; LLVM IR from AnneLivia/Competitive-Programming :: Online Judges/URI/2683 (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::pair<int, std::pair<int, int>>, std::allocator<std::pair<int, std::pair<int, int>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, std::pair<int, int>>, std::allocator<std::pair<int, std::pair<int, int>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, std::pair<int, int>>, std::allocator<std::pair<int, std::pair<int, int>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, std::pair<int, int>>, std::allocator<std::pair<int, std::pair<int, 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<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 }
%"struct.std::pair" = type { i32, %"struct.std::pair.5" }
%"struct.std::pair.5" = type { i32, i32 }
%"class.std::reverse_iterator" = type { %"class.__gnu_cxx::__normal_iterator" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@v = external dso_local global %"class.std::vector", align 8
@id = external dso_local global %"class.std::vector.0", align 8
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z7kruskalv() #0

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

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6assignEmRKi(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; 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 i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %"struct.std::pair", align 4
  %8 = alloca %"struct.std::pair.5", align 4
  %9 = alloca %"class.std::reverse_iterator", align 8
  %10 = alloca %"class.std::reverse_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  store i32 0, ptr %6, align 4, !tbaa !5
  call void @_ZNSt6vectorIiSaIiEE6assignEmRKi(ptr noundef nonnull align 8 dereferenceable(24) @id, i64 noundef %15, ptr noundef nonnull align 4 dereferenceable(4) %6)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  br label %16

16:                                               ; preds = %20, %0
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = add nsw i32 %17, -1
  store i32 %18, ptr %2, align 4, !tbaa !5
  %19 = icmp ne i32 %17, 0
  br i1 %19, label %20, label %26

20:                                               ; preds = %16
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.4, ptr noundef %3, ptr noundef %4, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 12, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  %22 = load i32, ptr %3, align 4, !tbaa !5
  %23 = add nsw i32 %22, -1
  store i32 %23, ptr %3, align 4, !tbaa !5
  %24 = load i32, ptr %4, align 4, !tbaa !5
  %25 = add nsw i32 %24, -1
  store i32 %25, ptr %4, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %8, ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %4)
  call void @_ZNSt4pairIiS_IiiEEC2IiS0_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKiRKS0_(ptr noundef nonnull align 4 dereferenceable(12) %7, ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(8) %8)
  call void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE9push_backEOS2_(ptr noundef nonnull align 8 dereferenceable(24) @v, ptr noundef nonnull align 4 dereferenceable(12) %7)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 12, ptr %7) #6
  br label %16, !llvm.loop !9

26:                                               ; preds = %16
  call void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE6rbeginEv(ptr dead_on_unwind writable sret(%"class.std::reverse_iterator") align 8 %9, ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  call void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE4rendEv(ptr dead_on_unwind writable sret(%"class.std::reverse_iterator") align 8 %10, ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  call void @_ZSt4sortISt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPSt4pairIiS3_IiiEESt6vectorIS5_SaIS5_EEEEEEvT_SC_(ptr noundef %9, ptr noundef %10)
  %27 = call noundef i32 @_Z7kruskalv()
  %28 = call i32 (ptr, ...) @printf(ptr noundef @.str.5, i32 noundef %27)
  %29 = call ptr @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  %30 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %29, ptr %30, align 8
  %31 = call ptr @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  %32 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %31, ptr %32, align 8
  %33 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %34 = load ptr, ptr %33, align 8
  %35 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  %36 = load ptr, ptr %35, align 8
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiS2_IiiEESt6vectorIS4_SaIS4_EEEEEvT_SA_(ptr %34, ptr %36)
  %37 = call noundef i32 @_Z7kruskalv()
  %38 = call i32 (ptr, ...) @printf(ptr noundef @.str.5, i32 noundef %37)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE9push_backEOS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(12)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiS_IiiEEC2IiS0_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKiRKS0_(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortISt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPSt4pairIiS3_IiiEESt6vectorIS5_SaIS5_EEEEEEvT_SC_(ptr noundef, ptr noundef) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE4rendEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

declare i32 @printf(ptr noundef, ...) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiS2_IiiEESt6vectorIS4_SaIS4_EEEEEvT_SA_(ptr, ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #4 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 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 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; 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::pair<int, std::pair<int, int>>, std::allocator<std::pair<int, std::pair<int, int>>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, std::pair<int, int>>, std::allocator<std::pair<int, std::pair<int, int>>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, std::pair<int, int>>, std::allocator<std::pair<int, std::pair<int, int>>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, std::pair<int, int>>, std::allocator<std::pair<int, std::pair<int, 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<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 }
%"struct.std::pair" = type { i32, %"struct.std::pair.5" }
%"struct.std::pair.5" = type { i32, i32 }
%"class.std::reverse_iterator" = type { %"class.__gnu_cxx::__normal_iterator" }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@v = external dso_local global %"class.std::vector", align 8
@id = external dso_local global %"class.std::vector.0", align 8
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z7kruskalv() 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE6assignEmRKi(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::pair", align 4
  %7 = alloca %"struct.std::pair.5", align 4
  %8 = alloca %"class.std::reverse_iterator", align 8
  %9 = alloca %"class.std::reverse_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #6
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %11 = load i32, ptr %1, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @_ZNSt6vectorIiSaIiEE6assignEmRKi(ptr noundef nonnull align 8 dereferenceable(24) @id, i64 noundef %12, ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #6
  %13 = load i32, ptr %1, align 4, !tbaa !5
  %14 = add nsw i32 %13, -1
  store i32 %14, ptr %1, align 4, !tbaa !5
  %.not2 = icmp eq i32 %13, 0
  br i1 %.not2, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %.lr.ph
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.4, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef nonnull %4)
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %6) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #6
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = add nsw i32 %16, -1
  store i32 %17, ptr %2, align 4, !tbaa !5
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = add nsw i32 %18, -1
  store i32 %19, ptr %3, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %7, ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @_ZNSt4pairIiS_IiiEEC2IiS0_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKiRKS0_(ptr noundef nonnull align 4 dereferenceable(12) %6, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(8) %7)
  call void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE9push_backEOS2_(ptr noundef nonnull align 8 dereferenceable(24) @v, ptr noundef nonnull align 4 dereferenceable(12) %6)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %6) #6
  %20 = load i32, ptr %1, align 4, !tbaa !5
  %21 = add nsw i32 %20, -1
  store i32 %21, ptr %1, align 4, !tbaa !5
  %.not = icmp eq i32 %20, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE6rbeginEv(ptr dead_on_unwind nonnull writable sret(%"class.std::reverse_iterator") align 8 %8, ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  call void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE4rendEv(ptr dead_on_unwind nonnull writable sret(%"class.std::reverse_iterator") align 8 %9, ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  call void @_ZSt4sortISt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPSt4pairIiS3_IiiEESt6vectorIS5_SaIS5_EEEEEEvT_SC_(ptr noundef nonnull %8, ptr noundef nonnull %9)
  %22 = call noundef i32 @_Z7kruskalv()
  %23 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5, i32 noundef %22)
  %24 = call ptr @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  %25 = call ptr @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #6
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiS2_IiiEESt6vectorIS4_SaIS4_EEEEEvT_SA_(ptr %24, ptr %25)
  %26 = call noundef i32 @_Z7kruskalv()
  %27 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5, i32 noundef %26)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE9push_backEOS2_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(12)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiS_IiiEEC2IiS0_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS4_S5_EEEbE4typeELb1EEERKiRKS0_(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(8)) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortISt16reverse_iteratorIN9__gnu_cxx17__normal_iteratorIPSt4pairIiS3_IiiEESt6vectorIS5_SaIS5_EEEEEEvT_SC_(ptr noundef, ptr noundef) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE6rbeginEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE4rendEv(ptr dead_on_unwind noalias writable sret(%"class.std::reverse_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiS2_IiiEESt6vectorIS4_SaIS4_EEEEEvT_SA_(ptr, ptr) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiS0_IiiEESaIS2_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 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 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 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #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 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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