; LLVM IR from xirc/cp-algorithm :: codeforces/449B (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::vector<edge>, std::allocator<std::vector<edge>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<edge>, std::allocator<std::vector<edge>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<edge>, std::allocator<std::vector<edge>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<edge>, std::allocator<std::vector<edge>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::vector.22" = type { %"struct.std::_Vector_base.23" }
%"struct.std::_Vector_base.23" = type { %"struct.std::_Vector_base<edge, std::allocator<edge>>::_Vector_impl" }
%"struct.std::_Vector_base<edge, std::allocator<edge>>::_Vector_impl" = type { %"struct.std::_Vector_base<edge, std::allocator<edge>>::_Vector_impl_data" }
%"struct.std::_Vector_base<edge, std::allocator<edge>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%struct.edge = type { i32, i32, i32 }

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@K = external dso_local global i32, align 4
@adj = external dso_local global %"class.std::vector", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z5solvev() #0

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

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::vector.22", align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca %struct.edge, align 4
  %10 = alloca %struct.edge, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca %struct.edge, align 4
  %15 = alloca %struct.edge, align 4
  store i32 0, ptr %1, align 4
  %16 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %17 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %18 = getelementptr i8, ptr %17, i64 -24
  %19 = load i64, ptr %18, align 8
  %20 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %19
  %21 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %20, ptr noundef null)
  %22 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %23 = getelementptr i8, ptr %22, i64 -24
  %24 = load i64, ptr %23, align 8
  %25 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %24
  %26 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %25, ptr noundef null)
  %27 = 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)
  %28 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %27, ptr noundef nonnull align 4 dereferenceable(4) @M)
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %28, ptr noundef nonnull align 4 dereferenceable(4) @K)
  %30 = load i32, ptr @N, align 4, !tbaa !8
  %31 = sext i32 %30 to i64
  call void @llvm.lifetime.start.p0(i64 24, ptr %2) #7
  call void @llvm.memset.p0.i64(ptr align 8 %2, i8 0, i64 24, i1 false)
  call void @_ZNSt6vectorI4edgeSaIS0_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  invoke void @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EE6assignEmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %31, ptr noundef nonnull align 8 dereferenceable(24) %2)
          to label %32 unwind label %38

32:                                               ; preds = %0
  call void @_ZNSt6vectorI4edgeSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  store i32 0, ptr %5, align 4, !tbaa !8
  br label %33

33:                                               ; preds = %66, %32
  %34 = load i32, ptr %5, align 4, !tbaa !8
  %35 = load i32, ptr @M, align 4, !tbaa !8
  %36 = icmp slt i32 %34, %35
  br i1 %36, label %42, label %37

37:                                               ; preds = %33
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  br label %69

38:                                               ; preds = %0
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %3, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %4, align 4
  call void @_ZNSt6vectorI4edgeSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %2) #7
  br label %102

42:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %44 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %43, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %45 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %44, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %46 = load i32, ptr %6, align 4, !tbaa !8
  %47 = add nsw i32 %46, -1
  store i32 %47, ptr %6, align 4, !tbaa !8
  %48 = load i32, ptr %7, align 4, !tbaa !8
  %49 = add nsw i32 %48, -1
  store i32 %49, ptr %7, align 4, !tbaa !8
  %50 = load i32, ptr %6, align 4, !tbaa !8
  %51 = sext i32 %50 to i64
  %52 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %51) #7
  call void @llvm.lifetime.start.p0(i64 12, ptr %9) #7
  %53 = getelementptr inbounds %struct.edge, ptr %9, i32 0, i32 0
  %54 = load i32, ptr %7, align 4, !tbaa !8
  store i32 %54, ptr %53, align 4, !tbaa !11
  %55 = getelementptr inbounds %struct.edge, ptr %9, i32 0, i32 1
  %56 = load i32, ptr %8, align 4, !tbaa !8
  store i32 %56, ptr %55, align 4, !tbaa !13
  %57 = getelementptr inbounds %struct.edge, ptr %9, i32 0, i32 2
  store i32 -1, ptr %57, align 4, !tbaa !14
  call void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %52, ptr noundef nonnull align 4 dereferenceable(12) %9)
  call void @llvm.lifetime.end.p0(i64 12, ptr %9) #7
  %58 = load i32, ptr %7, align 4, !tbaa !8
  %59 = sext i32 %58 to i64
  %60 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %59) #7
  call void @llvm.lifetime.start.p0(i64 12, ptr %10) #7
  %61 = getelementptr inbounds %struct.edge, ptr %10, i32 0, i32 0
  %62 = load i32, ptr %6, align 4, !tbaa !8
  store i32 %62, ptr %61, align 4, !tbaa !11
  %63 = getelementptr inbounds %struct.edge, ptr %10, i32 0, i32 1
  %64 = load i32, ptr %8, align 4, !tbaa !8
  store i32 %64, ptr %63, align 4, !tbaa !13
  %65 = getelementptr inbounds %struct.edge, ptr %10, i32 0, i32 2
  store i32 -1, ptr %65, align 4, !tbaa !14
  call void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %60, ptr noundef nonnull align 4 dereferenceable(12) %10)
  call void @llvm.lifetime.end.p0(i64 12, ptr %10) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %66

66:                                               ; preds = %42
  %67 = load i32, ptr %5, align 4, !tbaa !8
  %68 = add nsw i32 %67, 1
  store i32 %68, ptr %5, align 4, !tbaa !8
  br label %33, !llvm.loop !15

69:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #7
  store i32 0, ptr %11, align 4, !tbaa !8
  br label %70

70:                                               ; preds = %95, %69
  %71 = load i32, ptr %11, align 4, !tbaa !8
  %72 = load i32, ptr @K, align 4, !tbaa !8
  %73 = icmp slt i32 %71, %72
  br i1 %73, label %75, label %74

74:                                               ; preds = %70
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  br label %98

75:                                               ; preds = %70
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #7
  %76 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %12)
  %77 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %76, ptr noundef nonnull align 4 dereferenceable(4) %13)
  %78 = load i32, ptr %12, align 4, !tbaa !8
  %79 = add nsw i32 %78, -1
  store i32 %79, ptr %12, align 4, !tbaa !8
  %80 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef 0) #7
  call void @llvm.lifetime.start.p0(i64 12, ptr %14) #7
  %81 = getelementptr inbounds %struct.edge, ptr %14, i32 0, i32 0
  %82 = load i32, ptr %12, align 4, !tbaa !8
  store i32 %82, ptr %81, align 4, !tbaa !11
  %83 = getelementptr inbounds %struct.edge, ptr %14, i32 0, i32 1
  %84 = load i32, ptr %13, align 4, !tbaa !8
  store i32 %84, ptr %83, align 4, !tbaa !13
  %85 = getelementptr inbounds %struct.edge, ptr %14, i32 0, i32 2
  %86 = load i32, ptr %11, align 4, !tbaa !8
  store i32 %86, ptr %85, align 4, !tbaa !14
  call void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %80, ptr noundef nonnull align 4 dereferenceable(12) %14)
  call void @llvm.lifetime.end.p0(i64 12, ptr %14) #7
  %87 = load i32, ptr %12, align 4, !tbaa !8
  %88 = sext i32 %87 to i64
  %89 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %88) #7
  call void @llvm.lifetime.start.p0(i64 12, ptr %15) #7
  %90 = getelementptr inbounds %struct.edge, ptr %15, i32 0, i32 0
  store i32 0, ptr %90, align 4, !tbaa !11
  %91 = getelementptr inbounds %struct.edge, ptr %15, i32 0, i32 1
  %92 = load i32, ptr %13, align 4, !tbaa !8
  store i32 %92, ptr %91, align 4, !tbaa !13
  %93 = getelementptr inbounds %struct.edge, ptr %15, i32 0, i32 2
  %94 = load i32, ptr %11, align 4, !tbaa !8
  store i32 %94, ptr %93, align 4, !tbaa !14
  call void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %89, ptr noundef nonnull align 4 dereferenceable(12) %15)
  call void @llvm.lifetime.end.p0(i64 12, ptr %15) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %95

95:                                               ; preds = %75
  %96 = load i32, ptr %11, align 4, !tbaa !8
  %97 = add nsw i32 %96, 1
  store i32 %97, ptr %11, align 4, !tbaa !8
  br label %70, !llvm.loop !17

98:                                               ; preds = %74
  %99 = call noundef i32 @_Z5solvev()
  %100 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %99)
  %101 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %100, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret i32 0

102:                                              ; preds = %38
  %103 = load ptr, ptr %3, align 8
  %104 = load i32, ptr %4, align 4
  %105 = insertvalue { ptr, i32 } poison, ptr %103, 0
  %106 = insertvalue { ptr, i32 } %105, i32 %104, 1
  resume { ptr, i32 } %106
}

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

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

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EE6assignEmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorI4edgeSaIS0_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorI4edgeSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(12)) #0 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #4

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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 = !{!12, !9, i64 0}
!12 = !{!"_ZTS4edge", !9, i64 0, !9, i64 4, !9, i64 8}
!13 = !{!12, !9, i64 4}
!14 = !{!12, !9, i64 8}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = distinct !{!17, !16}


; 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::vector<edge>, std::allocator<std::vector<edge>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<edge>, std::allocator<std::vector<edge>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<edge>, std::allocator<std::vector<edge>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<edge>, std::allocator<std::vector<edge>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::vector.22" = type { %"struct.std::_Vector_base.23" }
%"struct.std::_Vector_base.23" = type { %"struct.std::_Vector_base<edge, std::allocator<edge>>::_Vector_impl" }
%"struct.std::_Vector_base<edge, std::allocator<edge>>::_Vector_impl" = type { %"struct.std::_Vector_base<edge, std::allocator<edge>>::_Vector_impl_data" }
%"struct.std::_Vector_base<edge, std::allocator<edge>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%struct.edge = type { i32, i32, i32 }

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@K = external dso_local global i32, align 4
@adj = external dso_local global %"class.std::vector", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z5solvev() local_unnamed_addr #0

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

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector.22", align 8
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %struct.edge, align 4
  %6 = alloca %struct.edge, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca %struct.edge, align 4
  %10 = alloca %struct.edge, align 4
  %11 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %12 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %13 = getelementptr i8, ptr %12, i64 -24
  %14 = load i64, ptr %13, align 8
  %15 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %14
  %16 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %15, ptr noundef null)
  %17 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %18 = getelementptr i8, ptr %17, i64 -24
  %19 = load i64, ptr %18, align 8
  %20 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %19
  %21 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %20, ptr noundef null)
  %22 = 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)
  %23 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %22, ptr noundef nonnull align 4 dereferenceable(4) @M)
  %24 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %23, ptr noundef nonnull align 4 dereferenceable(4) @K)
  %25 = load i32, ptr @N, align 4, !tbaa !8
  %26 = sext i32 %25 to i64
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %1) #7
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %1, i8 0, i64 24, i1 false)
  call void @_ZNSt6vectorI4edgeSaIS0_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #7
  invoke void @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EE6assignEmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %26, ptr noundef nonnull align 8 dereferenceable(24) %1)
          to label %27 unwind label %40

27:                                               ; preds = %0
  call void @_ZNSt6vectorI4edgeSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #7
  %28 = load i32, ptr @M, align 4, !tbaa !8
  %29 = icmp sgt i32 %28, 0
  br i1 %29, label %.lr.ph, label %.preheader

.lr.ph:                                           ; preds = %27
  %30 = getelementptr inbounds i8, ptr %5, i64 4
  %31 = getelementptr inbounds i8, ptr %5, i64 8
  %32 = getelementptr inbounds i8, ptr %6, i64 4
  %33 = getelementptr inbounds i8, ptr %6, i64 8
  br label %42

.preheader:                                       ; preds = %42, %27
  %34 = load i32, ptr @K, align 4, !tbaa !8
  %35 = icmp sgt i32 %34, 0
  br i1 %35, label %.lr.ph10, label %._crit_edge

.lr.ph10:                                         ; preds = %.preheader
  %36 = getelementptr inbounds i8, ptr %9, i64 4
  %37 = getelementptr inbounds i8, ptr %9, i64 8
  %38 = getelementptr inbounds i8, ptr %10, i64 4
  %39 = getelementptr inbounds i8, ptr %10, i64 8
  br label %65

40:                                               ; preds = %0
  %41 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorI4edgeSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #7
  resume { ptr, i32 } %41

42:                                               ; preds = %.lr.ph, %42
  %.078 = phi i32 [ 0, %.lr.ph ], [ %59, %42 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %44 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %43, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %45 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %44, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %46 = load i32, ptr %2, align 4, !tbaa !8
  %47 = add nsw i32 %46, -1
  store i32 %47, ptr %2, align 4, !tbaa !8
  %48 = load i32, ptr %3, align 4, !tbaa !8
  %49 = add nsw i32 %48, -1
  store i32 %49, ptr %3, align 4, !tbaa !8
  %50 = sext i32 %47 to i64
  %51 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %50) #7
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %5) #7
  %52 = load i32, ptr %3, align 4, !tbaa !8
  store i32 %52, ptr %5, align 4, !tbaa !11
  %53 = load i32, ptr %4, align 4, !tbaa !8
  store i32 %53, ptr %30, align 4, !tbaa !13
  store i32 -1, ptr %31, align 4, !tbaa !14
  call void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %51, ptr noundef nonnull align 4 dereferenceable(12) %5)
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %5) #7
  %54 = load i32, ptr %3, align 4, !tbaa !8
  %55 = sext i32 %54 to i64
  %56 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %55) #7
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %6) #7
  %57 = load i32, ptr %2, align 4, !tbaa !8
  store i32 %57, ptr %6, align 4, !tbaa !11
  %58 = load i32, ptr %4, align 4, !tbaa !8
  store i32 %58, ptr %32, align 4, !tbaa !13
  store i32 -1, ptr %33, align 4, !tbaa !14
  call void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %56, ptr noundef nonnull align 4 dereferenceable(12) %6)
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  %59 = add nuw nsw i32 %.078, 1
  %60 = load i32, ptr @M, align 4, !tbaa !8
  %61 = icmp slt i32 %59, %60
  br i1 %61, label %42, label %.preheader, !llvm.loop !15

._crit_edge:                                      ; preds = %65, %.preheader
  %62 = call noundef i32 @_Z5solvev()
  %63 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %62)
  %64 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %63, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret i32 0

65:                                               ; preds = %.lr.ph10, %65
  %.09 = phi i32 [ 0, %.lr.ph10 ], [ %77, %65 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #7
  %66 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %67 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %66, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %68 = load i32, ptr %7, align 4, !tbaa !8
  %69 = add nsw i32 %68, -1
  store i32 %69, ptr %7, align 4, !tbaa !8
  %70 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef 0) #7
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %9) #7
  %71 = load i32, ptr %7, align 4, !tbaa !8
  store i32 %71, ptr %9, align 4, !tbaa !11
  %72 = load i32, ptr %8, align 4, !tbaa !8
  store i32 %72, ptr %36, align 4, !tbaa !13
  store i32 %.09, ptr %37, align 4, !tbaa !14
  call void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %70, ptr noundef nonnull align 4 dereferenceable(12) %9)
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %9) #7
  %73 = load i32, ptr %7, align 4, !tbaa !8
  %74 = sext i32 %73 to i64
  %75 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @adj, i64 noundef %74) #7
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %10) #7
  store i32 0, ptr %10, align 4, !tbaa !11
  %76 = load i32, ptr %8, align 4, !tbaa !8
  store i32 %76, ptr %38, align 4, !tbaa !13
  store i32 %.09, ptr %39, align 4, !tbaa !14
  call void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24) %75, ptr noundef nonnull align 4 dereferenceable(12) %10)
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %10) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #7
  %77 = add nuw nsw i32 %.09, 1
  %78 = load i32, ptr @K, align 4, !tbaa !8
  %79 = icmp slt i32 %77, %78
  br i1 %79, label %65, label %._crit_edge, !llvm.loop !17
}

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

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

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_I4edgeSaIS0_EESaIS2_EE6assignEmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorI4edgeSaIS0_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorI4edgeSaIS0_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorI4edgeSaIS0_EE9push_backEOS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(12)) local_unnamed_addr #0 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
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 = !{!12, !9, i64 0}
!12 = !{!"_ZTS4edge", !9, i64 0, !9, i64 4, !9, i64 8}
!13 = !{!12, !9, i64 4}
!14 = !{!12, !9, i64 8}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = distinct !{!17, !16}


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