; LLVM IR from DionysiosB/CodeForces :: 1876A-HelmetsInNightLight (main)

; 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 [10 x i8], align 1
@.str.2 = 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 i64, align 8
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i64, align 8
  %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 i64, align 8
  %16 = alloca i32, align 4
  %17 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %19

19:                                               ; preds = %137, %0
  %20 = load i64, ptr %2, align 8, !tbaa !5
  %21 = add nsw i64 %20, -1
  store i64 %21, ptr %2, align 8, !tbaa !5
  %22 = icmp ne i64 %20, 0
  br i1 %22, label %23, label %144

23:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  %24 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4)
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #6
  %25 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #6
  call void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  invoke void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %25, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %26 unwind label %32

26:                                               ; preds = %23
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  store i64 0, ptr %9, align 8, !tbaa !5
  br label %27

27:                                               ; preds = %42, %26
  %28 = load i64, ptr %9, align 8, !tbaa !5
  %29 = load i64, ptr %3, align 8, !tbaa !5
  %30 = icmp slt i64 %28, %29
  br i1 %30, label %36, label %31

31:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %49

32:                                               ; preds = %23
  %33 = landingpad { ptr, i32 }
          cleanup
  %34 = extractvalue { ptr, i32 } %33, 0
  store ptr %34, ptr %7, align 8
  %35 = extractvalue { ptr, i32 } %33, 1
  store i32 %35, ptr %8, align 4
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #6
  br label %143

36:                                               ; preds = %27
  %37 = load i64, ptr %9, align 8, !tbaa !5
  %38 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %37) #6
  %39 = getelementptr inbounds %"struct.std::pair", ptr %38, i32 0, i32 1
  %40 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %39)
          to label %41 unwind label %45

41:                                               ; preds = %36
  br label %42

42:                                               ; preds = %41
  %43 = load i64, ptr %9, align 8, !tbaa !5
  %44 = add nsw i64 %43, 1
  store i64 %44, ptr %9, align 8, !tbaa !5
  br label %27, !llvm.loop !9

45:                                               ; preds = %36
  %46 = landingpad { ptr, i32 }
          cleanup
  %47 = extractvalue { ptr, i32 } %46, 0
  store ptr %47, ptr %7, align 8
  %48 = extractvalue { ptr, i32 } %46, 1
  store i32 %48, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %142

49:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  store i64 0, ptr %10, align 8, !tbaa !5
  br label %50

50:                                               ; preds = %61, %49
  %51 = load i64, ptr %10, align 8, !tbaa !5
  %52 = load i64, ptr %3, align 8, !tbaa !5
  %53 = icmp slt i64 %51, %52
  br i1 %53, label %55, label %54

54:                                               ; preds = %50
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %68

55:                                               ; preds = %50
  %56 = load i64, ptr %10, align 8, !tbaa !5
  %57 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %56) #6
  %58 = getelementptr inbounds %"struct.std::pair", ptr %57, i32 0, i32 0
  %59 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %58)
          to label %60 unwind label %64

60:                                               ; preds = %55
  br label %61

61:                                               ; preds = %60
  %62 = load i64, ptr %10, align 8, !tbaa !5
  %63 = add nsw i64 %62, 1
  store i64 %63, ptr %10, align 8, !tbaa !5
  br label %50, !llvm.loop !11

64:                                               ; preds = %55
  %65 = landingpad { ptr, i32 }
          cleanup
  %66 = extractvalue { ptr, i32 } %65, 0
  store ptr %66, ptr %7, align 8
  %67 = extractvalue { ptr, i32 } %65, 1
  store i32 %67, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %142

68:                                               ; preds = %54
  %69 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  %70 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %69, ptr %70, align 8
  %71 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  %72 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %71, ptr %72, align 8
  %73 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  %74 = load ptr, ptr %73, align 8
  %75 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  %76 = load ptr, ptr %75, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %74, ptr %76)
          to label %77 unwind label %86

77:                                               ; preds = %68
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  %78 = load i64, ptr %3, align 8, !tbaa !5
  %79 = sub nsw i64 %78, 1
  store i64 %79, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  %80 = load i64, ptr %4, align 8, !tbaa !5
  store i64 %80, ptr %14, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #6
  store i64 0, ptr %15, align 8, !tbaa !5
  br label %81

81:                                               ; preds = %125, %77
  %82 = load i64, ptr %15, align 8, !tbaa !5
  %83 = load i64, ptr %3, align 8, !tbaa !5
  %84 = icmp slt i64 %82, %83
  br i1 %84, label %90, label %85

85:                                               ; preds = %81
  store i32 10, ptr %16, align 4
  br label %128

86:                                               ; preds = %68
  %87 = landingpad { ptr, i32 }
          cleanup
  %88 = extractvalue { ptr, i32 } %87, 0
  store ptr %88, ptr %7, align 8
  %89 = extractvalue { ptr, i32 } %87, 1
  store i32 %89, ptr %8, align 4
  br label %142

90:                                               ; preds = %81
  %91 = load i64, ptr %15, align 8, !tbaa !5
  %92 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %91) #6
  %93 = getelementptr inbounds %"struct.std::pair", ptr %92, i32 0, i32 0
  %94 = load i64, ptr %93, align 8, !tbaa !12
  %95 = load i64, ptr %4, align 8, !tbaa !5
  %96 = icmp sge i64 %94, %95
  br i1 %96, label %97, label %98

97:                                               ; preds = %90
  store i32 10, ptr %16, align 4
  br label %128

98:                                               ; preds = %90
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #6
  %99 = load i64, ptr %13, align 8, !tbaa !5
  %100 = load i64, ptr %15, align 8, !tbaa !5
  %101 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %100) #6
  %102 = getelementptr inbounds %"struct.std::pair", ptr %101, i32 0, i32 1
  %103 = load i64, ptr %102, align 8, !tbaa !14
  %104 = icmp slt i64 %99, %103
  br i1 %104, label %105, label %107

105:                                              ; preds = %98
  %106 = load i64, ptr %13, align 8, !tbaa !5
  br label %112

107:                                              ; preds = %98
  %108 = load i64, ptr %15, align 8, !tbaa !5
  %109 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %108) #6
  %110 = getelementptr inbounds %"struct.std::pair", ptr %109, i32 0, i32 1
  %111 = load i64, ptr %110, align 8, !tbaa !14
  br label %112

112:                                              ; preds = %107, %105
  %113 = phi i64 [ %106, %105 ], [ %111, %107 ]
  store i64 %113, ptr %17, align 8, !tbaa !5
  %114 = load i64, ptr %17, align 8, !tbaa !5
  %115 = load i64, ptr %15, align 8, !tbaa !5
  %116 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %115) #6
  %117 = getelementptr inbounds %"struct.std::pair", ptr %116, i32 0, i32 0
  %118 = load i64, ptr %117, align 8, !tbaa !12
  %119 = mul nsw i64 %114, %118
  %120 = load i64, ptr %14, align 8, !tbaa !5
  %121 = add nsw i64 %120, %119
  store i64 %121, ptr %14, align 8, !tbaa !5
  %122 = load i64, ptr %17, align 8, !tbaa !5
  %123 = load i64, ptr %13, align 8, !tbaa !5
  %124 = sub nsw i64 %123, %122
  store i64 %124, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #6
  br label %125

125:                                              ; preds = %112
  %126 = load i64, ptr %15, align 8, !tbaa !5
  %127 = add nsw i64 %126, 1
  store i64 %127, ptr %15, align 8, !tbaa !5
  br label %81, !llvm.loop !15

128:                                              ; preds = %97, %85
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #6
  br label %129

129:                                              ; preds = %128
  %130 = load i64, ptr %4, align 8, !tbaa !5
  %131 = load i64, ptr %13, align 8, !tbaa !5
  %132 = mul nsw i64 %130, %131
  %133 = load i64, ptr %14, align 8, !tbaa !5
  %134 = add nsw i64 %133, %132
  store i64 %134, ptr %14, align 8, !tbaa !5
  %135 = load i64, ptr %14, align 8, !tbaa !5
  %136 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %135)
          to label %137 unwind label %138

137:                                              ; preds = %129
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  br label %19, !llvm.loop !16

138:                                              ; preds = %129
  %139 = landingpad { ptr, i32 }
          cleanup
  %140 = extractvalue { ptr, i32 } %139, 0
  store ptr %140, ptr %7, align 8
  %141 = extractvalue { ptr, i32 } %139, 1
  store i32 %141, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  br label %142

142:                                              ; preds = %138, %86, %64, %45
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  br label %143

143:                                              ; preds = %142, %32
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 8, 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 %146

144:                                              ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %145 = load i32, ptr %1, align 4
  ret i32 %145

146:                                              ; preds = %143
  %147 = load ptr, ptr %7, align 8
  %148 = load i32, ptr %8, align 4
  %149 = insertvalue { ptr, i32 } poison, ptr %147, 0
  %150 = insertvalue { ptr, i32 } %149, i32 %148, 1
  resume { ptr, i32 } %150
}

; 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = !{!13, !6, i64 0}
!13 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!14 = !{!13, !6, i64 8}
!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, 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 [10 x i8], align 1
@.str.2 = 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 i64, align 8
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::allocator", align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %7 = load i64, ptr %1, align 8, !tbaa !5
  %8 = add nsw i64 %7, -1
  store i64 %8, ptr %1, align 8, !tbaa !5
  %.not45 = icmp eq i64 %7, 0
  br i1 %.not45, label %._crit_edge48, label %.lr.ph47

.lr.ph47:                                         ; preds = %0, %._crit_edge40
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #6
  %10 = load i64, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %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 %10, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %11 unwind label %15

11:                                               ; preds = %.lr.ph47
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %13 = icmp sgt i64 %12, 0
  br i1 %13, label %.lr.ph, label %._crit_edge

.preheader:                                       ; preds = %.lr.ph
  %14 = icmp sgt i64 %21, 0
  br i1 %14, label %.lr.ph34, label %._crit_edge

15:                                               ; preds = %.lr.ph47
  %16 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  br label %65

.lr.ph:                                           ; preds = %11, %.lr.ph
  %.02832 = phi i64 [ %20, %.lr.ph ], [ 0, %11 ]
  %17 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %.02832) #6
  %18 = getelementptr inbounds i8, ptr %17, i64 8
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %18)
  %20 = add nuw nsw i64 %.02832, 1
  %21 = load i64, ptr %2, align 8, !tbaa !5
  %22 = icmp slt i64 %20, %21
  br i1 %22, label %.lr.ph, label %.preheader, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph34, %11, %.preheader
  %23 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %24 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %23, ptr %24)
          to label %30 unwind label %35

.lr.ph34:                                         ; preds = %.preheader, %.lr.ph34
  %.02933 = phi i64 [ %27, %.lr.ph34 ], [ 0, %.preheader ]
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %.02933) #6
  %26 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %25)
  %27 = add nuw nsw i64 %.02933, 1
  %28 = load i64, ptr %2, align 8, !tbaa !5
  %29 = icmp slt i64 %27, %28
  br i1 %29, label %.lr.ph34, label %._crit_edge, !llvm.loop !11

30:                                               ; preds = %._crit_edge
  %31 = load i64, ptr %2, align 8, !tbaa !5
  %32 = add nsw i64 %31, -1
  %33 = load i64, ptr %3, align 8, !tbaa !5
  %34 = icmp sgt i64 %31, 0
  br i1 %34, label %.lr.ph39, label %._crit_edge40

35:                                               ; preds = %._crit_edge
  %36 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  br label %65

.lr.ph39:                                         ; preds = %30, %49
  %.02437 = phi i64 [ %56, %49 ], [ 0, %30 ]
  %.02536 = phi i64 [ %54, %49 ], [ %33, %30 ]
  %.02635 = phi i64 [ %55, %49 ], [ %32, %30 ]
  %37 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %.02437) #6
  %38 = load i64, ptr %37, align 8, !tbaa !12
  %39 = load i64, ptr %3, align 8, !tbaa !5
  %.not31 = icmp slt i64 %38, %39
  br i1 %.not31, label %40, label %._crit_edge40

40:                                               ; preds = %.lr.ph39
  %41 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %.02437) #6
  %42 = getelementptr inbounds i8, ptr %41, i64 8
  %43 = load i64, ptr %42, align 8, !tbaa !14
  %44 = icmp slt i64 %.02635, %43
  br i1 %44, label %49, label %45

45:                                               ; preds = %40
  %46 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %.02437) #6
  %47 = getelementptr inbounds i8, ptr %46, i64 8
  %48 = load i64, ptr %47, align 8, !tbaa !14
  br label %49

49:                                               ; preds = %40, %45
  %50 = phi i64 [ %48, %45 ], [ %.02635, %40 ]
  %51 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %.02437) #6
  %52 = load i64, ptr %51, align 8, !tbaa !12
  %53 = mul nsw i64 %52, %50
  %54 = add nsw i64 %53, %.02536
  %55 = sub nsw i64 %.02635, %50
  %56 = add nuw nsw i64 %.02437, 1
  %57 = load i64, ptr %2, align 8, !tbaa !5
  %58 = icmp slt i64 %56, %57
  br i1 %58, label %.lr.ph39, label %.._crit_edge40.loopexit_crit_edge, !llvm.loop !15

.._crit_edge40.loopexit_crit_edge:                ; preds = %49
  %.pre.pre = load i64, ptr %3, align 8, !tbaa !5
  br label %._crit_edge40

._crit_edge40:                                    ; preds = %.lr.ph39, %.._crit_edge40.loopexit_crit_edge, %30
  %59 = phi i64 [ %33, %30 ], [ %.pre.pre, %.._crit_edge40.loopexit_crit_edge ], [ %39, %.lr.ph39 ]
  %.026.lcssa = phi i64 [ %32, %30 ], [ %55, %.._crit_edge40.loopexit_crit_edge ], [ %.02635, %.lr.ph39 ]
  %.025.lcssa = phi i64 [ %33, %30 ], [ %54, %.._crit_edge40.loopexit_crit_edge ], [ %.02536, %.lr.ph39 ]
  %60 = mul nsw i64 %59, %.026.lcssa
  %61 = add nsw i64 %60, %.025.lcssa
  %62 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %61)
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  %63 = load i64, ptr %1, align 8, !tbaa !5
  %64 = add nsw i64 %63, -1
  store i64 %64, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %63, 0
  br i1 %.not, label %._crit_edge48, label %.lr.ph47, !llvm.loop !16

65:                                               ; preds = %35, %15
  %.pn = phi { ptr, i32 } [ %36, %35 ], [ %16, %15 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 8, 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_edge48:                                    ; preds = %._crit_edge40, %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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = !{!13, !6, i64 0}
!13 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!14 = !{!13, !6, i64 8}
!15 = distinct !{!15, !10}
!16 = distinct !{!16, !10}


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