; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/316 Division 2/Problem D (D)

; 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::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_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::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.8" = type { ptr }
%"struct.std::pair" = type { i32, i32 }

@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@p = external dso_local global i32, align 4
@v = external dso_local global i32, align 4
@h = external dso_local global i32, align 4
@g = external dso_local global [500100 x %"class.std::vector"], align 16
@d = external dso_local global [500100 x %"class.std::vector.0"], align 16
@_Z1sB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@f = external dso_local global [500100 x i32], align 16
@l = external dso_local global [500100 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3dfsii(i32 noundef, i32 noundef) #0

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

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #0

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %8 = alloca %"struct.std::pair", align 4
  %9 = alloca i32, align 4
  %10 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %11 = alloca i32, align 4
  %12 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %13 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %14 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %15 = alloca %"struct.std::pair", align 4
  %16 = alloca i32, align 4
  %17 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %18 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %19 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %20 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %21 = getelementptr i8, ptr %20, i64 -24
  %22 = load i64, ptr %21, align 8
  %23 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %22
  %24 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %23, ptr noundef null)
  %25 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %26 = getelementptr i8, ptr %25, i64 -24
  %27 = load i64, ptr %26, align 8
  %28 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %27
  %29 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %28, ptr noundef null)
  %30 = 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)
  %31 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %30, ptr noundef nonnull align 4 dereferenceable(4) @m)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  store i32 2, ptr %2, align 4, !tbaa !8
  br label %32

32:                                               ; preds = %42, %0
  %33 = load i32, ptr %2, align 4, !tbaa !8
  %34 = load i32, ptr @n, align 4, !tbaa !8
  %35 = icmp sle i32 %33, %34
  br i1 %35, label %37, label %36

36:                                               ; preds = %32
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %45

37:                                               ; preds = %32
  %38 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @p)
  %39 = load i32, ptr @p, align 4, !tbaa !8
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [500100 x %"class.std::vector"], ptr @g, i64 0, i64 %40
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %41, ptr noundef nonnull align 4 dereferenceable(4) %2)
  br label %42

42:                                               ; preds = %37
  %43 = load i32, ptr %2, align 4, !tbaa !8
  %44 = add nsw i32 %43, 1
  store i32 %44, ptr %2, align 4, !tbaa !8
  br label %32, !llvm.loop !11

45:                                               ; preds = %36
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  store i32 1, ptr %3, align 4, !tbaa !8
  br label %46

46:                                               ; preds = %55, %45
  %47 = load i32, ptr %3, align 4, !tbaa !8
  %48 = load i32, ptr @n, align 4, !tbaa !8
  %49 = icmp sle i32 %47, %48
  br i1 %49, label %51, label %50

50:                                               ; preds = %46
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  br label %58

51:                                               ; preds = %46
  %52 = load i32, ptr %3, align 4, !tbaa !8
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %53
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %54, i64 noundef 1)
  br label %55

55:                                               ; preds = %51
  %56 = load i32, ptr %3, align 4, !tbaa !8
  %57 = add nsw i32 %56, 1
  store i32 %57, ptr %3, align 4, !tbaa !8
  br label %46, !llvm.loop !13

58:                                               ; preds = %50
  %59 = 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) @_Z1sB5cxx11)
  call void @_Z3dfsii(i32 noundef 1, i32 noundef 1)
  br label %60

60:                                               ; preds = %155, %58
  %61 = load i32, ptr @m, align 4, !tbaa !8
  %62 = add nsw i32 %61, -1
  store i32 %62, ptr @m, align 4, !tbaa !8
  %63 = icmp ne i32 %61, 0
  br i1 %63, label %64, label %156

64:                                               ; preds = %60
  %65 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @v)
  %66 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %65, ptr noundef nonnull align 4 dereferenceable(4) @h)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #7
  %67 = load i32, ptr @h, align 4, !tbaa !8
  %68 = sext i32 %67 to i64
  %69 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %68
  %70 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %69) #7
  %71 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %6, i32 0, i32 0
  store ptr %70, ptr %71, align 8
  %72 = load i32, ptr @h, align 4, !tbaa !8
  %73 = sext i32 %72 to i64
  %74 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %73
  %75 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %74) #7
  %76 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %7, i32 0, i32 0
  store ptr %75, ptr %76, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #7
  %77 = load i32, ptr @v, align 4, !tbaa !8
  %78 = sext i32 %77 to i64
  %79 = getelementptr inbounds [500100 x i32], ptr @f, i64 0, i64 %78
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  store i32 -1, ptr %9, align 4, !tbaa !8
  %80 = call i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %79, ptr noundef nonnull align 4 dereferenceable(4) %9)
  store i64 %80, ptr %8, align 4
  %81 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %6, i32 0, i32 0
  %82 = load ptr, ptr %81, align 8
  %83 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %7, i32 0, i32 0
  %84 = load ptr, ptr %83, align 8
  %85 = call ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr %82, ptr %84, ptr noundef nonnull align 4 dereferenceable(8) %8)
  %86 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %5, i32 0, i32 0
  store ptr %85, ptr %86, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  %87 = load i32, ptr @h, align 4, !tbaa !8
  %88 = sext i32 %87 to i64
  %89 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %88
  %90 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %89) #7
  %91 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %10, i32 0, i32 0
  store ptr %90, ptr %91, align 8
  %92 = call noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  %93 = sub nsw i64 %92, 1
  %94 = trunc i64 %93 to i32
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #7
  store i32 %94, ptr %4, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #7
  %95 = load i32, ptr @h, align 4, !tbaa !8
  %96 = sext i32 %95 to i64
  %97 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %96
  %98 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %97) #7
  %99 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %13, i32 0, i32 0
  store ptr %98, ptr %99, align 8
  %100 = load i32, ptr @h, align 4, !tbaa !8
  %101 = sext i32 %100 to i64
  %102 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %101
  %103 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %102) #7
  %104 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %14, i32 0, i32 0
  store ptr %103, ptr %104, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #7
  %105 = load i32, ptr @v, align 4, !tbaa !8
  %106 = sext i32 %105 to i64
  %107 = getelementptr inbounds [500100 x i32], ptr @l, i64 0, i64 %106
  call void @llvm.lifetime.start.p0(i64 4, ptr %16) #7
  store i32 -1, ptr %16, align 4, !tbaa !8
  %108 = call i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %107, ptr noundef nonnull align 4 dereferenceable(4) %16)
  store i64 %108, ptr %15, align 4
  %109 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %13, i32 0, i32 0
  %110 = load ptr, ptr %109, align 8
  %111 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %14, i32 0, i32 0
  %112 = load ptr, ptr %111, align 8
  %113 = call ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr %110, ptr %112, ptr noundef nonnull align 4 dereferenceable(8) %15)
  %114 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %12, i32 0, i32 0
  store ptr %113, ptr %114, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #7
  %115 = load i32, ptr @h, align 4, !tbaa !8
  %116 = sext i32 %115 to i64
  %117 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %116
  %118 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %117) #7
  %119 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.8", ptr %17, i32 0, i32 0
  store ptr %118, ptr %119, align 8
  %120 = call noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8) %12, ptr noundef nonnull align 8 dereferenceable(8) %17) #7
  %121 = sub nsw i64 %120, 1
  %122 = trunc i64 %121 to i32
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %16) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #7
  store i32 %122, ptr %11, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #7
  %123 = load i32, ptr @h, align 4, !tbaa !8
  %124 = sext i32 %123 to i64
  %125 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %124
  %126 = load i32, ptr %4, align 4, !tbaa !8
  %127 = sext i32 %126 to i64
  %128 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %125, i64 noundef %127) #7
  %129 = getelementptr inbounds %"struct.std::pair", ptr %128, i32 0, i32 1
  %130 = load i32, ptr %129, align 4, !tbaa !14
  %131 = load i32, ptr @h, align 4, !tbaa !8
  %132 = sext i32 %131 to i64
  %133 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %132
  %134 = load i32, ptr %11, align 4, !tbaa !8
  %135 = sext i32 %134 to i64
  %136 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %133, i64 noundef %135) #7
  %137 = getelementptr inbounds %"struct.std::pair", ptr %136, i32 0, i32 1
  %138 = load i32, ptr %137, align 4, !tbaa !14
  %139 = xor i32 %130, %138
  store i32 %139, ptr %18, align 4, !tbaa !8
  %140 = load i32, ptr %18, align 4, !tbaa !8
  %141 = icmp eq i32 %140, 0
  br i1 %141, label %142, label %144

142:                                              ; preds = %64
  %143 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  br label %155

144:                                              ; preds = %64
  %145 = load i32, ptr %18, align 4, !tbaa !8
  %146 = load i32, ptr %18, align 4, !tbaa !8
  %147 = sub nsw i32 %146, 1
  %148 = and i32 %145, %147
  %149 = icmp eq i32 %148, 0
  br i1 %149, label %150, label %152

150:                                              ; preds = %144
  %151 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  br label %154

152:                                              ; preds = %144
  %153 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.5)
  br label %154

154:                                              ; preds = %152, %150
  br label %155

155:                                              ; preds = %154, %142
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  br label %60, !llvm.loop !16

156:                                              ; preds = %60
  ret i32 0
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #4 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)) #3

; 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: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 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)) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr, ptr, ptr noundef nonnull align 4 dereferenceable(8)) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #6

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 #6 = { 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 #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 = !{!"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 = distinct !{!13, !12}
!14 = !{!15, !9, i64 4}
!15 = !{!"_ZTSSt4pairIiiE", !9, i64 0, !9, i64 4}
!16 = distinct !{!16, !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<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::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_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::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.8" = type { ptr }
%"struct.std::pair" = type { i32, i32 }

@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@p = external dso_local global i32, align 4
@v = external dso_local global i32, align 4
@h = external dso_local global i32, align 4
@g = external dso_local global [500100 x %"class.std::vector"], align 16
@d = external dso_local global [500100 x %"class.std::vector.0"], align 16
@_Z1sB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@f = external dso_local global [500100 x i32], align 16
@l = external dso_local global [500100 x i32], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3dfsii(i32 noundef, i32 noundef) local_unnamed_addr #0

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

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca i32, align 4
  %5 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %7 = alloca %"struct.std::pair", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.__gnu_cxx::__normal_iterator.8", align 8
  %10 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %11 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %12 = getelementptr i8, ptr %11, i64 -24
  %13 = load i64, ptr %12, align 8
  %14 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %13
  %15 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %14, ptr noundef null)
  %16 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %17 = getelementptr i8, ptr %16, i64 -24
  %18 = load i64, ptr %17, align 8
  %19 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %18
  %20 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %19, ptr noundef null)
  %21 = 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)
  %22 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %21, ptr noundef nonnull align 4 dereferenceable(4) @m)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #8
  store i32 2, ptr %1, align 4, !tbaa !8
  %23 = load i32, ptr @n, align 4, !tbaa !8
  %.not15 = icmp slt i32 %23, 2
  br i1 %.not15, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %0
  %24 = phi i32 [ %23, %0 ], [ %31, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #8
  %.not1216 = icmp slt i32 %24, 1
  br i1 %.not1216, label %._crit_edge20, label %.lr.ph19

.lr.ph:                                           ; preds = %0, %.lr.ph
  %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) @p)
  %26 = load i32, ptr @p, align 4, !tbaa !8
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [500100 x %"class.std::vector"], ptr @g, i64 0, i64 %27
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %28, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %29 = load i32, ptr %1, align 4, !tbaa !8
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %1, align 4, !tbaa !8
  %31 = load i32, ptr @n, align 4, !tbaa !8
  %.not.not = icmp slt i32 %29, %31
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge20:                                    ; preds = %.lr.ph19, %._crit_edge
  %32 = 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) @_Z1sB5cxx11)
  call void @_Z3dfsii(i32 noundef 1, i32 noundef 1)
  %33 = load i32, ptr @m, align 4, !tbaa !8
  %34 = add nsw i32 %33, -1
  store i32 %34, ptr @m, align 4, !tbaa !8
  %.not1321 = icmp eq i32 %33, 0
  br i1 %.not1321, label %._crit_edge24, label %.lr.ph23

.lr.ph19:                                         ; preds = %._crit_edge, %.lr.ph19
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph19 ], [ 1, %._crit_edge ]
  %35 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %indvars.iv
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %35, i64 noundef 1)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %36 = load i32, ptr @n, align 4, !tbaa !8
  %37 = sext i32 %36 to i64
  %.not12.not = icmp slt i64 %indvars.iv, %37
  br i1 %.not12.not, label %.lr.ph19, label %._crit_edge20, !llvm.loop !13

.lr.ph23:                                         ; preds = %._crit_edge20, %97
  %38 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @v)
  %39 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %38, ptr noundef nonnull align 4 dereferenceable(4) @h)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #8
  %40 = load i32, ptr @h, align 4, !tbaa !8
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %41
  %43 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %42) #8
  %44 = load i32, ptr @h, align 4, !tbaa !8
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %45
  %47 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %46) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #8
  %48 = load i32, ptr @v, align 4, !tbaa !8
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [500100 x i32], ptr @f, i64 0, i64 %49
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #8
  store i32 -1, ptr %4, align 4, !tbaa !8
  %51 = call i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %50, ptr noundef nonnull align 4 dereferenceable(4) %4)
  store i64 %51, ptr %3, align 8
  %52 = call ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr %43, ptr %47, ptr noundef nonnull align 4 dereferenceable(8) %3)
  store ptr %52, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #8
  %53 = load i32, ptr @h, align 4, !tbaa !8
  %54 = sext i32 %53 to i64
  %55 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %54
  %56 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %55) #8
  store ptr %56, ptr %5, align 8
  %57 = call noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %5) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #8
  %58 = load i32, ptr @h, align 4, !tbaa !8
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %59
  %61 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %60) #8
  %62 = load i32, ptr @h, align 4, !tbaa !8
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %63
  %65 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %64) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #8
  %66 = load i32, ptr @v, align 4, !tbaa !8
  %67 = sext i32 %66 to i64
  %68 = getelementptr inbounds [500100 x i32], ptr @l, i64 0, i64 %67
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #8
  store i32 -1, ptr %8, align 4, !tbaa !8
  %69 = call i64 @_ZSt9make_pairIRiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %68, ptr noundef nonnull align 4 dereferenceable(4) %8)
  store i64 %69, ptr %7, align 8
  %70 = call ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr %61, ptr %65, ptr noundef nonnull align 4 dereferenceable(8) %7)
  store ptr %70, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #8
  %71 = load i32, ptr @h, align 4, !tbaa !8
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %72
  %74 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %73) #8
  store ptr %74, ptr %9, align 8
  %75 = call noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %9) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #8
  %76 = load i32, ptr @h, align 4, !tbaa !8
  %77 = sext i32 %76 to i64
  %78 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %77
  %79 = shl i64 %57, 32
  %sext = add i64 %79, -4294967296
  %80 = ashr exact i64 %sext, 32
  %81 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %78, i64 noundef %80) #8
  %82 = getelementptr inbounds i8, ptr %81, i64 4
  %83 = load i32, ptr %82, align 4, !tbaa !14
  %84 = load i32, ptr @h, align 4, !tbaa !8
  %85 = sext i32 %84 to i64
  %86 = getelementptr inbounds [500100 x %"class.std::vector.0"], ptr @d, i64 0, i64 %85
  %87 = shl i64 %75, 32
  %sext14 = add i64 %87, -4294967296
  %88 = ashr exact i64 %sext14, 32
  %89 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %86, i64 noundef %88) #8
  %90 = getelementptr inbounds i8, ptr %89, i64 4
  %91 = load i32, ptr %90, align 4, !tbaa !14
  %92 = icmp eq i32 %83, %91
  br i1 %92, label %97, label %93

93:                                               ; preds = %.lr.ph23
  %94 = xor i32 %91, %83
  %95 = call range(i32 0, 33) i32 @llvm.ctpop.i32(i32 %94)
  %96 = icmp ult i32 %95, 2
  %.str..str.5 = select i1 %96, ptr @.str, ptr @.str.5
  br label %97

97:                                               ; preds = %93, %.lr.ph23
  %.str.sink = phi ptr [ @.str, %.lr.ph23 ], [ %.str..str.5, %93 ]
  %98 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull %.str.sink)
  %99 = load i32, ptr @m, align 4, !tbaa !8
  %100 = add nsw i32 %99, -1
  store i32 %100, ptr @m, align 4, !tbaa !8
  %.not13 = icmp eq i32 %99, 0
  br i1 %.not13, label %._crit_edge24, label %.lr.ph23, !llvm.loop !16

._crit_edge24:                                    ; preds = %97, %._crit_edge20
  ret i32 0
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #4 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 #3

; 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: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 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 #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr, ptr, ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #6

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.ctpop.i32(i32) #7

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 #6 = { 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 #7 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #8 = { 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 = distinct !{!13, !12}
!14 = !{!15, !9, i64 4}
!15 = !{!"_ZTSSt4pairIiiE", !9, i64 0, !9, i64 4}
!16 = distinct !{!16, !12}


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