; LLVM IR from VastoLorde95/Competitive-Programming :: Hackerrank/Random/Subsequence Weighting (A)

; 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"

%"struct.std::pair" = type { i32, i32 }
%"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.std::map" = type { %"class.std::_Rb_tree.0" }
%"class.std::_Rb_tree.0" = type { %"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::pair.4" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@t = external dso_local global i32, align 4
@n = external dso_local global i32, align 4
@a = external dso_local global [262144 x %"struct.std::pair"], align 16
@c = external dso_local global %"class.std::set", align 8
@f = external dso_local global %"class.std::map", align 8
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5buildiii(i32 noundef, i32 noundef, i32 noundef) #0

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

; Function Attrs: 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 @_Z6updateixiii(i32 noundef, i64 noundef, i32 noundef, i32 noundef, i32 noundef) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z5queryiiiii(i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; 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.4", align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %9 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %10 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %11 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @t)
  br label %13

13:                                               ; preds = %112, %0
  %14 = load i32, ptr @t, align 4, !tbaa !5
  %15 = add nsw i32 %14, -1
  store i32 %15, ptr @t, align 4, !tbaa !5
  %16 = icmp ne i32 %14, 0
  br i1 %16, label %17, label %115

17:                                               ; preds = %13
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @n)
  %19 = load i32, ptr @n, align 4, !tbaa !5
  call void @_Z5buildiii(i32 noundef 1, i32 noundef 0, i32 noundef %19)
  call void @_ZNSt3setIiSt4lessIiESaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) @c) #6
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) @f) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %20

20:                                               ; preds = %40, %17
  %21 = load i32, ptr %2, align 4, !tbaa !5
  %22 = load i32, ptr @n, align 4, !tbaa !5
  %23 = icmp slt i32 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %43

25:                                               ; preds = %20
  %26 = load i32, ptr %2, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [262144 x %"struct.std::pair"], ptr @a, i64 0, i64 %27
  %29 = getelementptr inbounds %"struct.std::pair", ptr %28, i32 0, i32 0
  %30 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %29)
  %31 = load i32, ptr %2, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [262144 x %"struct.std::pair"], ptr @a, i64 0, i64 %32
  %34 = getelementptr inbounds %"struct.std::pair", ptr %33, i32 0, i32 0
  %35 = call { ptr, i8 } @_ZNSt3setIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48) @c, ptr noundef nonnull align 4 dereferenceable(4) %34)
  %36 = getelementptr inbounds { ptr, i8 }, ptr %3, i32 0, i32 0
  %37 = extractvalue { ptr, i8 } %35, 0
  store ptr %37, ptr %36, align 8
  %38 = getelementptr inbounds { ptr, i8 }, ptr %3, i32 0, i32 1
  %39 = extractvalue { ptr, i8 } %35, 1
  store i8 %39, ptr %38, align 8
  br label %40

40:                                               ; preds = %25
  %41 = load i32, ptr %2, align 4, !tbaa !5
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %2, align 4, !tbaa !5
  br label %20, !llvm.loop !9

43:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %44

44:                                               ; preds = %55, %43
  %45 = load i32, ptr %4, align 4, !tbaa !5
  %46 = load i32, ptr @n, align 4, !tbaa !5
  %47 = icmp slt i32 %45, %46
  br i1 %47, label %49, label %48

48:                                               ; preds = %44
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  br label %58

49:                                               ; preds = %44
  %50 = load i32, ptr %4, align 4, !tbaa !5
  %51 = sext i32 %50 to i64
  %52 = getelementptr inbounds [262144 x %"struct.std::pair"], ptr @a, i64 0, i64 %51
  %53 = getelementptr inbounds %"struct.std::pair", ptr %52, i32 0, i32 1
  %54 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %53)
  br label %55

55:                                               ; preds = %49
  %56 = load i32, ptr %4, align 4, !tbaa !5
  %57 = add nsw i32 %56, 1
  store i32 %57, ptr %4, align 4, !tbaa !5
  br label %44, !llvm.loop !11

58:                                               ; preds = %48
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  store i64 0, ptr %6, align 8, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  %59 = call ptr @_ZNKSt3setIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @c) #6
  %60 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %8, i32 0, i32 0
  store ptr %59, ptr %60, align 8
  br label %61

61:                                               ; preds = %71, %58
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  %62 = call ptr @_ZNKSt3setIiSt4lessIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @c) #6
  %63 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %9, i32 0, i32 0
  store ptr %62, ptr %63, align 8
  %64 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br i1 %64, label %66, label %65

65:                                               ; preds = %61
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %74

66:                                               ; preds = %61
  %67 = load i32, ptr %5, align 4, !tbaa !5
  %68 = add nsw i32 %67, 1
  store i32 %68, ptr %5, align 4, !tbaa !5
  %69 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #6
  %70 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @f, ptr noundef nonnull align 4 dereferenceable(4) %69)
  store i32 %67, ptr %70, align 4, !tbaa !5
  br label %71

71:                                               ; preds = %66
  %72 = call ptr @_ZNSt23_Rb_tree_const_iteratorIiEppEi(ptr noundef nonnull align 8 dereferenceable(8) %8, i32 noundef 0) #6
  %73 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %10, i32 0, i32 0
  store ptr %72, ptr %73, align 8
  br label %61, !llvm.loop !14

74:                                               ; preds = %65
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  %75 = load i32, ptr @n, align 4, !tbaa !5
  %76 = sub nsw i32 %75, 1
  store i32 %76, ptr %11, align 4, !tbaa !5
  br label %77

77:                                               ; preds = %109, %74
  %78 = load i32, ptr %11, align 4, !tbaa !5
  %79 = icmp sge i32 %78, 0
  br i1 %79, label %81, label %80

80:                                               ; preds = %77
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %112

81:                                               ; preds = %77
  %82 = load i32, ptr %11, align 4, !tbaa !5
  %83 = sext i32 %82 to i64
  %84 = getelementptr inbounds [262144 x %"struct.std::pair"], ptr @a, i64 0, i64 %83
  %85 = getelementptr inbounds %"struct.std::pair", ptr %84, i32 0, i32 0
  %86 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @f, ptr noundef nonnull align 4 dereferenceable(4) %85)
  %87 = load i32, ptr %86, align 4, !tbaa !5
  %88 = add nsw i32 %87, 1
  %89 = load i32, ptr @n, align 4, !tbaa !5
  %90 = load i32, ptr @n, align 4, !tbaa !5
  %91 = call noundef i64 @_Z5queryiiiii(i32 noundef %88, i32 noundef %89, i32 noundef 1, i32 noundef 0, i32 noundef %90)
  %92 = load i32, ptr %11, align 4, !tbaa !5
  %93 = sext i32 %92 to i64
  %94 = getelementptr inbounds [262144 x %"struct.std::pair"], ptr @a, i64 0, i64 %93
  %95 = getelementptr inbounds %"struct.std::pair", ptr %94, i32 0, i32 1
  %96 = load i32, ptr %95, align 4, !tbaa !15
  %97 = sext i32 %96 to i64
  %98 = add nsw i64 %91, %97
  store i64 %98, ptr %7, align 8, !tbaa !12
  %99 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %7)
  %100 = load i64, ptr %99, align 8, !tbaa !12
  store i64 %100, ptr %6, align 8, !tbaa !12
  %101 = load i32, ptr %11, align 4, !tbaa !5
  %102 = sext i32 %101 to i64
  %103 = getelementptr inbounds [262144 x %"struct.std::pair"], ptr @a, i64 0, i64 %102
  %104 = getelementptr inbounds %"struct.std::pair", ptr %103, i32 0, i32 0
  %105 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @f, ptr noundef nonnull align 4 dereferenceable(4) %104)
  %106 = load i32, ptr %105, align 4, !tbaa !5
  %107 = load i64, ptr %7, align 8, !tbaa !12
  %108 = load i32, ptr @n, align 4, !tbaa !5
  call void @_Z6updateixiii(i32 noundef %106, i64 noundef %107, i32 noundef 1, i32 noundef 0, i32 noundef %108)
  br label %109

109:                                              ; preds = %81
  %110 = load i32, ptr %11, align 4, !tbaa !5
  %111 = add nsw i32 %110, -1
  store i32 %111, ptr %11, align 4, !tbaa !5
  br label %77, !llvm.loop !17

112:                                              ; preds = %80
  %113 = load i64, ptr %6, align 8, !tbaa !12
  %114 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i64 noundef %113)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  br label %13, !llvm.loop !18

115:                                              ; preds = %13
  ret i32 0
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIiSt4lessIiESaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIiSt4lessIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIiEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #5 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 = { 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 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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { 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 = distinct !{!11, !10}
!12 = !{!13, !13, i64 0}
!13 = !{!"long long", !7, i64 0}
!14 = distinct !{!14, !10}
!15 = !{!16, !6, i64 4}
!16 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!17 = distinct !{!17, !10}
!18 = distinct !{!18, !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"

%"struct.std::pair" = type { i32, i32 }
%"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.std::map" = type { %"class.std::_Rb_tree.0" }
%"class.std::_Rb_tree.0" = type { %"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<int, std::pair<const int, int>, std::_Select1st<std::pair<const int, int>>, std::less<int>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@t = external dso_local global i32, align 4
@n = external dso_local global i32, align 4
@a = external dso_local global [262144 x %"struct.std::pair"], align 16
@c = external dso_local global %"class.std::set", align 8
@f = external dso_local global %"class.std::map", align 8
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5buildiii(i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

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

; Function Attrs: mustprogress 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 @_Z6updateixiii(i32 noundef, i64 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z5queryiiiii(i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @t)
  %6 = load i32, ptr @t, align 4, !tbaa !5
  %7 = add nsw i32 %6, -1
  store i32 %7, ptr @t, align 4, !tbaa !5
  %.not28 = icmp eq i32 %6, 0
  br i1 %.not28, label %._crit_edge31, label %.lr.ph30

.lr.ph30:                                         ; preds = %0, %._crit_edge27
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @n)
  %9 = load i32, ptr @n, align 4, !tbaa !5
  call void @_Z5buildiii(i32 noundef 1, i32 noundef 0, i32 noundef %9)
  call void @_ZNSt3setIiSt4lessIiESaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) @c) #6
  call void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) @f) #6
  %10 = load i32, ptr @n, align 4, !tbaa !5
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

.preheader:                                       ; preds = %.lr.ph
  %12 = icmp sgt i32 %16, 0
  br i1 %12, label %.lr.ph19, label %._crit_edge

.lr.ph:                                           ; preds = %.lr.ph30, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.lr.ph30 ]
  %13 = getelementptr inbounds [262144 x %"struct.std::pair"], ptr @a, i64 0, i64 %indvars.iv
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %13)
  %15 = call { ptr, i8 } @_ZNSt3setIiSt4lessIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(48) @c, ptr noundef nonnull align 4 dereferenceable(4) %13)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %16 = load i32, ptr @n, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = icmp slt i64 %indvars.iv.next, %17
  br i1 %18, label %.lr.ph, label %.preheader, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph19, %.lr.ph30, %.preheader
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  store i64 0, ptr %1, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %19 = call ptr @_ZNKSt3setIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) @c) #6
  store ptr %19, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %20 = call ptr @_ZNKSt3setIiSt4lessIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @c) #6
  store ptr %20, ptr %4, align 8
  %21 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br i1 %21, label %.lr.ph22, label %._crit_edge23

.lr.ph19:                                         ; preds = %.preheader, %.lr.ph19
  %indvars.iv33 = phi i64 [ %indvars.iv.next34, %.lr.ph19 ], [ 0, %.preheader ]
  %22 = getelementptr inbounds [262144 x %"struct.std::pair"], ptr @a, i64 0, i64 %indvars.iv33, i32 1
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %22)
  %indvars.iv.next34 = add nuw nsw i64 %indvars.iv33, 1
  %24 = load i32, ptr @n, align 4, !tbaa !5
  %25 = sext i32 %24 to i64
  %26 = icmp slt i64 %indvars.iv.next34, %25
  br i1 %26, label %.lr.ph19, label %._crit_edge, !llvm.loop !13

._crit_edge23:                                    ; preds = %.lr.ph22, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  %27 = load i32, ptr @n, align 4, !tbaa !5
  %28 = icmp sgt i32 %27, 0
  br i1 %28, label %.lr.ph26.preheader, label %._crit_edge27

.lr.ph26.preheader:                               ; preds = %._crit_edge23
  %29 = zext nneg i32 %27 to i64
  br label %.lr.ph26

.lr.ph22:                                         ; preds = %._crit_edge, %.lr.ph22
  %.01520 = phi i32 [ %30, %.lr.ph22 ], [ 0, %._crit_edge ]
  %30 = add nuw nsw i32 %.01520, 1
  %31 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #6
  %32 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @f, ptr noundef nonnull align 4 dereferenceable(4) %31)
  store i32 %.01520, ptr %32, align 4, !tbaa !5
  %33 = call ptr @_ZNSt23_Rb_tree_const_iteratorIiEppEi(ptr noundef nonnull align 8 dereferenceable(8) %3, i32 noundef 0) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %34 = call ptr @_ZNKSt3setIiSt4lessIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) @c) #6
  store ptr %34, ptr %4, align 8
  %35 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br i1 %35, label %.lr.ph22, label %._crit_edge23, !llvm.loop !14

._crit_edge27:                                    ; preds = %.lr.ph26, %._crit_edge23
  %36 = load i64, ptr %1, align 8, !tbaa !11
  %37 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i64 noundef %36)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  %38 = load i32, ptr @t, align 4, !tbaa !5
  %39 = add nsw i32 %38, -1
  store i32 %39, ptr @t, align 4, !tbaa !5
  %.not = icmp eq i32 %38, 0
  br i1 %.not, label %._crit_edge31, label %.lr.ph30, !llvm.loop !15

.lr.ph26:                                         ; preds = %.lr.ph26.preheader, %.lr.ph26
  %indvars.iv36 = phi i64 [ %29, %.lr.ph26.preheader ], [ %indvars.iv.next37, %.lr.ph26 ]
  %indvars.iv.next37 = add nsw i64 %indvars.iv36, -1
  %40 = getelementptr inbounds [262144 x %"struct.std::pair"], ptr @a, i64 0, i64 %indvars.iv.next37
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @f, ptr noundef nonnull align 4 dereferenceable(4) %40)
  %42 = load i32, ptr %41, align 4, !tbaa !5
  %43 = add nsw i32 %42, 1
  %44 = load i32, ptr @n, align 4, !tbaa !5
  %45 = call noundef i64 @_Z5queryiiiii(i32 noundef %43, i32 noundef %44, i32 noundef 1, i32 noundef 0, i32 noundef %44)
  %46 = getelementptr inbounds i8, ptr %40, i64 4
  %47 = load i32, ptr %46, align 4, !tbaa !16
  %48 = sext i32 %47 to i64
  %49 = add nsw i64 %45, %48
  store i64 %49, ptr %2, align 8, !tbaa !11
  %50 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIxERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %51 = load i64, ptr %50, align 8, !tbaa !11
  store i64 %51, ptr %1, align 8, !tbaa !11
  %52 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48) @f, ptr noundef nonnull align 4 dereferenceable(4) %40)
  %53 = load i32, ptr %52, align 4, !tbaa !5
  %54 = load i64, ptr %2, align 8, !tbaa !11
  %55 = load i32, ptr @n, align 4, !tbaa !5
  call void @_Z6updateixiii(i32 noundef %53, i64 noundef %54, i32 noundef 1, i32 noundef 0, i32 noundef %55)
  %56 = icmp ugt i64 %indvars.iv36, 1
  br i1 %56, label %.lr.ph26, label %._crit_edge27, !llvm.loop !18

._crit_edge31:                                    ; preds = %._crit_edge27, %0
  ret i32 0
}

; 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 void @_ZNSt3setIiSt4lessIiESaIiEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #5 align 2

; 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 #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIiSt4lessIiESaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIiES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIiSt4lessIiESaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt3mapIiiSt4lessIiESaISt4pairIKiiEEEixERS3_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt23_Rb_tree_const_iteratorIiEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIiEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #5 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 = { 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 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 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { 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, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}
!15 = distinct !{!15, !10}
!16 = !{!17, !6, i64 4}
!17 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!18 = distinct !{!18, !10}


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