; LLVM IR from DionysiosB/CodeForces :: 1100-1199 (1101C-DivisionAndUnion)

; 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>, std::allocator<std::pair<long, long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long, long>, std::allocator<std::pair<long, long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long, long>, std::allocator<std::pair<long, long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long, long>, std::allocator<std::pair<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 [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [1 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 %"class.std::vector", align 8
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca i64, align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca i64, align 8
  %14 = alloca i64, align 8
  %15 = alloca i32, align 4
  %16 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %18

18:                                               ; preds = %140, %0
  %19 = load i64, ptr %2, align 8, !tbaa !5
  %20 = add nsw i64 %19, -1
  store i64 %20, ptr %2, align 8, !tbaa !5
  %21 = icmp ne i64 %19, 0
  br i1 %21, label %22, label %145

22:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #6
  %24 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #6
  call void @_ZNSaISt4pairIllEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %24, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %25 unwind label %33

25:                                               ; preds = %22
  call void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(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 24, ptr %8) #6
  %26 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #6
  call void @_ZNSaISt4pairIllEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %26, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %27 unwind label %37

27:                                               ; preds = %25
  call void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  store i64 0, ptr %10, align 8, !tbaa !5
  br label %28

28:                                               ; preds = %56, %27
  %29 = load i64, ptr %10, align 8, !tbaa !5
  %30 = load i64, ptr %3, align 8, !tbaa !5
  %31 = icmp slt i64 %29, %30
  br i1 %31, label %41, label %32

32:                                               ; preds = %28
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %63

33:                                               ; preds = %22
  %34 = landingpad { ptr, i32 }
          cleanup
  %35 = extractvalue { ptr, i32 } %34, 0
  store ptr %35, ptr %6, align 8
  %36 = extractvalue { ptr, i32 } %34, 1
  store i32 %36, ptr %7, align 4
  call void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  br label %144

37:                                               ; preds = %25
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %6, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %7, align 4
  call void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #6
  br label %143

41:                                               ; preds = %28
  %42 = load i64, ptr %10, align 8, !tbaa !5
  %43 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %42) #6
  %44 = getelementptr inbounds %"struct.std::pair", ptr %43, i32 0, i32 0
  %45 = load i64, ptr %10, align 8, !tbaa !5
  %46 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %45) #6
  %47 = getelementptr inbounds %"struct.std::pair", ptr %46, i32 0, i32 1
  %48 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %44, ptr noundef %47)
          to label %49 unwind label %59

49:                                               ; preds = %41
  %50 = load i64, ptr %10, align 8, !tbaa !5
  %51 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %50) #6
  %52 = load i64, ptr %10, align 8, !tbaa !5
  %53 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %52) #6
  %54 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt4pairIllEaSERKS0_(ptr noundef nonnull align 8 dereferenceable(16) %53, ptr noundef nonnull align 8 dereferenceable(16) %51)
          to label %55 unwind label %59

55:                                               ; preds = %49
  br label %56

56:                                               ; preds = %55
  %57 = load i64, ptr %10, align 8, !tbaa !5
  %58 = add nsw i64 %57, 1
  store i64 %58, ptr %10, align 8, !tbaa !5
  br label %28, !llvm.loop !9

59:                                               ; preds = %49, %41
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %6, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %142

63:                                               ; preds = %32
  %64 = call ptr @_ZNSt6vectorISt4pairIllESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  %65 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %64, ptr %65, align 8
  %66 = call ptr @_ZNSt6vectorISt4pairIllESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  %67 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %66, ptr %67, align 8
  %68 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %69 = load ptr, ptr %68, align 8
  %70 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  %71 = load ptr, ptr %70, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIllESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %69, ptr %71)
          to label %72 unwind label %78

72:                                               ; preds = %63
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  store i64 -1, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  store i64 1, ptr %14, align 8, !tbaa !5
  br label %73

73:                                               ; preds = %99, %72
  %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 %82, label %77

77:                                               ; preds = %73
  store i32 7, ptr %15, align 4
  br label %102

78:                                               ; preds = %63
  %79 = landingpad { ptr, i32 }
          cleanup
  %80 = extractvalue { ptr, i32 } %79, 0
  store ptr %80, ptr %6, align 8
  %81 = extractvalue { ptr, i32 } %79, 1
  store i32 %81, ptr %7, align 4
  br label %142

82:                                               ; preds = %73
  %83 = load i64, ptr %14, align 8, !tbaa !5
  %84 = sub nsw i64 %83, 1
  %85 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %84) #6
  %86 = getelementptr inbounds %"struct.std::pair", ptr %85, i32 0, i32 1
  %87 = load i64, ptr %86, align 8, !tbaa !11
  %88 = load i64, ptr %14, align 8, !tbaa !5
  %89 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %88) #6
  %90 = getelementptr inbounds %"struct.std::pair", ptr %89, i32 0, i32 0
  %91 = load i64, ptr %90, align 8, !tbaa !13
  %92 = icmp slt i64 %87, %91
  br i1 %92, label %93, label %98

93:                                               ; preds = %82
  %94 = load i64, ptr %14, align 8, !tbaa !5
  %95 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %94) #6
  %96 = getelementptr inbounds %"struct.std::pair", ptr %95, i32 0, i32 0
  %97 = load i64, ptr %96, align 8, !tbaa !13
  store i64 %97, ptr %13, align 8, !tbaa !5
  store i32 7, ptr %15, align 4
  br label %102

98:                                               ; preds = %82
  br label %99

99:                                               ; preds = %98
  %100 = load i64, ptr %14, align 8, !tbaa !5
  %101 = add nsw i64 %100, 1
  store i64 %101, ptr %14, align 8, !tbaa !5
  br label %73, !llvm.loop !14

102:                                              ; preds = %93, %77
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  br label %103

103:                                              ; preds = %102
  %104 = load i64, ptr %13, align 8, !tbaa !5
  %105 = icmp slt i64 %104, 0
  br i1 %105, label %106, label %113

106:                                              ; preds = %103
  %107 = invoke i32 @puts(ptr noundef @.str.2)
          to label %108 unwind label %109

108:                                              ; preds = %106
  br label %140

109:                                              ; preds = %137, %106
  %110 = landingpad { ptr, i32 }
          cleanup
  %111 = extractvalue { ptr, i32 } %110, 0
  store ptr %111, ptr %6, align 8
  %112 = extractvalue { ptr, i32 } %110, 1
  store i32 %112, ptr %7, align 4
  br label %141

113:                                              ; preds = %103
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #6
  store i64 0, ptr %16, align 8, !tbaa !5
  br label %114

114:                                              ; preds = %130, %113
  %115 = load i64, ptr %16, align 8, !tbaa !5
  %116 = load i64, ptr %3, align 8, !tbaa !5
  %117 = icmp slt i64 %115, %116
  br i1 %117, label %119, label %118

118:                                              ; preds = %114
  store i32 10, ptr %15, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  br label %137

119:                                              ; preds = %114
  %120 = load i64, ptr %16, align 8, !tbaa !5
  %121 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %120) #6
  %122 = getelementptr inbounds %"struct.std::pair", ptr %121, i32 0, i32 0
  %123 = load i64, ptr %122, align 8, !tbaa !13
  %124 = load i64, ptr %13, align 8, !tbaa !5
  %125 = icmp sge i64 %123, %124
  %126 = zext i1 %125 to i32
  %127 = add nsw i32 1, %126
  %128 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %127)
          to label %129 unwind label %133

129:                                              ; preds = %119
  br label %130

130:                                              ; preds = %129
  %131 = load i64, ptr %16, align 8, !tbaa !5
  %132 = add nsw i64 %131, 1
  store i64 %132, ptr %16, align 8, !tbaa !5
  br label %114, !llvm.loop !15

133:                                              ; preds = %119
  %134 = landingpad { ptr, i32 }
          cleanup
  %135 = extractvalue { ptr, i32 } %134, 0
  store ptr %135, ptr %6, align 8
  %136 = extractvalue { ptr, i32 } %134, 1
  store i32 %136, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  br label %141

137:                                              ; preds = %118
  %138 = invoke i32 @puts(ptr noundef @.str.4)
          to label %139 unwind label %109

139:                                              ; preds = %137
  br label %140

140:                                              ; preds = %139, %108
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #6
  call void @_ZNSt6vectorISt4pairIllESaIS1_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 %18, !llvm.loop !16

141:                                              ; preds = %133, %109
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  br label %142

142:                                              ; preds = %141, %78, %59
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  br label %143

143:                                              ; preds = %142, %37
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #6
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  br label %144

144:                                              ; preds = %143, %33
  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 %147

145:                                              ; preds = %18
  store i32 0, ptr %1, align 4
  store i32 1, ptr %15, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %146 = load i32, ptr %1, align 4
  ret i32 %146

147:                                              ; preds = %144
  %148 = load ptr, ptr %6, align 8
  %149 = load i32, ptr %7, align 4
  %150 = insertvalue { ptr, i32 } poison, ptr %148, 0
  %151 = insertvalue { ptr, i32 } %150, i32 %149, 1
  resume { ptr, i32 } %151
}

; 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 @_ZNSaISt4pairIllEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_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 @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt4pairIllEaSERKS0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIllESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIllESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIllESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

declare i32 @puts(ptr noundef) #2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(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", !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 8}
!12 = !{!"_ZTSSt4pairIllE", !6, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 0}
!14 = distinct !{!14, !10}
!15 = distinct !{!15, !10}
!16 = distinct !{!16, !10}


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

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

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [1 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
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::allocator", align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %8 = load i64, ptr %1, align 8, !tbaa !5
  %9 = add nsw i64 %8, -1
  store i64 %9, ptr %1, align 8, !tbaa !5
  %.not37 = icmp eq i64 %8, 0
  br i1 %.not37, label %._crit_edge40, label %.lr.ph39

.lr.ph39:                                         ; preds = %0, %.thread
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %10 = 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
  %11 = load i64, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  call void @_ZNSaISt4pairIllEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %11, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %12 unwind label %21

12:                                               ; preds = %.lr.ph39
  call void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #6
  %13 = load i64, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #6
  call void @_ZNSaISt4pairIllEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %13, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %14 unwind label %23

14:                                               ; preds = %12
  call void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = icmp sgt i64 %15, 0
  br i1 %16, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %14
  %17 = call ptr @_ZNSt6vectorISt4pairIllESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  %18 = call ptr @_ZNSt6vectorISt4pairIllESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIllESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %17, ptr %18)
          to label %.preheader29 unwind label %35

.preheader29:                                     ; preds = %._crit_edge
  %19 = load i64, ptr %2, align 8, !tbaa !5
  %20 = icmp sgt i64 %19, 1
  br i1 %20, label %.lr.ph33, label %.thread

21:                                               ; preds = %.lr.ph39
  %22 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %65

23:                                               ; preds = %12
  %24 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  br label %64

.lr.ph:                                           ; preds = %14, %.lr.ph
  %.02231 = phi i64 [ %32, %.lr.ph ], [ 0, %14 ]
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.02231) #6
  %26 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.02231) #6
  %27 = getelementptr inbounds i8, ptr %26, i64 8
  %28 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %25, ptr noundef nonnull %27)
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.02231) #6
  %30 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %.02231) #6
  %31 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt4pairIllEaSERKS0_(ptr noundef nonnull align 8 dereferenceable(16) %30, ptr noundef nonnull align 8 dereferenceable(16) %29)
  %32 = add nuw nsw i64 %.02231, 1
  %33 = load i64, ptr %2, align 8, !tbaa !5
  %34 = icmp slt i64 %32, %33
  br i1 %34, label %.lr.ph, label %._crit_edge, !llvm.loop !9

35:                                               ; preds = %._crit_edge
  %36 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  br label %64

.lr.ph33:                                         ; preds = %.preheader29, %44
  %.01932 = phi i64 [ %45, %44 ], [ 1, %.preheader29 ]
  %37 = add nsw i64 %.01932, -1
  %38 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %37) #6
  %39 = getelementptr inbounds i8, ptr %38, i64 8
  %40 = load i64, ptr %39, align 8, !tbaa !11
  %41 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %.01932) #6
  %42 = load i64, ptr %41, align 8, !tbaa !13
  %43 = icmp slt i64 %40, %42
  br i1 %43, label %48, label %44

44:                                               ; preds = %.lr.ph33
  %45 = add nuw nsw i64 %.01932, 1
  %46 = load i64, ptr %2, align 8, !tbaa !5
  %47 = icmp slt i64 %45, %46
  br i1 %47, label %.lr.ph33, label %.thread, !llvm.loop !14

48:                                               ; preds = %.lr.ph33
  %49 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %.01932) #6
  %50 = load i64, ptr %49, align 8, !tbaa !13
  %51 = icmp slt i64 %50, 0
  br i1 %51, label %.thread, label %.preheader

.preheader:                                       ; preds = %48
  %52 = load i64, ptr %2, align 8, !tbaa !5
  %53 = icmp sgt i64 %52, 0
  br i1 %53, label %.lr.ph35, label %.thread

.lr.ph35:                                         ; preds = %.preheader, %.lr.ph35
  %.034 = phi i64 [ %58, %.lr.ph35 ], [ 0, %.preheader ]
  %54 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.034) #6
  %55 = load i64, ptr %54, align 8, !tbaa !13
  %.not27 = icmp slt i64 %55, %50
  %56 = select i1 %.not27, i32 1, i32 2
  %57 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %56)
  %58 = add nuw nsw i64 %.034, 1
  %59 = load i64, ptr %2, align 8, !tbaa !5
  %60 = icmp slt i64 %58, %59
  br i1 %60, label %.lr.ph35, label %.thread, !llvm.loop !15

.thread:                                          ; preds = %44, %.lr.ph35, %.preheader, %48, %.preheader29
  %.str.4.sink = phi ptr [ @.str.2, %.preheader29 ], [ @.str.2, %48 ], [ @.str.4, %.preheader ], [ @.str.4, %.lr.ph35 ], [ @.str.2, %44 ]
  %61 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %.str.4.sink)
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #6
  call void @_ZNSt6vectorISt4pairIllESaIS1_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
  %62 = load i64, ptr %1, align 8, !tbaa !5
  %63 = add nsw i64 %62, -1
  store i64 %63, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %62, 0
  br i1 %.not, label %._crit_edge40, label %.lr.ph39, !llvm.loop !16

64:                                               ; preds = %35, %23
  %.pn = phi { ptr, i32 } [ %36, %35 ], [ %24, %23 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #6
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %65

65:                                               ; preds = %64, %21
  %.pn.pn = phi { ptr, i32 } [ %.pn, %64 ], [ %22, %21 ]
  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.pn

._crit_edge40:                                    ; preds = %.thread, %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 @_ZNSaISt4pairIllEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_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 @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt4pairIllEaSERKS0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIllESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIllESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIllESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #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 @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIllEED2Ev(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", !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 8}
!12 = !{!"_ZTSSt4pairIllE", !6, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 0}
!14 = distinct !{!14, !10}
!15 = distinct !{!15, !10}
!16 = distinct !{!16, !10}


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