; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/106 Division 2/Problem C (C)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }
%"class.std::basic_ostream" = type { ptr, %"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 }

@n = external dso_local global i32, align 4
@s1 = external dso_local global i32, align 4
@s2 = external dso_local global i32, align 4
@mx = external dso_local global i32, align 4
@x = external dso_local global i32, align 4
@t1 = external dso_local global %"class.std::vector", align 8
@t2 = external dso_local global %"class.std::vector", align 8
@a = external dso_local global [100000 x %"struct.std::pair"], align 16
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1

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

9:                                                ; preds = %23, %0
  %10 = load i32, ptr %2, align 4, !tbaa !5
  %11 = load i32, ptr @n, align 4, !tbaa !5
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #8
  br label %26

14:                                               ; preds = %9
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @x)
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) @mx, ptr noundef nonnull align 4 dereferenceable(4) @x)
  %17 = load i32, ptr %16, align 4, !tbaa !5
  store i32 %17, ptr @mx, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #8
  %18 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) @x, ptr noundef nonnull align 4 dereferenceable(4) %2)
  store i64 %18, ptr %3, align 4
  %19 = load i32, ptr %2, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds [100000 x %"struct.std::pair"], ptr @a, i64 0, i64 %20
  %22 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %21, ptr noundef nonnull align 4 dereferenceable(8) %3) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #8
  br label %23

23:                                               ; preds = %14
  %24 = load i32, ptr %2, align 4, !tbaa !5
  %25 = add nsw i32 %24, 1
  store i32 %25, ptr %2, align 4, !tbaa !5
  br label %9, !llvm.loop !9

26:                                               ; preds = %13
  %27 = load i32, ptr @n, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds %"struct.std::pair", ptr @a, i64 %28
  call void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef @a, ptr noundef %29)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #8
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #8
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %30

30:                                               ; preds = %65, %26
  %31 = load i32, ptr %5, align 4, !tbaa !5
  %32 = load i32, ptr @n, align 4, !tbaa !5
  %33 = icmp slt i32 %31, %32
  br i1 %33, label %35, label %34

34:                                               ; preds = %30
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #8
  br label %68

35:                                               ; preds = %30
  %36 = load i32, ptr %4, align 4, !tbaa !5
  %37 = sub nsw i32 1, %36
  store i32 %37, ptr %4, align 4, !tbaa !5
  %38 = load i32, ptr %4, align 4, !tbaa !5
  %39 = icmp ne i32 %38, 0
  br i1 %39, label %40, label %52

40:                                               ; preds = %35
  %41 = load i32, ptr %5, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [100000 x %"struct.std::pair"], ptr @a, i64 0, i64 %42
  %44 = getelementptr inbounds %"struct.std::pair", ptr %43, i32 0, i32 1
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) @t1, ptr noundef nonnull align 4 dereferenceable(4) %44)
  %45 = load i32, ptr %5, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds [100000 x %"struct.std::pair"], ptr @a, i64 0, i64 %46
  %48 = getelementptr inbounds %"struct.std::pair", ptr %47, i32 0, i32 0
  %49 = load i32, ptr %48, align 8, !tbaa !11
  %50 = load i32, ptr @s1, align 4, !tbaa !5
  %51 = add nsw i32 %50, %49
  store i32 %51, ptr @s1, align 4, !tbaa !5
  br label %64

52:                                               ; preds = %35
  %53 = load i32, ptr %5, align 4, !tbaa !5
  %54 = sext i32 %53 to i64
  %55 = getelementptr inbounds [100000 x %"struct.std::pair"], ptr @a, i64 0, i64 %54
  %56 = getelementptr inbounds %"struct.std::pair", ptr %55, i32 0, i32 1
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) @t2, ptr noundef nonnull align 4 dereferenceable(4) %56)
  %57 = load i32, ptr %5, align 4, !tbaa !5
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds [100000 x %"struct.std::pair"], ptr @a, i64 0, i64 %58
  %60 = getelementptr inbounds %"struct.std::pair", ptr %59, i32 0, i32 0
  %61 = load i32, ptr %60, align 8, !tbaa !11
  %62 = load i32, ptr @s2, align 4, !tbaa !5
  %63 = add nsw i32 %62, %61
  store i32 %63, ptr @s2, align 4, !tbaa !5
  br label %64

64:                                               ; preds = %52, %40
  br label %65

65:                                               ; preds = %64
  %66 = load i32, ptr %5, align 4, !tbaa !5
  %67 = add nsw i32 %66, 1
  store i32 %67, ptr %5, align 4, !tbaa !5
  br label %30, !llvm.loop !13

68:                                               ; preds = %34
  %69 = load i32, ptr @s1, align 4, !tbaa !5
  %70 = load i32, ptr @s2, align 4, !tbaa !5
  %71 = sub nsw i32 %69, %70
  %72 = call i32 @llvm.abs.i32(i32 %71, i1 true)
  %73 = load i32, ptr @mx, align 4, !tbaa !5
  %74 = icmp sle i32 %72, %73
  br i1 %74, label %75, label %119

75:                                               ; preds = %68
  %76 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t1) #8
  %77 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %76)
  %78 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %77, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #8
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %79

79:                                               ; preds = %93, %75
  %80 = load i32, ptr %6, align 4, !tbaa !5
  %81 = sext i32 %80 to i64
  %82 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t1) #8
  %83 = icmp ult i64 %81, %82
  br i1 %83, label %85, label %84

84:                                               ; preds = %79
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #8
  br label %96

85:                                               ; preds = %79
  %86 = load i32, ptr %6, align 4, !tbaa !5
  %87 = sext i32 %86 to i64
  %88 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @t1, i64 noundef %87) #8
  %89 = load i32, ptr %88, align 4, !tbaa !5
  %90 = add nsw i32 %89, 1
  %91 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %90)
  %92 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %91, ptr noundef @.str.3)
  br label %93

93:                                               ; preds = %85
  %94 = load i32, ptr %6, align 4, !tbaa !5
  %95 = add nsw i32 %94, 1
  store i32 %95, ptr %6, align 4, !tbaa !5
  br label %79, !llvm.loop !14

96:                                               ; preds = %84
  %97 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %98 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t2) #8
  %99 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %98)
  %100 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %99, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #8
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %101

101:                                              ; preds = %115, %96
  %102 = load i32, ptr %7, align 4, !tbaa !5
  %103 = sext i32 %102 to i64
  %104 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t2) #8
  %105 = icmp ult i64 %103, %104
  br i1 %105, label %107, label %106

106:                                              ; preds = %101
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #8
  br label %118

107:                                              ; preds = %101
  %108 = load i32, ptr %7, align 4, !tbaa !5
  %109 = sext i32 %108 to i64
  %110 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @t2, i64 noundef %109) #8
  %111 = load i32, ptr %110, align 4, !tbaa !5
  %112 = add nsw i32 %111, 1
  %113 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %112)
  %114 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %113, ptr noundef @.str.3)
  br label %115

115:                                              ; preds = %107
  %116 = load i32, ptr %7, align 4, !tbaa !5
  %117 = add nsw i32 %116, 1
  store i32 %117, ptr %7, align 4, !tbaa !5
  br label %101, !llvm.loop !15

118:                                              ; preds = %106
  br label %119

119:                                              ; preds = %118, %68
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #8
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; 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)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #5 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef, ptr noundef) #6

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #4 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #7

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #5 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #4 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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #5 align 2

attributes #0 = { 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 #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { 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 #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 = { 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #8 = { 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 = distinct !{!14, !10}
!15 = distinct !{!15, !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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }
%"class.std::basic_ostream" = type { ptr, %"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 }

@n = external dso_local global i32, align 4
@s1 = external dso_local local_unnamed_addr global i32, align 4
@s2 = external dso_local local_unnamed_addr global i32, align 4
@mx = external dso_local global i32, align 4
@x = external dso_local global i32, align 4
@t1 = external dso_local global %"class.std::vector", align 8
@t2 = external dso_local global %"class.std::vector", align 8
@a = external dso_local global [100000 x %"struct.std::pair"], align 16
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca %"struct.std::pair", align 8
  %3 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @n)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #9
  store i32 0, ptr %1, align 4, !tbaa !5
  %4 = load i32, ptr @n, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  %.lcssa = phi i32 [ %4, %0 ], [ %20, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #9
  %6 = sext i32 %.lcssa to i64
  %7 = getelementptr inbounds %"struct.std::pair", ptr @a, i64 %6
  call void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef nonnull @a, ptr noundef nonnull %7)
  %8 = load i32, ptr @n, align 4, !tbaa !5
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %.lr.ph23, label %._crit_edge24

.lr.ph:                                           ; preds = %0, %.lr.ph
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @x)
  %11 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) @mx, ptr noundef nonnull align 4 dereferenceable(4) @x)
  %12 = load i32, ptr %11, align 4, !tbaa !5
  store i32 %12, ptr @mx, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #9
  %13 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) @x, ptr noundef nonnull align 4 dereferenceable(4) %1)
  store i64 %13, ptr %2, align 8
  %14 = load i32, ptr %1, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [100000 x %"struct.std::pair"], ptr @a, i64 0, i64 %15
  %17 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8) %16, ptr noundef nonnull align 4 dereferenceable(8) %2) #9
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #9
  %18 = load i32, ptr %1, align 4, !tbaa !5
  %19 = add nsw i32 %18, 1
  store i32 %19, ptr %1, align 4, !tbaa !5
  %20 = load i32, ptr @n, align 4, !tbaa !5
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge24:                                    ; preds = %.lr.ph23, %._crit_edge
  %22 = load i32, ptr @s1, align 4, !tbaa !5
  %23 = load i32, ptr @s2, align 4, !tbaa !5
  %24 = sub nsw i32 %22, %23
  %25 = call i32 @llvm.abs.i32(i32 %24, i1 true)
  %26 = load i32, ptr @mx, align 4, !tbaa !5
  %.not = icmp sgt i32 %25, %26
  br i1 %.not, label %.loopexit, label %36

.lr.ph23:                                         ; preds = %._crit_edge, %.lr.ph23
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph23 ], [ 0, %._crit_edge ]
  %.01620 = phi i32 [ %27, %.lr.ph23 ], [ 0, %._crit_edge ]
  %27 = sub nuw nsw i32 1, %.01620
  %.not19 = icmp eq i32 %.01620, 1
  %28 = getelementptr inbounds [100000 x %"struct.std::pair"], ptr @a, i64 0, i64 %indvars.iv
  %29 = getelementptr inbounds i8, ptr %28, i64 4
  %t2.t1 = select i1 %.not19, ptr @t2, ptr @t1
  %s2.s1 = select i1 %.not19, ptr @s2, ptr @s1
  call void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %t2.t1, ptr noundef nonnull align 4 dereferenceable(4) %29)
  %30 = load i32, ptr %28, align 8, !tbaa !11
  %31 = load i32, ptr %s2.s1, align 4, !tbaa !5
  %32 = add nsw i32 %31, %30
  store i32 %32, ptr %s2.s1, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %33 = load i32, ptr @n, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = icmp slt i64 %indvars.iv.next, %34
  br i1 %35, label %.lr.ph23, label %._crit_edge24, !llvm.loop !13

36:                                               ; preds = %._crit_edge24
  %37 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t1) #9
  %38 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %37)
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %38, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %40 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t1) #9
  %.not32 = icmp eq i64 %40, 0
  br i1 %.not32, label %._crit_edge28, label %.lr.ph27

._crit_edge28:                                    ; preds = %.lr.ph27, %36
  %41 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %42 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t2) #9
  %43 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEm(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %42)
  %44 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %43, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  %45 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t2) #9
  %.not33 = icmp eq i64 %45, 0
  br i1 %.not33, label %.loopexit, label %.lr.ph31

.lr.ph27:                                         ; preds = %36, %.lr.ph27
  %indvars.iv36 = phi i64 [ %indvars.iv.next37, %.lr.ph27 ], [ 0, %36 ]
  %46 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @t1, i64 noundef %indvars.iv36) #9
  %47 = load i32, ptr %46, align 4, !tbaa !5
  %48 = add nsw i32 %47, 1
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %48)
  %50 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %49, ptr noundef nonnull @.str.3)
  %indvars.iv.next37 = add nuw nsw i64 %indvars.iv36, 1
  %51 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t1) #9
  %52 = icmp ugt i64 %51, %indvars.iv.next37
  br i1 %52, label %.lr.ph27, label %._crit_edge28, !llvm.loop !14

.lr.ph31:                                         ; preds = %._crit_edge28, %.lr.ph31
  %indvars.iv39 = phi i64 [ %indvars.iv.next40, %.lr.ph31 ], [ 0, %._crit_edge28 ]
  %53 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) @t2, i64 noundef %indvars.iv39) #9
  %54 = load i32, ptr %53, align 4, !tbaa !5
  %55 = add nsw i32 %54, 1
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %55)
  %57 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %56, ptr noundef nonnull @.str.3)
  %indvars.iv.next40 = add nuw nsw i64 %indvars.iv39, 1
  %58 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @t2) #9
  %59 = icmp ugt i64 %58, %indvars.iv.next40
  br i1 %59, label %.lr.ph31, label %.loopexit, !llvm.loop !15

.loopexit:                                        ; preds = %.lr.ph31, %._crit_edge28, %._crit_edge24
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; 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 #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPSt4pairIiiEEvT_S3_(ptr noundef, ptr noundef) local_unnamed_addr #6

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #7

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #5 align 2

; 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 #4 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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #6

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #5 align 2

attributes #0 = { 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 #1 = { 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { 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 #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 = { 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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #8 = { "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 #9 = { 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 = distinct !{!14, !10}
!15 = distinct !{!15, !10}


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