; LLVM IR from tangjz/acm-icpc :: codeforces/complete/1059E.ll (Z3dfsi)

; 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::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@sum = external dso_local global [100001 x i32], align 16
@ans = external dso_local global i32, align 4
@e = external dso_local global [100001 x %"class.std::vector"], align 16
@rem = external dso_local global [100001 x %"class.std::vector"], align 16
@sp = external dso_local global [2 x [100001 x %"class.std::set"]], align 16

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5mergeRSt3setIiSt4lessIiESaIiEES4_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(48)) #3

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dfsi(i32 noundef %0) #3 {
  %2 = alloca i32, align 4
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds ([2 x [100001 x %"class.std::set"]], ptr @sp, i64 0, i64 1), i64 0, i64 %13
  %15 = call { ptr, i8 } @_ZNSt3setIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48) %14, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %16 = getelementptr inbounds { ptr, i8 }, ptr %3, i32 0, i32 0
  %17 = extractvalue { ptr, i8 } %15, 0
  store ptr %17, ptr %16, align 8
  %18 = getelementptr inbounds { ptr, i8 }, ptr %3, i32 0, i32 1
  %19 = extractvalue { ptr, i8 } %15, 1
  store i8 %19, ptr %18, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %20 = load i32, ptr %2, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [100001 x %"class.std::vector"], ptr @e, i64 0, i64 %21
  store ptr %22, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %23 = load ptr, ptr %4, align 8, !tbaa !9
  %24 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %23) #4
  %25 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %5, i32 0, i32 0
  store ptr %24, ptr %25, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %26 = load ptr, ptr %4, align 8, !tbaa !9
  %27 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %26) #4
  %28 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  store ptr %27, ptr %28, align 8
  br label %29

29:                                               ; preds = %57, %1
  %30 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  br i1 %30, label %32, label %31

31:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br label %59

32:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  %33 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %34 = load i32, ptr %33, align 4, !tbaa !5
  store i32 %34, ptr %7, align 4, !tbaa !5
  %35 = load i32, ptr %7, align 4, !tbaa !5
  call void @_Z3dfsi(i32 noundef %35)
  %36 = load i32, ptr %7, align 4, !tbaa !5
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds [100001 x i32], ptr @sum, i64 0, i64 %37
  %39 = load i32, ptr %38, align 4, !tbaa !5
  %40 = load i32, ptr %2, align 4, !tbaa !5
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds [100001 x i32], ptr @sum, i64 0, i64 %41
  %43 = load i32, ptr %42, align 4, !tbaa !5
  %44 = add nsw i32 %43, %39
  store i32 %44, ptr %42, align 4, !tbaa !5
  %45 = load i32, ptr %2, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %46
  %48 = load i32, ptr %7, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %49
  call void @_Z5mergeRSt3setIiSt4lessIiESaIiEES4_(ptr noundef nonnull align 8 dereferenceable(48) %47, ptr noundef nonnull align 8 dereferenceable(48) %50)
  %51 = load i32, ptr %2, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds ([2 x [100001 x %"class.std::set"]], ptr @sp, i64 0, i64 1), i64 0, i64 %52
  %54 = load i32, ptr %7, align 4, !tbaa !5
  %55 = sext i32 %54 to i64
  %56 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds ([2 x [100001 x %"class.std::set"]], ptr @sp, i64 0, i64 1), i64 0, i64 %55
  call void @_Z5mergeRSt3setIiSt4lessIiESaIiEES4_(ptr noundef nonnull align 8 dereferenceable(48) %53, ptr noundef nonnull align 8 dereferenceable(48) %56)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %57

57:                                               ; preds = %32
  %58 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  br label %29

59:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %60 = load i32, ptr %2, align 4, !tbaa !5
  %61 = sext i32 %60 to i64
  %62 = getelementptr inbounds [100001 x %"class.std::vector"], ptr @rem, i64 0, i64 %61
  store ptr %62, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %63 = load ptr, ptr %8, align 8, !tbaa !9
  %64 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %63) #4
  %65 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %64, ptr %65, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %66 = load ptr, ptr %8, align 8, !tbaa !9
  %67 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %66) #4
  %68 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %67, ptr %68, align 8
  br label %69

69:                                               ; preds = %97, %59
  %70 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10) #4
  br i1 %70, label %72, label %71

71:                                               ; preds = %69
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  br label %99

72:                                               ; preds = %69
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  %73 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #4
  %74 = load i32, ptr %73, align 4, !tbaa !5
  store i32 %74, ptr %11, align 4, !tbaa !5
  %75 = load i32, ptr %2, align 4, !tbaa !5
  %76 = sext i32 %75 to i64
  %77 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %76
  %78 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(48) %77, ptr noundef nonnull align 4 dereferenceable(4) %11)
  %79 = icmp ne i64 %78, 0
  br i1 %79, label %80, label %85

80:                                               ; preds = %72
  %81 = load i32, ptr %2, align 4, !tbaa !5
  %82 = sext i32 %81 to i64
  %83 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %82
  %84 = call noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48) %83, ptr noundef nonnull align 4 dereferenceable(4) %11)
  br label %85

85:                                               ; preds = %80, %72
  %86 = load i32, ptr %2, align 4, !tbaa !5
  %87 = sext i32 %86 to i64
  %88 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds ([2 x [100001 x %"class.std::set"]], ptr @sp, i64 0, i64 1), i64 0, i64 %87
  %89 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(48) %88, ptr noundef nonnull align 4 dereferenceable(4) %11)
  %90 = icmp ne i64 %89, 0
  br i1 %90, label %91, label %96

91:                                               ; preds = %85
  %92 = load i32, ptr %2, align 4, !tbaa !5
  %93 = sext i32 %92 to i64
  %94 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds ([2 x [100001 x %"class.std::set"]], ptr @sp, i64 0, i64 1), i64 0, i64 %93
  %95 = call noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48) %94, ptr noundef nonnull align 4 dereferenceable(4) %11)
  br label %96

96:                                               ; preds = %91, %85
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  br label %97

97:                                               ; preds = %96
  %98 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %9) #4
  br label %69

99:                                               ; preds = %71
  %100 = load i32, ptr %2, align 4, !tbaa !5
  %101 = sext i32 %100 to i64
  %102 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %101
  %103 = call noundef zeroext i1 @_ZNKSt3setIiSt4lessIiESaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48) %102) #4
  br i1 %103, label %104, label %118

104:                                              ; preds = %99
  %105 = load i32, ptr %2, align 4, !tbaa !5
  %106 = sext i32 %105 to i64
  %107 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds ([2 x [100001 x %"class.std::set"]], ptr @sp, i64 0, i64 1), i64 0, i64 %106
  %108 = call noundef zeroext i1 @_ZNKSt3setIiSt4lessIiESaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48) %107) #4
  br i1 %108, label %118, label %109

109:                                              ; preds = %104
  %110 = load i32, ptr @ans, align 4, !tbaa !5
  %111 = add nsw i32 %110, 1
  store i32 %111, ptr @ans, align 4, !tbaa !5
  %112 = load i32, ptr %2, align 4, !tbaa !5
  %113 = sext i32 %112 to i64
  %114 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %113
  %115 = load i32, ptr %2, align 4, !tbaa !5
  %116 = sext i32 %115 to i64
  %117 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds ([2 x [100001 x %"class.std::set"]], ptr @sp, i64 0, i64 1), i64 0, i64 %116
  call void @_Z5mergeRSt3setIiSt4lessIiESaIiEES4_(ptr noundef nonnull align 8 dereferenceable(48) %114, ptr noundef nonnull align 8 dereferenceable(48) %117)
  br label %118

118:                                              ; preds = %109, %104, %99
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt3setIiSt4lessIiESaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #3 = { 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 #4 = { 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 = !{!"any pointer", !7, i64 0}


; 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::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, int, std::_Identity<int>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@sum = external dso_local local_unnamed_addr global [100001 x i32], align 16
@ans = external dso_local local_unnamed_addr global i32, align 4
@e = external dso_local global [100001 x %"class.std::vector"], align 16
@rem = external dso_local global [100001 x %"class.std::vector"], align 16
@sp = external dso_local global [2 x [100001 x %"class.std::set"]], align 16

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5mergeRSt3setIiSt4lessIiESaIiEES4_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dfsi(i32 noundef %0) local_unnamed_addr #3 {
  %2 = alloca i32, align 4
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  %8 = sext i32 %0 to i64
  %9 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds (i8, ptr @sp, i64 4800048), i64 0, i64 %8
  %10 = call { ptr, i8 } @_ZNSt3setIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48) %9, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds [100001 x %"class.std::vector"], ptr @e, i64 0, i64 %12
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %14 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #4
  store ptr %14, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %15 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %13) #4
  store ptr %15, ptr %4, align 8
  %16 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  br i1 %16, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [100001 x %"class.std::vector"], ptr @rem, i64 0, i64 %18
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %20 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %19) #4
  store ptr %20, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %21 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %19) #4
  store ptr %21, ptr %6, align 8
  %22 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  br i1 %22, label %.lr.ph9, label %._crit_edge10

.lr.ph:                                           ; preds = %1, %.lr.ph
  %23 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #4
  %24 = load i32, ptr %23, align 4, !tbaa !5
  call void @_Z3dfsi(i32 noundef %24)
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [100001 x i32], ptr @sum, i64 0, i64 %25
  %27 = load i32, ptr %26, align 4, !tbaa !5
  %28 = load i32, ptr %2, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [100001 x i32], ptr @sum, i64 0, i64 %29
  %31 = load i32, ptr %30, align 4, !tbaa !5
  %32 = add nsw i32 %31, %27
  store i32 %32, ptr %30, align 4, !tbaa !5
  %33 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %29
  %34 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %25
  call void @_Z5mergeRSt3setIiSt4lessIiESaIiEES4_(ptr noundef nonnull align 8 dereferenceable(48) %33, ptr noundef nonnull align 8 dereferenceable(48) %34)
  %35 = load i32, ptr %2, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds (i8, ptr @sp, i64 4800048), i64 0, i64 %36
  %38 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds (i8, ptr @sp, i64 4800048), i64 0, i64 %25
  call void @_Z5mergeRSt3setIiSt4lessIiESaIiEES4_(ptr noundef nonnull align 8 dereferenceable(48) %37, ptr noundef nonnull align 8 dereferenceable(48) %38)
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #4
  %40 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  br i1 %40, label %.lr.ph, label %._crit_edge

._crit_edge10:                                    ; preds = %66, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  %41 = load i32, ptr %2, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %42
  %44 = call noundef zeroext i1 @_ZNKSt3setIiSt4lessIiESaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48) %43) #4
  br i1 %44, label %69, label %81

.lr.ph9:                                          ; preds = %._crit_edge, %66
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #4
  %45 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %46 = load i32, ptr %45, align 4, !tbaa !5
  store i32 %46, ptr %7, align 4, !tbaa !5
  %47 = load i32, ptr %2, align 4, !tbaa !5
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %48
  %50 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(48) %49, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %.not = icmp eq i64 %50, 0
  br i1 %.not, label %56, label %51

51:                                               ; preds = %.lr.ph9
  %52 = load i32, ptr %2, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %53
  %55 = call noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48) %54, ptr noundef nonnull align 4 dereferenceable(4) %7)
  br label %56

56:                                               ; preds = %51, %.lr.ph9
  %57 = load i32, ptr %2, align 4, !tbaa !5
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds (i8, ptr @sp, i64 4800048), i64 0, i64 %58
  %60 = call noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(48) %59, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %.not7 = icmp eq i64 %60, 0
  br i1 %.not7, label %66, label %61

61:                                               ; preds = %56
  %62 = load i32, ptr %2, align 4, !tbaa !5
  %63 = sext i32 %62 to i64
  %64 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds (i8, ptr @sp, i64 4800048), i64 0, i64 %63
  %65 = call noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48) %64, ptr noundef nonnull align 4 dereferenceable(4) %7)
  br label %66

66:                                               ; preds = %61, %56
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  %67 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %68 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  br i1 %68, label %.lr.ph9, label %._crit_edge10

69:                                               ; preds = %._crit_edge10
  %70 = load i32, ptr %2, align 4, !tbaa !5
  %71 = sext i32 %70 to i64
  %72 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds (i8, ptr @sp, i64 4800048), i64 0, i64 %71
  %73 = call noundef zeroext i1 @_ZNKSt3setIiSt4lessIiESaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48) %72) #4
  br i1 %73, label %81, label %74

74:                                               ; preds = %69
  %75 = load i32, ptr @ans, align 4, !tbaa !5
  %76 = add nsw i32 %75, 1
  store i32 %76, ptr @ans, align 4, !tbaa !5
  %77 = load i32, ptr %2, align 4, !tbaa !5
  %78 = sext i32 %77 to i64
  %79 = getelementptr inbounds [100001 x %"class.std::set"], ptr @sp, i64 0, i64 %78
  %80 = getelementptr inbounds [100001 x %"class.std::set"], ptr getelementptr inbounds (i8, ptr @sp, i64 4800048), i64 0, i64 %78
  call void @_Z5mergeRSt3setIiSt4lessIiESaIiEES4_(ptr noundef nonnull align 8 dereferenceable(48) %79, ptr noundef nonnull align 8 dereferenceable(48) %80)
  br label %81

81:                                               ; preds = %74, %69, %._crit_edge10
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIiSt4lessIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt3setIiSt4lessIiESaIiEE5eraseERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt3setIiSt4lessIiESaIiEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

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


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