_local global i32, align 4
@W = external dso_local global i32, align 4
@_Z1AB5cxx11 = external dso_local global %"class.std::vector", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5solvev(ptr dead_on_unwind noalias writable sret(%"class.std::vector.0") align 8) #0

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

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(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::allocator.12", align 1
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::vector.0", align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %11 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %12 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %13 = getelementptr i8, ptr %12, i64 -24
  %14 = load i64, ptr %13, align 8
  %15 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %14
  %16 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %15, ptr noundef null)
  %17 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %18 = getelementptr i8, ptr %17, i64 -24
  %19 = load i64, ptr %18, align 8
  %20 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %19
  %21 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %20, ptr noundef null)
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @H)
  %23 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %22, ptr noundef nonnull align 4 dereferenceable(4) @W)
  %24 = load i32, ptr @H, align 4, !tbaa !8
  %25 = sext i32 %24 to i64
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %26 unwind label %33

26:                                               ; preds = %0
  invoke void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6assignEmRKS5_(ptr noundef nonnull align 8 dereferenceable(24) @_Z1AB5cxx11, i64 noundef %25, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %27 unwind label %37

27:                                               ; preds = %26
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  store i32 0, ptr %6, align 4, !tbaa !8
  br label %28

28:                                               ; preds = %47, %27
  %29 = load i32, ptr %6, align 4, !tbaa !8
  %30 = load i32, ptr @H, align 4, !tbaa !8
  %31 = icmp slt i32 %29, %30
  br i1 %31, label %42, label %32

32:                                               ; preds = %28
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  br label %50

33:                                               ; preds = %0
  %34 = landingpad { ptr, i32 }
          cleanup
  %35 = extractvalue { ptr, i32 } %34, 0
  store ptr %35, ptr %4, align 8
  %36 = extractvalue { ptr, i32 } %34, 1
  store i32 %36, ptr %5, align 4
  br label %41

37:                                               ; preds = %26
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %4, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %5, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #6
  br label %41

41:                                               ; preds = %37, %33
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #6
  br label %97

42:                                               ; preds = %28
  %43 = load i32, ptr %6, align 4, !tbaa !8
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z1AB5cxx11, i64 noundef %44) #6
  %46 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %45)
  br label %47

47:                                               ; preds = %42
  %48 = load i32, ptr %6, align 4, !tbaa !8
  %49 = add nsw i32 %48, 1
  store i32 %49, ptr %6, align 4, !tbaa !8
  br label %28, !llvm.loop !11

50:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #6
  call void @_Z5solvev(ptr dead_on_unwind writable sret(%"class.std::vector.0") align 8 %7)
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  store i32 0, ptr %8, align 4, !tbaa !8
  br label %51

51:                                               ; preds = %87, %50
  %52 = load i32, ptr %8, align 4, !tbaa !8
  %53 = sext i32 %52 to i64
  %54 = call noundef i64 @_ZNKSt6vectorIS_IcSaIcEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  %55 = icmp ult i64 %53, %54
  br i1 %55, label %57, label %56

56:                                               ; preds = %51
  store i32 5, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  br label %95

57:                                               ; preds = %51
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  store i32 0, ptr %10, align 4, !tbaa !8
  br label %58

58:                                               ; preds = %77, %57
  %59 = load i32, ptr %10, align 4, !tbaa !8
  %60 = sext i32 %59 to i64
  %61 = load i32, ptr %8, align 4, !tbaa !8
  %62 = sext i32 %61 to i64
  %63 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %62) #6
  %64 = call noundef i64 @_ZNKSt6vectorIcSaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %63) #6
  %65 = icmp ult i64 %60, %64
  br i1 %65, label %67, label %66

66:                                               ; preds = %58
  store i32 8, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %84

67:                                               ; preds = %58
  %68 = load i32, ptr %8, align 4, !tbaa !8
  %69 = sext i32 %68 to i64
  %70 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %69) #6
  %71 = load i32, ptr %10, align 4, !tbaa !8
  %72 = sext i32 %71 to i64
  %73 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIcSaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %70, i64 noundef %72) #6
  %74 = load i8, ptr %73, align 1, !tbaa !13
  %75 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %74)
          to label %76 unwind label %80

76:                                               ; preds = %67
  br label %77

77:                                               ; preds = %76
  %78 = load i32, ptr %10, align 4, !tbaa !8
  %79 = add nsw i32 %78, 1
  store i32 %79, ptr %10, align 4, !tbaa !8
  br label %58, !llvm.loop !14

80:                                               ; preds = %67
  %81 = landingpad { ptr, i32 }
          cleanup
  %82 = extractvalue { ptr, i32 } %81, 0
  store ptr %82, ptr %4, align 8
  %83 = extractvalue { ptr, i32 } %81, 1
  store i32 %83, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %94

84:                                               ; preds = %66
  %85 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %86 unwind label %90

86:                                               ; preds = %84
  br label %87

87:                                               ; preds = %86
  %88 = load i32, ptr %8, align 4, !tbaa !8
  %89 = add nsw i32 %88, 1
  store i32 %89, ptr %8, align 4, !tbaa !8
  br label %51, !llvm.loop !15

90:                                               ; preds = %84
  %91 = landingpad { ptr, i32 }
          cleanup
  %92 = extractvalue { ptr, i32 } %91, 0
  store ptr %92, ptr %4, align 8
  %93 = extractvalue { ptr, i32 } %91, 1
  store i32 %93, ptr %5, align 4
  br label %94

94:                                               ; preds = %90, %80
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #6
  br label %97

95:                                               ; preds = %56
  store i32 0, ptr %1, align 4
  store i32 1, ptr %9, align 4
  call void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #6
  %96 = load i32, ptr %1, align 4
  ret i32 %96

97:                                               ; preds = %94, %41
  %98 = load ptr, ptr %4, align 8
  %99 = load i32, ptr %5, align 4
  %100 = insertvalue { ptr, i32 } poison, ptr %98, 0
  %101 = insertvalue { ptr, i32 } %100, i32 %99, 1
  resume { ptr, i32 } %101
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #4

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #2 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6assignEmRKS5_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IcSaIcEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIcSaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIcSaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; 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)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 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 #3 = { 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 #4 = { "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 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!10, !10, i64 0}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}


; 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<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::__cxx11::basic_string<char>, std::allocator<std::__cxx11::basic_string<char>>>::_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.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::vector<char>, std::allocator<std::vector<char>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<char>, std::allocator<std::vector<char>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<char>, std::allocator<std::vector<char>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<char>, std::allocator<std::vector<char>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator.12" = type { i8 }

@H = external dso_local global i32, align 4
@W = external dso_local global i32, align 4
@_Z1AB5cxx11 = external dso_local global %"class.std::vector", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5solvev(ptr dead_on_unwind noalias writable sret(%"class.std::vector.0") align 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

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(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::allocator.12", align 1
  %3 = alloca %"class.std::vector.0", align 8
  %4 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %5 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %6 = getelementptr i8, ptr %5, i64 -24
  %7 = load i64, ptr %6, align 8
  %8 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %7
  %9 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %8, ptr noundef null)
  %10 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %11 = getelementptr i8, ptr %10, i64 -24
  %12 = load i64, ptr %11, align 8
  %13 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %12
  %14 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %13, ptr noundef null)
  %15 = 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) @H)
  %16 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %15, ptr noundef nonnull align 4 dereferenceable(4) @W)
  %17 = load i32, ptr @H, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %18 unwind label %24

18:                                               ; preds = %0
  %19 = sext i32 %17 to i64
  invoke void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6assignEmRKS5_(ptr noundef nonnull align 8 dereferenceable(24) @_Z1AB5cxx11, i64 noundef %19, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %20 unwind label %26

20:                                               ; preds = %18
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  %21 = load i32, ptr @H, align 4, !tbaa !8
  %22 = icmp sgt i32 %21, 0
  br i1 %22, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %20
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  call void @_Z5solvev(ptr dead_on_unwind nonnull writable sret(%"class.std::vector.0") align 8 %3)
  %23 = call noundef i64 @_ZNKSt6vectorIS_IcSaIcEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  %.not = icmp eq i64 %23, 0
  br i1 %.not, label %._crit_edge29, label %.preheader

24:                                               ; preds = %0
  %25 = landingpad { ptr, i32 }
          cleanup
  br label %28

26:                                               ; preds = %18
  %27 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  br label %28

28:                                               ; preds = %26, %24
  %.pn = phi { ptr, i32 } [ %27, %26 ], [ %25, %24 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  br label %53

.lr.ph:                                           ; preds = %20, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %20 ]
  %29 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @_Z1AB5cxx11, i64 noundef %indvars.iv) #6
  %30 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %29)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %31 = load i32, ptr @H, align 4, !tbaa !8
  %32 = sext i32 %31 to i64
  %33 = icmp slt i64 %indvars.iv.next, %32
  br i1 %33, label %.lr.ph, label %._crit_edge, !llvm.loop !11

.preheader:                                       ; preds = %._crit_edge, %47
  %indvars.iv35 = phi i64 [ %indvars.iv.next36, %47 ], [ 0, %._crit_edge ]
  %34 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv35) #6
  %35 = call noundef i64 @_ZNKSt6vectorIcSaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %34) #6
  %.not30 = icmp eq i64 %35, 0
  br i1 %.not30, label %._crit_edge27, label %.lr.ph26

._crit_edge29:                                    ; preds = %47, %._crit_edge
  call void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  ret i32 0

._crit_edge27:                                    ; preds = %41, %.preheader
  %36 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %47 unwind label %50

.lr.ph26:                                         ; preds = %.preheader, %41
  %indvars.iv32 = phi i64 [ %indvars.iv.next33, %41 ], [ 0, %.preheader ]
  %37 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv35) #6
  %38 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIcSaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %37, i64 noundef %indvars.iv32) #6
  %39 = load i8, ptr %38, align 1, !tbaa !13
  %40 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext %39)
          to label %41 unwind label %45

41:                                               ; preds = %.lr.ph26
  %indvars.iv.next33 = add nuw nsw i64 %indvars.iv32, 1
  %42 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv35) #6
  %43 = call noundef i64 @_ZNKSt6vectorIcSaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %42) #6
  %44 = icmp ugt i64 %43, %indvars.iv.next33
  br i1 %44, label %.lr.ph26, label %._crit_edge27, !llvm.loop !14

45:                                               ; preds = %.lr.ph26
  %46 = landingpad { ptr, i32 }
          cleanup
  br label %52

47:                                               ; preds = %._crit_edge27
  %indvars.iv.next36 = add nuw nsw i64 %indvars.iv35, 1
  %48 = call noundef i64 @_ZNKSt6vectorIS_IcSaIcEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  %49 = icmp ugt i64 %48, %indvars.iv.next36
  br i1 %49, label %.preheader, label %._crit_edge29, !llvm.loop !15

50:                                               ; preds = %._crit_edge27
  %51 = landingpad { ptr, i32 }
          cleanup
  br label %52

52:                                               ; preds = %50, %45
  %.pn21 = phi { ptr, i32 } [ %46, %45 ], [ %51, %50 ]
  call void @_ZNSt6vectorIS_IcSaIcEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  br label %53

53:                                               ; preds = %52, %28
  %.pn21.pn = phi { ptr, i32 } [ %.pn21, %52 ], [ %.pn, %28 ]
  resume { ptr, i32 } %.pn21.pn
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #2 align 2

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 #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE6assignEmRKS5_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IcSaIcEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IcSaIcEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIcSaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt6vectorIcSaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; 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)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 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 #3 = { 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 #4 = { "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 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!10, !10, i64 0}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}


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