; LLVM IR from DionysiosB/CodeForces :: 1500-1599 (1541B-PleasantPairs)

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

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"struct.std::pair" = type { i64, i64 }

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  %13 = alloca i32, align 4
  %14 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %16

16:                                               ; preds = %126, %0
  %17 = load i64, ptr %2, align 8, !tbaa !5
  %18 = add nsw i64 %17, -1
  store i64 %18, ptr %2, align 8, !tbaa !5
  %19 = icmp ne i64 %17, 0
  br i1 %19, label %20, label %133

20:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #6
  %22 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #6
  call void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %22, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %23 unwind label %29

23:                                               ; preds = %20
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  store i64 0, ptr %8, align 8, !tbaa !5
  br label %24

24:                                               ; preds = %44, %23
  %25 = load i64, ptr %8, align 8, !tbaa !5
  %26 = load i64, ptr %3, align 8, !tbaa !5
  %27 = icmp slt i64 %25, %26
  br i1 %27, label %33, label %28

28:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %51

29:                                               ; preds = %20
  %30 = landingpad { ptr, i32 }
          cleanup
  %31 = extractvalue { ptr, i32 } %30, 0
  store ptr %31, ptr %6, align 8
  %32 = extractvalue { ptr, i32 } %30, 1
  store i32 %32, ptr %7, align 4
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  br label %132

33:                                               ; preds = %24
  %34 = load i64, ptr %8, align 8, !tbaa !5
  %35 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %34) #6
  %36 = getelementptr inbounds %"struct.std::pair", ptr %35, i32 0, i32 0
  %37 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %36)
          to label %38 unwind label %47

38:                                               ; preds = %33
  %39 = load i64, ptr %8, align 8, !tbaa !5
  %40 = add nsw i64 %39, 1
  %41 = load i64, ptr %8, align 8, !tbaa !5
  %42 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %41) #6
  %43 = getelementptr inbounds %"struct.std::pair", ptr %42, i32 0, i32 1
  store i64 %40, ptr %43, align 8, !tbaa !9
  br label %44

44:                                               ; preds = %38
  %45 = load i64, ptr %8, align 8, !tbaa !5
  %46 = add nsw i64 %45, 1
  store i64 %46, ptr %8, align 8, !tbaa !5
  br label %24, !llvm.loop !11

47:                                               ; preds = %33
  %48 = landingpad { ptr, i32 }
          cleanup
  %49 = extractvalue { ptr, i32 } %48, 0
  store ptr %49, ptr %6, align 8
  %50 = extractvalue { ptr, i32 } %48, 1
  store i32 %50, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %131

51:                                               ; preds = %28
  %52 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %53 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %52, ptr %53, align 8
  %54 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %55 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %54, ptr %55, align 8
  %56 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  %57 = load ptr, ptr %56, align 8
  %58 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  %59 = load ptr, ptr %58, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %57, ptr %59)
          to label %60 unwind label %66

60:                                               ; preds = %51
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  store i64 0, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  store i64 0, ptr %12, align 8, !tbaa !5
  br label %61

61:                                               ; preds = %120, %60
  %62 = load i64, ptr %12, align 8, !tbaa !5
  %63 = load i64, ptr %3, align 8, !tbaa !5
  %64 = icmp slt i64 %62, %63
  br i1 %64, label %70, label %65

65:                                               ; preds = %61
  store i32 7, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  br label %123

66:                                               ; preds = %51
  %67 = landingpad { ptr, i32 }
          cleanup
  %68 = extractvalue { ptr, i32 } %67, 0
  store ptr %68, ptr %6, align 8
  %69 = extractvalue { ptr, i32 } %67, 1
  store i32 %69, ptr %7, align 4
  br label %131

70:                                               ; preds = %61
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  %71 = load i64, ptr %12, align 8, !tbaa !5
  %72 = add nsw i64 %71, 1
  store i64 %72, ptr %14, align 8, !tbaa !5
  br label %73

73:                                               ; preds = %115, %70
  %74 = load i64, ptr %14, align 8, !tbaa !5
  %75 = load i64, ptr %3, align 8, !tbaa !5
  %76 = icmp slt i64 %74, %75
  br i1 %76, label %78, label %77

77:                                               ; preds = %73
  store i32 10, ptr %13, align 4
  br label %118

78:                                               ; preds = %73
  %79 = load i64, ptr %12, align 8, !tbaa !5
  %80 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %79) #6
  %81 = getelementptr inbounds %"struct.std::pair", ptr %80, i32 0, i32 0
  %82 = load i64, ptr %81, align 8, !tbaa !13
  %83 = load i64, ptr %14, align 8, !tbaa !5
  %84 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %83) #6
  %85 = getelementptr inbounds %"struct.std::pair", ptr %84, i32 0, i32 0
  %86 = load i64, ptr %85, align 8, !tbaa !13
  %87 = mul nsw i64 %82, %86
  %88 = load i64, ptr %3, align 8, !tbaa !5
  %89 = mul nsw i64 2, %88
  %90 = icmp sgt i64 %87, %89
  br i1 %90, label %91, label %92

91:                                               ; preds = %78
  store i32 10, ptr %13, align 4
  br label %118

92:                                               ; preds = %78
  %93 = load i64, ptr %12, align 8, !tbaa !5
  %94 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %93) #6
  %95 = getelementptr inbounds %"struct.std::pair", ptr %94, i32 0, i32 0
  %96 = load i64, ptr %95, align 8, !tbaa !13
  %97 = load i64, ptr %14, align 8, !tbaa !5
  %98 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %97) #6
  %99 = getelementptr inbounds %"struct.std::pair", ptr %98, i32 0, i32 0
  %100 = load i64, ptr %99, align 8, !tbaa !13
  %101 = mul nsw i64 %96, %100
  %102 = load i64, ptr %12, align 8, !tbaa !5
  %103 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %102) #6
  %104 = getelementptr inbounds %"struct.std::pair", ptr %103, i32 0, i32 1
  %105 = load i64, ptr %104, align 8, !tbaa !9
  %106 = load i64, ptr %14, align 8, !tbaa !5
  %107 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %106) #6
  %108 = getelementptr inbounds %"struct.std::pair", ptr %107, i32 0, i32 1
  %109 = load i64, ptr %108, align 8, !tbaa !9
  %110 = add nsw i64 %105, %109
  %111 = icmp eq i64 %101, %110
  %112 = zext i1 %111 to i64
  %113 = load i64, ptr %11, align 8, !tbaa !5
  %114 = add nsw i64 %113, %112
  store i64 %114, ptr %11, align 8, !tbaa !5
  br label %115

115:                                              ; preds = %92
  %116 = load i64, ptr %14, align 8, !tbaa !5
  %117 = add nsw i64 %116, 1
  store i64 %117, ptr %14, align 8, !tbaa !5
  br label %73, !llvm.loop !14

118:                                              ; preds = %91, %77
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  br label %119

119:                                              ; preds = %118
  br label %120

120:                                              ; preds = %119
  %121 = load i64, ptr %12, align 8, !tbaa !5
  %122 = add nsw i64 %121, 1
  store i64 %122, ptr %12, align 8, !tbaa !5
  br label %61, !llvm.loop !15

123:                                              ; preds = %65
  %124 = load i64, ptr %11, align 8, !tbaa !5
  %125 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %124)
          to label %126 unwind label %127

126:                                              ; preds = %123
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  br label %16, !llvm.loop !16

127:                                              ; preds = %123
  %128 = landingpad { ptr, i32 }
          cleanup
  %129 = extractvalue { ptr, i32 } %128, 0
  store ptr %129, ptr %6, align 8
  %130 = extractvalue { ptr, i32 } %128, 1
  store i32 %130, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  br label %131

131:                                              ; preds = %127, %66, %47
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  br label %132

132:                                              ; preds = %131, %29
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %135

133:                                              ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %134 = load i32, ptr %1, align 4
  ret i32 %134

135:                                              ; preds = %132
  %136 = load ptr, ptr %6, align 8
  %137 = load i32, ptr %7, align 4
  %138 = insertvalue { ptr, i32 } poison, ptr %136, 0
  %139 = insertvalue { ptr, i32 } %138, i32 %137, 1
  resume { ptr, i32 } %139
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

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(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!10, !6, i64 0}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator", align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %6 = load i64, ptr %1, align 8, !tbaa !5
  %7 = add nsw i64 %6, -1
  store i64 %7, ptr %1, align 8, !tbaa !5
  %.not40 = icmp eq i64 %6, 0
  br i1 %.not40, label %._crit_edge43, label %.lr.ph42

.lr.ph42:                                         ; preds = %0, %._crit_edge38
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  %9 = load i64, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  call void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %9, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %10 unwind label %17

10:                                               ; preds = %.lr.ph42
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = icmp sgt i64 %11, 0
  br i1 %12, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %10
  %13 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  %14 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %13, ptr %14)
          to label %.preheader unwind label %29

.preheader:                                       ; preds = %._crit_edge
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = icmp sgt i64 %15, 0
  br i1 %16, label %.lr.ph37, label %._crit_edge38

17:                                               ; preds = %.lr.ph42
  %18 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %63

.lr.ph:                                           ; preds = %10, %.lr.ph
  %.02527 = phi i64 [ %21, %.lr.ph ], [ 0, %10 ]
  %19 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.02527) #6
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %19)
  %21 = add nuw nsw i64 %.02527, 1
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.02527) #6
  %23 = getelementptr inbounds i8, ptr %22, i64 8
  store i64 %21, ptr %23, align 8, !tbaa !9
  %24 = load i64, ptr %2, align 8, !tbaa !5
  %25 = icmp slt i64 %21, %24
  br i1 %25, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge38:                                    ; preds = %._crit_edge32, %.preheader
  %.022.lcssa = phi i64 [ 0, %.preheader ], [ %.1.lcssa, %._crit_edge32 ]
  %26 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.022.lcssa)
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  %27 = load i64, ptr %1, align 8, !tbaa !5
  %28 = add nsw i64 %27, -1
  store i64 %28, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %27, 0
  br i1 %.not, label %._crit_edge43, label %.lr.ph42, !llvm.loop !13

29:                                               ; preds = %._crit_edge
  %30 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %63

.lr.ph37:                                         ; preds = %.preheader, %._crit_edge32
  %31 = phi i64 [ %61, %._crit_edge32 ], [ %15, %.preheader ]
  %.02136 = phi i64 [ %32, %._crit_edge32 ], [ 0, %.preheader ]
  %.02235 = phi i64 [ %.1.lcssa, %._crit_edge32 ], [ 0, %.preheader ]
  %32 = add nuw nsw i64 %.02136, 1
  %33 = icmp slt i64 %32, %31
  br i1 %33, label %.lr.ph31, label %._crit_edge32

.lr.ph31:                                         ; preds = %.lr.ph37, %42
  %.029 = phi i64 [ %58, %42 ], [ %32, %.lr.ph37 ]
  %.128 = phi i64 [ %57, %42 ], [ %.02235, %.lr.ph37 ]
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.02136) #6
  %35 = load i64, ptr %34, align 8, !tbaa !14
  %36 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.029) #6
  %37 = load i64, ptr %36, align 8, !tbaa !14
  %38 = mul nsw i64 %37, %35
  %39 = load i64, ptr %2, align 8, !tbaa !5
  %40 = shl nsw i64 %39, 1
  %41 = icmp sgt i64 %38, %40
  br i1 %41, label %._crit_edge32, label %42

42:                                               ; preds = %.lr.ph31
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.02136) #6
  %44 = load i64, ptr %43, align 8, !tbaa !14
  %45 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.029) #6
  %46 = load i64, ptr %45, align 8, !tbaa !14
  %47 = mul nsw i64 %46, %44
  %48 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.02136) #6
  %49 = getelementptr inbounds i8, ptr %48, i64 8
  %50 = load i64, ptr %49, align 8, !tbaa !9
  %51 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.029) #6
  %52 = getelementptr inbounds i8, ptr %51, i64 8
  %53 = load i64, ptr %52, align 8, !tbaa !9
  %54 = add nsw i64 %53, %50
  %55 = icmp eq i64 %47, %54
  %56 = zext i1 %55 to i64
  %57 = add nsw i64 %.128, %56
  %58 = add nuw nsw i64 %.029, 1
  %59 = load i64, ptr %2, align 8, !tbaa !5
  %60 = icmp slt i64 %58, %59
  br i1 %60, label %.lr.ph31, label %._crit_edge32, !llvm.loop !15

._crit_edge32:                                    ; preds = %42, %.lr.ph31, %.lr.ph37
  %61 = phi i64 [ %31, %.lr.ph37 ], [ %39, %.lr.ph31 ], [ %59, %42 ]
  %.1.lcssa = phi i64 [ %.02235, %.lr.ph37 ], [ %.128, %.lr.ph31 ], [ %57, %42 ]
  %62 = icmp slt i64 %32, %61
  br i1 %62, label %.lr.ph37, label %._crit_edge38, !llvm.loop !16

63:                                               ; preds = %29, %17
  %.pn = phi { ptr, i32 } [ %30, %29 ], [ %18, %17 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn

._crit_edge43:                                    ; preds = %._crit_edge38, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  ret i32 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: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

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(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = !{!10, !6, i64 0}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}


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