; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/336 Division 2/Problem C (C)

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

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"struct.std::pair" = type { i32, i32 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@n = external dso_local global i32, align 4
@x = external dso_local global i32, align 4
@y = external dso_local global i32, align 4
@v = external dso_local global %"class.std::vector", align 8
@dp = external dso_local global [100100 x i32], align 16
@l = external dso_local global [100100 x i32], align 16
@ans = external dso_local global i32, align 4
@inf = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"struct.std::pair", align 4
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"struct.std::pair", align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %14 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @n)
  %16 = load i32, ptr @n, align 4, !tbaa !5
  %17 = icmp eq i32 %16, 1
  br i1 %17, label %18, label %21

18:                                               ; preds = %0
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef 0)
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %19, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  store i32 0, ptr %1, align 4
  br label %127

21:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %30, %21
  %23 = load i32, ptr %2, align 4, !tbaa !5
  %24 = load i32, ptr @n, align 4, !tbaa !5
  %25 = icmp slt i32 %23, %24
  br i1 %25, label %27, label %26

26:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %33

27:                                               ; preds = %22
  %28 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.2, ptr noundef @x, ptr noundef @y)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #7
  %29 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) @x, ptr noundef nonnull align 4 dereferenceable(4) @y)
  store i64 %29, ptr %3, align 4
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @v, ptr noundef nonnull align 4 dereferenceable(8) %3)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #7
  br label %30

30:                                               ; preds = %27
  %31 = load i32, ptr %2, align 4, !tbaa !5
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %2, align 4, !tbaa !5
  br label %22, !llvm.loop !9

33:                                               ; preds = %26
  %34 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  %35 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %4, i32 0, i32 0
  store ptr %34, ptr %35, align 8
  %36 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  %37 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %5, i32 0, i32 0
  store ptr %36, ptr %37, align 8
  %38 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %4, i32 0, i32 0
  %39 = load ptr, ptr %38, align 8
  %40 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %5, i32 0, i32 0
  %41 = load ptr, ptr %40, align 8
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %39, ptr %41)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 1, ptr %6, align 4, !tbaa !5
  br label %42

42:                                               ; preds = %120, %33
  %43 = load i32, ptr %6, align 4, !tbaa !5
  %44 = load i32, ptr @n, align 4, !tbaa !5
  %45 = icmp slt i32 %43, %44
  br i1 %45, label %47, label %46

46:                                               ; preds = %42
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %123

47:                                               ; preds = %42
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #7
  %48 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  %49 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  store ptr %48, ptr %49, align 8
  %50 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  %51 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %50, ptr %51, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #7
  %52 = load i32, ptr %6, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %53) #7
  %55 = getelementptr inbounds %"struct.std::pair", ptr %54, i32 0, i32 0
  %56 = load i32, ptr %55, align 4, !tbaa !11
  %57 = load i32, ptr %6, align 4, !tbaa !5
  %58 = sext i32 %57 to i64
  %59 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %58) #7
  %60 = getelementptr inbounds %"struct.std::pair", ptr %59, i32 0, i32 1
  %61 = load i32, ptr %60, align 4, !tbaa !13
  %62 = sub nsw i32 %56, %61
  store i32 %62, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  %63 = load i32, ptr @inf, align 4, !tbaa !5
  %64 = sub nsw i32 0, %63
  store i32 %64, ptr %12, align 4, !tbaa !5
  %65 = call i64 @_ZSt9make_pairIiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS1_INS2_IT0_E4typeEE6__typeEEOS3_OS8_(ptr noundef nonnull align 4 dereferenceable(4) %11, ptr noundef nonnull align 4 dereferenceable(4) %12)
  store i64 %65, ptr %10, align 4
  %66 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %8, i32 0, i32 0
  %67 = load ptr, ptr %66, align 8
  %68 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  %69 = load ptr, ptr %68, align 8
  %70 = call ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr %67, ptr %69, ptr noundef nonnull align 4 dereferenceable(8) %10)
  %71 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %70, ptr %71, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #7
  %72 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #7
  %73 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %13, i32 0, i32 0
  store ptr %72, ptr %73, align 8
  %74 = call noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %13) #7
  %75 = trunc i64 %74 to i32
  %76 = load i32, ptr %6, align 4, !tbaa !5
  %77 = sext i32 %76 to i64
  %78 = getelementptr inbounds [100100 x i32], ptr @l, i64 0, i64 %77
  store i32 %75, ptr %78, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #7
  %79 = load i32, ptr %6, align 4, !tbaa !5
  %80 = sext i32 %79 to i64
  %81 = getelementptr inbounds [100100 x i32], ptr @l, i64 0, i64 %80
  %82 = load i32, ptr %81, align 4, !tbaa !5
  %83 = icmp eq i32 %82, 0
  br i1 %83, label %84, label %89

84:                                               ; preds = %47
  %85 = load i32, ptr %6, align 4, !tbaa !5
  %86 = load i32, ptr %6, align 4, !tbaa !5
  %87 = sext i32 %86 to i64
  %88 = getelementptr inbounds [100100 x i32], ptr @dp, i64 0, i64 %87
  store i32 %85, ptr %88, align 4, !tbaa !5
  br label %108

89:                                               ; preds = %47
  %90 = load i32, ptr %6, align 4, !tbaa !5
  %91 = sext i32 %90 to i64
  %92 = getelementptr inbounds [100100 x i32], ptr @l, i64 0, i64 %91
  %93 = load i32, ptr %92, align 4, !tbaa !5
  %94 = sub nsw i32 %93, 1
  %95 = sext i32 %94 to i64
  %96 = getelementptr inbounds [100100 x i32], ptr @dp, i64 0, i64 %95
  %97 = load i32, ptr %96, align 4, !tbaa !5
  %98 = load i32, ptr %6, align 4, !tbaa !5
  %99 = load i32, ptr %6, align 4, !tbaa !5
  %100 = sext i32 %99 to i64
  %101 = getelementptr inbounds [100100 x i32], ptr @l, i64 0, i64 %100
  %102 = load i32, ptr %101, align 4, !tbaa !5
  %103 = sub nsw i32 %98, %102
  %104 = add nsw i32 %97, %103
  %105 = load i32, ptr %6, align 4, !tbaa !5
  %106 = sext i32 %105 to i64
  %107 = getelementptr inbounds [100100 x i32], ptr @dp, i64 0, i64 %106
  store i32 %104, ptr %107, align 4, !tbaa !5
  br label %108

108:                                              ; preds = %89, %84
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #7
  %109 = load i32, ptr %6, align 4, !tbaa !5
  %110 = sext i32 %109 to i64
  %111 = getelementptr inbounds [100100 x i32], ptr @dp, i64 0, i64 %110
  %112 = load i32, ptr %111, align 4, !tbaa !5
  %113 = load i32, ptr @n, align 4, !tbaa !5
  %114 = add nsw i32 %112, %113
  %115 = load i32, ptr %6, align 4, !tbaa !5
  %116 = sub nsw i32 %114, %115
  %117 = sub nsw i32 %116, 1
  store i32 %117, ptr %14, align 4, !tbaa !5
  %118 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) @ans, ptr noundef nonnull align 4 dereferenceable(4) %14)
  %119 = load i32, ptr %118, align 4, !tbaa !5
  store i32 %119, ptr @ans, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  br label %120

120:                                              ; preds = %108
  %121 = load i32, ptr %6, align 4, !tbaa !5
  %122 = add nsw i32 %121, 1
  store i32 %122, ptr %6, align 4, !tbaa !5
  br label %42, !llvm.loop !14

123:                                              ; preds = %46
  %124 = load i32, ptr @ans, align 4, !tbaa !5
  %125 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %124)
  %126 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %125, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  store i32 0, ptr %1, align 4
  br label %127

127:                                              ; preds = %123, %18
  %128 = load i32, ptr %1, align 4
  ret i32 %128
}

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

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

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #5 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #6

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr, ptr, ptr noundef nonnull align 4 dereferenceable(8)) #3

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS1_INS2_IT0_E4typeEE6__typeEEOS3_OS8_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #5 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #6

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { 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 #3 = { 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 #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #6 = { inlinehint mustprogress 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 #7 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 4}
!14 = distinct !{!14, !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<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"struct.std::pair" = type { i32, i32 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@n = external dso_local global i32, align 4
@x = external dso_local global i32, align 4
@y = external dso_local global i32, align 4
@v = external dso_local global %"class.std::vector", align 8
@dp = external dso_local local_unnamed_addr global [100100 x i32], align 16
@l = external dso_local local_unnamed_addr global [100100 x i32], align 16
@ans = external dso_local global i32, align 4
@inf = external dso_local local_unnamed_addr global i32, align 4
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca %"struct.std::pair", align 8
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca i32, align 4
  %8 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @n)
  %9 = load i32, ptr @n, align 4, !tbaa !5
  %10 = icmp eq i32 %9, 1
  br i1 %10, label %12, label %.preheader

.preheader:                                       ; preds = %0
  %11 = icmp sgt i32 %9, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

12:                                               ; preds = %0
  %13 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef 0)
  %14 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %65

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %15 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #8
  %16 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #8
  call void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %15, ptr %16)
  %17 = load i32, ptr @n, align 4, !tbaa !5
  %18 = icmp sgt i32 %17, 1
  br i1 %18, label %.lr.ph25, label %._crit_edge.._crit_edge26_crit_edge

._crit_edge.._crit_edge26_crit_edge:              ; preds = %._crit_edge
  %.pre = load i32, ptr @ans, align 4, !tbaa !5
  br label %._crit_edge26

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.02022 = phi i32 [ %21, %.lr.ph ], [ 0, %.preheader ]
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.2, ptr noundef nonnull @x, ptr noundef nonnull @y)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #8
  %20 = call i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) @x, ptr noundef nonnull align 4 dereferenceable(4) @y)
  store i64 %20, ptr %1, align 8
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) @v, ptr noundef nonnull align 4 dereferenceable(8) %1)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #8
  %21 = add nuw nsw i32 %.02022, 1
  %22 = load i32, ptr @n, align 4, !tbaa !5
  %23 = icmp slt i32 %21, %22
  br i1 %23, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge26:                                    ; preds = %54, %._crit_edge.._crit_edge26_crit_edge
  %24 = phi i32 [ %.pre, %._crit_edge.._crit_edge26_crit_edge ], [ %61, %54 ]
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %24)
  %26 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %25, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %65

.lr.ph25:                                         ; preds = %._crit_edge, %54
  %indvars.iv = phi i64 [ %indvars.iv.next, %54 ], [ 1, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #8
  %27 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #8
  %28 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #8
  %29 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %indvars.iv) #8
  %30 = load i32, ptr %29, align 4, !tbaa !11
  %31 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @v, i64 noundef %indvars.iv) #8
  %32 = getelementptr inbounds i8, ptr %31, i64 4
  %33 = load i32, ptr %32, align 4, !tbaa !13
  %34 = sub nsw i32 %30, %33
  store i32 %34, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #8
  %35 = load i32, ptr @inf, align 4, !tbaa !5
  %36 = sub nsw i32 0, %35
  store i32 %36, ptr %5, align 4, !tbaa !5
  %37 = call i64 @_ZSt9make_pairIiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS1_INS2_IT0_E4typeEE6__typeEEOS3_OS8_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  store i64 %37, ptr %3, align 8
  %38 = call ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr %27, ptr %28, ptr noundef nonnull align 4 dereferenceable(8) %3)
  store ptr %38, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #8
  %39 = call ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) @v) #8
  store ptr %39, ptr %6, align 8
  %40 = call noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %6) #8
  %41 = trunc i64 %40 to i32
  %42 = getelementptr inbounds [100100 x i32], ptr @l, i64 0, i64 %indvars.iv
  store i32 %41, ptr %42, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #8
  %43 = icmp eq i32 %41, 0
  br i1 %43, label %44, label %46

44:                                               ; preds = %.lr.ph25
  %45 = trunc nuw nsw i64 %indvars.iv to i32
  br label %54

46:                                               ; preds = %.lr.ph25
  %47 = shl i64 %40, 32
  %sext = add i64 %47, -4294967296
  %48 = ashr exact i64 %sext, 32
  %49 = getelementptr inbounds [100100 x i32], ptr @dp, i64 0, i64 %48
  %50 = load i32, ptr %49, align 4, !tbaa !5
  %51 = trunc nuw nsw i64 %indvars.iv to i32
  %52 = sub i32 %51, %41
  %53 = add nsw i32 %52, %50
  br label %54

54:                                               ; preds = %46, %44
  %.pre-phi = phi i32 [ %51, %46 ], [ %45, %44 ]
  %.sink = phi i32 [ %53, %46 ], [ %45, %44 ]
  %55 = getelementptr inbounds [100100 x i32], ptr @dp, i64 0, i64 %indvars.iv
  store i32 %.sink, ptr %55, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #8
  %56 = load i32, ptr @n, align 4, !tbaa !5
  %57 = xor i32 %.pre-phi, -1
  %58 = add i32 %.sink, %57
  %59 = add i32 %58, %56
  store i32 %59, ptr %7, align 4, !tbaa !5
  %60 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) @ans, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %61 = load i32, ptr %60, align 4, !tbaa !5
  store i32 %61, ptr @ans, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #8
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %62 = load i32, ptr @n, align 4, !tbaa !5
  %63 = sext i32 %62 to i64
  %64 = icmp slt i64 %indvars.iv.next, %63
  br i1 %64, label %.lr.ph25, label %._crit_edge26, !llvm.loop !14

65:                                               ; preds = %._crit_edge26, %12
  ret i32 0
}

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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #5

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIRiS0_ESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #5

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #6 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #6 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN9__gnu_cxxmiIPSt4pairIiiESt6vectorIS2_SaIS2_EEEENS_17__normal_iteratorIT_T0_E15difference_typeERKSA_SD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #7

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt11lower_boundIN9__gnu_cxx17__normal_iteratorIPSt4pairIiiESt6vectorIS3_SaIS3_EEEES3_ET_S9_S9_RKT0_(ptr, ptr, ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZSt9make_pairIiiESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS1_INS2_IT0_E4typeEE6__typeEEOS3_OS8_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #6 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #7

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { "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 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 = { 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 #5 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #6 = { 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 #7 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #8 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 4}
!14 = distinct !{!14, !10}


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