; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/Zepto Code Rush 2014/Problem E (E)

; 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::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, 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 { i32, i32 }
%"struct.std::pair.0" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@n = external dso_local global i32, align 4
@w = external dso_local global i32, align 4
@used = external dso_local global [300100 x i32], align 16
@a = external dso_local global [300100 x i32], align 16
@b = external dso_local global [300100 x i32], align 16
@cost = external dso_local global i64, align 8
@s1 = external dso_local global %"class.std::set", align 8
@s2 = external dso_local global %"class.std::set", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3onev() #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 nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; 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 i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__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: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3twov() #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"struct.std::pair", align 4
  %4 = alloca %"struct.std::pair.0", align 8
  %5 = alloca %"struct.std::pair", align 4
  %6 = alloca %"struct.std::pair.0", align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %13 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @n, ptr noundef @w)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %15

15:                                               ; preds = %46, %0
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = load i32, ptr @n, align 4, !tbaa !5
  %18 = icmp slt i32 %16, %17
  br i1 %18, label %20, label %19

19:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %49

20:                                               ; preds = %15
  %21 = load i32, ptr %2, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [300100 x i32], ptr @a, i64 0, i64 %22
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds [300100 x i32], ptr @b, i64 0, i64 %25
  %27 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %23, ptr noundef %26)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %28 = load i32, ptr %2, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [300100 x i32], ptr @a, i64 0, i64 %29
  %31 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %30, ptr noundef nonnull align 4 dereferenceable(4) %2)
  store i64 %31, ptr %3, align 4
  %32 = call { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48) @s1, ptr noundef nonnull align 4 dereferenceable(8) %3)
  %33 = getelementptr inbounds { ptr, i8 }, ptr %4, i32 0, i32 0
  %34 = extractvalue { ptr, i8 } %32, 0
  store ptr %34, ptr %33, align 8
  %35 = getelementptr inbounds { ptr, i8 }, ptr %4, i32 0, i32 1
  %36 = extractvalue { ptr, i8 } %32, 1
  store i8 %36, ptr %35, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %37 = load i32, ptr %2, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds [300100 x i32], ptr @b, i64 0, i64 %38
  %40 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %39, ptr noundef nonnull align 4 dereferenceable(4) %2)
  store i64 %40, ptr %5, align 4
  %41 = call { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48) @s2, ptr noundef nonnull align 4 dereferenceable(8) %5)
  %42 = getelementptr inbounds { ptr, i8 }, ptr %6, i32 0, i32 0
  %43 = extractvalue { ptr, i8 } %41, 0
  store ptr %43, ptr %42, align 8
  %44 = getelementptr inbounds { ptr, i8 }, ptr %6, i32 0, i32 1
  %45 = extractvalue { ptr, i8 } %41, 1
  store i8 %45, ptr %44, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %46

46:                                               ; preds = %20
  %47 = load i32, ptr %2, align 4, !tbaa !5
  %48 = add nsw i32 %47, 1
  store i32 %48, ptr %2, align 4, !tbaa !5
  br label %15, !llvm.loop !9

49:                                               ; preds = %19
  br label %50

50:                                               ; preds = %88, %49
  %51 = load i32, ptr @w, align 4, !tbaa !5
  %52 = icmp ne i32 %51, 0
  br i1 %52, label %53, label %89

53:                                               ; preds = %50
  %54 = load i32, ptr @w, align 4, !tbaa !5
  %55 = srem i32 %54, 2
  %56 = icmp eq i32 %55, 1
  br i1 %56, label %63, label %57

57:                                               ; preds = %53
  %58 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @s1) #5
  %59 = icmp eq i64 %58, 1
  br i1 %59, label %63, label %60

60:                                               ; preds = %57
  %61 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @s2) #5
  %62 = icmp eq i64 %61, 0
  br i1 %62, label %63, label %64

63:                                               ; preds = %60, %57, %53
  call void @_Z3onev()
  br label %88

64:                                               ; preds = %60
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %65 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @s1) #5
  %66 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %7, i32 0, i32 0
  store ptr %65, ptr %66, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  %67 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  %68 = getelementptr inbounds %"struct.std::pair", ptr %67, i32 0, i32 0
  %69 = load i32, ptr %68, align 4, !tbaa !11
  store i32 %69, ptr %8, align 4, !tbaa !5
  %70 = call ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairIiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %7, i32 noundef 0) #5
  %71 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %9, i32 0, i32 0
  store ptr %70, ptr %71, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  %72 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  %73 = getelementptr inbounds %"struct.std::pair", ptr %72, i32 0, i32 0
  %74 = load i32, ptr %73, align 4, !tbaa !11
  store i32 %74, ptr %10, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %75 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @s2) #5
  %76 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %12, i32 0, i32 0
  store ptr %75, ptr %76, align 8
  %77 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %12) #5
  %78 = getelementptr inbounds %"struct.std::pair", ptr %77, i32 0, i32 0
  %79 = load i32, ptr %78, align 4, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  store i32 %79, ptr %11, align 4, !tbaa !5
  %80 = load i32, ptr %8, align 4, !tbaa !5
  %81 = load i32, ptr %10, align 4, !tbaa !5
  %82 = add nsw i32 %80, %81
  %83 = load i32, ptr %11, align 4, !tbaa !5
  %84 = icmp slt i32 %82, %83
  br i1 %84, label %85, label %86

85:                                               ; preds = %64
  call void @_Z3onev()
  call void @_Z3onev()
  br label %87

86:                                               ; preds = %64
  call void @_Z3twov()
  br label %87

87:                                               ; preds = %86, %85
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %88

88:                                               ; preds = %87, %63
  br label %50, !llvm.loop !13

89:                                               ; preds = %50
  %90 = load i64, ptr @cost, align 8, !tbaa !14
  %91 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i64 noundef %90)
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #5
  store i32 0, ptr %13, align 4, !tbaa !5
  br label %92

92:                                               ; preds = %103, %89
  %93 = load i32, ptr %13, align 4, !tbaa !5
  %94 = load i32, ptr @n, align 4, !tbaa !5
  %95 = icmp slt i32 %93, %94
  br i1 %95, label %97, label %96

96:                                               ; preds = %92
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  br label %106

97:                                               ; preds = %92
  %98 = load i32, ptr %13, align 4, !tbaa !5
  %99 = sext i32 %98 to i64
  %100 = getelementptr inbounds [300100 x i32], ptr @used, i64 0, i64 %99
  %101 = load i32, ptr %100, align 4, !tbaa !5
  %102 = call i32 (ptr, ...) @printf(ptr noundef @.str.4, i32 noundef %101)
  br label %103

103:                                              ; preds = %97
  %104 = load i32, ptr %13, align 4, !tbaa !5
  %105 = add nsw i32 %104, 1
  store i32 %105, ptr %13, align 4, !tbaa !5
  br label %92, !llvm.loop !16

106:                                              ; preds = %96
  %107 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairIiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2 align 2

declare i32 @printf(ptr noundef, ...) #4

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 = { 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"}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = distinct !{!13, !10}
!14 = !{!15, !15, i64 0}
!15 = !{!"long long", !7, i64 0}
!16 = distinct !{!16, !10}


; 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::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, 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 { i32, i32 }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@n = external dso_local global i32, align 4
@w = external dso_local global i32, align 4
@used = external dso_local local_unnamed_addr global [300100 x i32], align 16
@a = external dso_local global [300100 x i32], align 16
@b = external dso_local global [300100 x i32], align 16
@cost = external dso_local local_unnamed_addr global i64, align 8
@s1 = external dso_local global %"class.std::set", align 8
@s2 = external dso_local global %"class.std::set", align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3onev() 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 nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; 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 i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__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 uwtable
declare dso_local { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z3twov() local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 {
  %1 = alloca i32, align 4
  %2 = alloca %"struct.std::pair", align 8
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %6 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @n, ptr noundef nonnull @w)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #5
  store i32 0, ptr %1, align 4, !tbaa !5
  %7 = load i32, ptr @n, align 4, !tbaa !5
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #5
  %9 = load i32, ptr @w, align 4, !tbaa !5
  %.not12 = icmp eq i32 %9, 0
  br i1 %.not12, label %._crit_edge15, label %.lr.ph14

.lr.ph:                                           ; preds = %0, %.lr.ph
  %storemerge11 = phi i32 [ %25, %.lr.ph ], [ 0, %0 ]
  %10 = sext i32 %storemerge11 to i64
  %11 = getelementptr inbounds [300100 x i32], ptr @a, i64 0, i64 %10
  %12 = getelementptr inbounds [300100 x i32], ptr @b, i64 0, i64 %10
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %11, ptr noundef nonnull %12)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  %14 = load i32, ptr %1, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [300100 x i32], ptr @a, i64 0, i64 %15
  %17 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %16, ptr noundef nonnull align 4 dereferenceable(4) %1)
  store i64 %17, ptr %2, align 8
  %18 = call { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48) @s1, ptr noundef nonnull align 4 dereferenceable(8) %2)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %19 = load i32, ptr %1, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds [300100 x i32], ptr @b, i64 0, i64 %20
  %22 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %21, ptr noundef nonnull align 4 dereferenceable(4) %1)
  store i64 %22, ptr %3, align 8
  %23 = call { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48) @s2, ptr noundef nonnull align 4 dereferenceable(8) %3)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  %24 = load i32, ptr %1, align 4, !tbaa !5
  %25 = add nsw i32 %24, 1
  store i32 %25, ptr %1, align 4, !tbaa !5
  %26 = load i32, ptr @n, align 4, !tbaa !5
  %27 = icmp slt i32 %25, %26
  br i1 %27, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph14:                                         ; preds = %._crit_edge, %53
  %28 = phi i32 [ %54, %53 ], [ %9, %._crit_edge ]
  %29 = and i32 %28, -2147483647
  %30 = icmp eq i32 %29, 1
  br i1 %30, label %37, label %31

31:                                               ; preds = %.lr.ph14
  %32 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @s1) #5
  %33 = icmp eq i64 %32, 1
  br i1 %33, label %37, label %34

34:                                               ; preds = %31
  %35 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @s2) #5
  %36 = icmp eq i64 %35, 0
  br i1 %36, label %37, label %38

37:                                               ; preds = %34, %31, %.lr.ph14
  call void @_Z3onev()
  br label %53

38:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %39 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @s1) #5
  store ptr %39, ptr %4, align 8
  %40 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  %41 = load i32, ptr %40, align 4, !tbaa !11
  %42 = call ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairIiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8) %4, i32 noundef 0) #5
  %43 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #5
  %44 = load i32, ptr %43, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #5
  %45 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @s2) #5
  store ptr %45, ptr %5, align 8
  %46 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #5
  %47 = load i32, ptr %46, align 4, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #5
  %48 = add nsw i32 %44, %41
  %49 = icmp slt i32 %48, %47
  br i1 %49, label %50, label %51

50:                                               ; preds = %38
  call void @_Z3onev()
  call void @_Z3onev()
  br label %52

51:                                               ; preds = %38
  call void @_Z3twov()
  br label %52

52:                                               ; preds = %51, %50
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  br label %53

53:                                               ; preds = %52, %37
  %54 = load i32, ptr @w, align 4, !tbaa !5
  %.not = icmp eq i32 %54, 0
  br i1 %.not, label %._crit_edge15, label %.lr.ph14, !llvm.loop !13

._crit_edge15:                                    ; preds = %53, %._crit_edge
  %55 = load i64, ptr @cost, align 8, !tbaa !14
  %56 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i64 noundef %55)
  %57 = load i32, ptr @n, align 4, !tbaa !5
  %58 = icmp sgt i32 %57, 0
  br i1 %58, label %.lr.ph18, label %._crit_edge19

._crit_edge19:                                    ; preds = %.lr.ph18, %._crit_edge15
  %59 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  ret i32 0

.lr.ph18:                                         ; preds = %._crit_edge15, %.lr.ph18
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph18 ], [ 0, %._crit_edge15 ]
  %60 = getelementptr inbounds [300100 x i32], ptr @used, i64 0, i64 %indvars.iv
  %61 = load i32, ptr %60, align 4, !tbaa !5
  %62 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4, i32 noundef %61)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %63 = load i32, ptr @n, align 4, !tbaa !5
  %64 = sext i32 %63 to i64
  %65 = icmp slt i64 %indvars.iv.next, %64
  br i1 %65, label %.lr.ph18, label %._crit_edge19, !llvm.loop !16
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairIiiEEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #4

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 = { 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 #5 = { 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"}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = distinct !{!13, !10}
!14 = !{!15, !15, i64 0}
!15 = !{!"long long", !7, i64 0}
!16 = distinct !{!16, !10}


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