; LLVM IR from ahr9n/psolving-paradigms :: 1.brute-force/1.1.iterative-brute-force (CodeForces 1364C - Ehab and Prefix MEXs)

; 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::basic_istream" = type { ptr, i64, %"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 }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }

@n = external dso_local global i32, align 4
@c = external dso_local global i32, align 4
@ok = external dso_local global [1000001 x i8], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [3 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 %"class.std::vector", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::allocator", align 1
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %12 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %13 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %14 = getelementptr i8, ptr %13, i64 -24
  %15 = load i64, ptr %14, align 8
  %16 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %15
  %17 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %16, ptr noundef null)
  %18 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  call void @llvm.lifetime.start.p0(i64 24, ptr %2) #6
  %19 = load i32, ptr @n, align 4, !tbaa !8
  %20 = sext i32 %19 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %20, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %21 unwind label %30

21:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #6
  %22 = load i32, ptr @n, align 4, !tbaa !8
  %23 = sext i32 %22 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  store i32 -1, ptr %7, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %23, ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %24 unwind label %34

24:                                               ; preds = %21
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  store i32 0, ptr %9, align 4, !tbaa !8
  br label %25

25:                                               ; preds = %79, %24
  %26 = load i32, ptr %9, align 4, !tbaa !8
  %27 = load i32, ptr @n, align 4, !tbaa !8
  %28 = icmp slt i32 %26, %27
  br i1 %28, label %38, label %29

29:                                               ; preds = %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %82

30:                                               ; preds = %0
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %4, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %5, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #6
  br label %155

34:                                               ; preds = %21
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %4, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %5, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  br label %154

38:                                               ; preds = %25
  %39 = load i32, ptr %9, align 4, !tbaa !8
  %40 = sext i32 %39 to i64
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %40) #6
  %42 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %41)
          to label %43 unwind label %73

43:                                               ; preds = %38
  %44 = load i32, ptr %9, align 4, !tbaa !8
  %45 = icmp ne i32 %44, 0
  br i1 %45, label %46, label %78

46:                                               ; preds = %43
  %47 = load i32, ptr %9, align 4, !tbaa !8
  %48 = sext i32 %47 to i64
  %49 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %48) #6
  %50 = load i32, ptr %49, align 4, !tbaa !8
  %51 = load i32, ptr %9, align 4, !tbaa !8
  %52 = sub nsw i32 %51, 1
  %53 = sext i32 %52 to i64
  %54 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %53) #6
  %55 = load i32, ptr %54, align 4, !tbaa !8
  %56 = icmp ne i32 %50, %55
  br i1 %56, label %57, label %77

57:                                               ; preds = %46
  %58 = load i32, ptr %9, align 4, !tbaa !8
  %59 = sub nsw i32 %58, 1
  %60 = sext i32 %59 to i64
  %61 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %60) #6
  %62 = load i32, ptr %61, align 4, !tbaa !8
  %63 = load i32, ptr %9, align 4, !tbaa !8
  %64 = sext i32 %63 to i64
  %65 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %64) #6
  store i32 %62, ptr %65, align 4, !tbaa !8
  %66 = load i32, ptr %9, align 4, !tbaa !8
  %67 = sub nsw i32 %66, 1
  %68 = sext i32 %67 to i64
  %69 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %68) #6
  %70 = load i32, ptr %69, align 4, !tbaa !8
  %71 = sext i32 %70 to i64
  %72 = getelementptr inbounds [1000001 x i8], ptr @ok, i64 0, i64 %71
  store i8 1, ptr %72, align 1, !tbaa !11
  br label %77

73:                                               ; preds = %38
  %74 = landingpad { ptr, i32 }
          cleanup
  %75 = extractvalue { ptr, i32 } %74, 0
  store ptr %75, ptr %4, align 8
  %76 = extractvalue { ptr, i32 } %74, 1
  store i32 %76, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %153

77:                                               ; preds = %57, %46
  br label %78

78:                                               ; preds = %77, %43
  br label %79

79:                                               ; preds = %78
  %80 = load i32, ptr %9, align 4, !tbaa !8
  %81 = add nsw i32 %80, 1
  store i32 %81, ptr %9, align 4, !tbaa !8
  br label %25, !llvm.loop !13

82:                                               ; preds = %29
  %83 = load i32, ptr @n, align 4, !tbaa !8
  %84 = sub nsw i32 %83, 1
  %85 = sext i32 %84 to i64
  %86 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %85) #6
  %87 = load i32, ptr %86, align 4, !tbaa !8
  %88 = sext i32 %87 to i64
  %89 = getelementptr inbounds [1000001 x i8], ptr @ok, i64 0, i64 %88
  store i8 1, ptr %89, align 1, !tbaa !11
  store i32 0, ptr @c, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  store i32 0, ptr %10, align 4, !tbaa !8
  br label %90

90:                                               ; preds = %121, %82
  %91 = load i32, ptr %10, align 4, !tbaa !8
  %92 = load i32, ptr @n, align 4, !tbaa !8
  %93 = icmp slt i32 %91, %92
  br i1 %93, label %95, label %94

94:                                               ; preds = %90
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %124

95:                                               ; preds = %90
  %96 = load i32, ptr %10, align 4, !tbaa !8
  %97 = sext i32 %96 to i64
  %98 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %97) #6
  %99 = load i32, ptr %98, align 4, !tbaa !8
  %100 = icmp eq i32 %99, -1
  br i1 %100, label %101, label %120

101:                                              ; preds = %95
  br label %102

102:                                              ; preds = %108, %101
  %103 = load i32, ptr @c, align 4, !tbaa !8
  %104 = sext i32 %103 to i64
  %105 = getelementptr inbounds [1000001 x i8], ptr @ok, i64 0, i64 %104
  %106 = load i8, ptr %105, align 1, !tbaa !11, !range !15, !noundef !16
  %107 = trunc i8 %106 to i1
  br i1 %107, label %108, label %111

108:                                              ; preds = %102
  %109 = load i32, ptr @c, align 4, !tbaa !8
  %110 = add nsw i32 %109, 1
  store i32 %110, ptr @c, align 4, !tbaa !8
  br label %102, !llvm.loop !17

111:                                              ; preds = %102
  %112 = load i32, ptr @c, align 4, !tbaa !8
  %113 = load i32, ptr %10, align 4, !tbaa !8
  %114 = sext i32 %113 to i64
  %115 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %114) #6
  store i32 %112, ptr %115, align 4, !tbaa !8
  %116 = load i32, ptr @c, align 4, !tbaa !8
  %117 = add nsw i32 %116, 1
  store i32 %117, ptr @c, align 4, !tbaa !8
  %118 = sext i32 %116 to i64
  %119 = getelementptr inbounds [1000001 x i8], ptr @ok, i64 0, i64 %118
  store i8 1, ptr %119, align 1, !tbaa !11
  br label %120

120:                                              ; preds = %111, %95
  br label %121

121:                                              ; preds = %120
  %122 = load i32, ptr %10, align 4, !tbaa !8
  %123 = add nsw i32 %122, 1
  store i32 %123, ptr %10, align 4, !tbaa !8
  br label %90, !llvm.loop !18

124:                                              ; preds = %94
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !8
  br label %125

125:                                              ; preds = %146, %124
  %126 = load i32, ptr %11, align 4, !tbaa !8
  %127 = load i32, ptr @n, align 4, !tbaa !8
  %128 = icmp slt i32 %126, %127
  br i1 %128, label %130, label %129

129:                                              ; preds = %125
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %151

130:                                              ; preds = %125
  br label %131

131:                                              ; preds = %130
  %132 = load i32, ptr %11, align 4, !tbaa !8
  %133 = add nsw i32 %132, 1
  store i32 %133, ptr %11, align 4, !tbaa !8
  %134 = sext i32 %132 to i64
  %135 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %134) #6
  %136 = load i32, ptr %135, align 4, !tbaa !8
  %137 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %136)
          to label %138 unwind label %147

138:                                              ; preds = %131
  %139 = load i32, ptr %11, align 4, !tbaa !8
  %140 = load i32, ptr @n, align 4, !tbaa !8
  %141 = icmp eq i32 %139, %140
  %142 = zext i1 %141 to i64
  %143 = getelementptr inbounds [3 x i8], ptr @.str, i64 0, i64 %142
  %144 = load i8, ptr %143, align 1, !tbaa !19
  %145 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %137, i8 noundef signext %144)
          to label %146 unwind label %147

146:                                              ; preds = %138
  br label %125, !llvm.loop !20

147:                                              ; preds = %138, %131
  %148 = landingpad { ptr, i32 }
          cleanup
  %149 = extractvalue { ptr, i32 } %148, 0
  store ptr %149, ptr %4, align 8
  %150 = extractvalue { ptr, i32 } %148, 1
  store i32 %150, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %153

151:                                              ; preds = %129
  store i32 0, ptr %1, align 4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %2) #6
  %152 = load i32, ptr %1, align 4
  ret i32 %152

153:                                              ; preds = %147, %73
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  br label %154

154:                                              ; preds = %153, %34
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  br label %155

155:                                              ; preds = %154, %30
  call void @llvm.lifetime.end.p0(i64 24, ptr %2) #6
  br label %156

156:                                              ; preds = %155
  %157 = load ptr, ptr %4, align 8
  %158 = load i32, ptr %5, align 4
  %159 = insertvalue { ptr, i32 } poison, ptr %157, 0
  %160 = insertvalue { ptr, i32 } %159, i32 %158, 1
  resume { ptr, i32 } %160
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(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) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #5

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { 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 #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !10, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{i8 0, i8 2}
!16 = !{}
!17 = distinct !{!17, !14}
!18 = distinct !{!18, !14}
!19 = !{!10, !10, i64 0}
!20 = distinct !{!20, !14}


; 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::basic_istream" = type { ptr, i64, %"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 }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }

@n = external dso_local global i32, align 4
@c = external dso_local local_unnamed_addr global i32, align 4
@ok = external dso_local local_unnamed_addr global [1000001 x i8], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [3 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 %"class.std::vector", align 8
  %2 = alloca %"class.std::allocator", align 1
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::allocator", align 1
  %6 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %7 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %8 = getelementptr i8, ptr %7, i64 -24
  %9 = load i64, ptr %8, align 8
  %10 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %9
  %11 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %10, ptr noundef null)
  %12 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %1) #6
  %13 = load i32, ptr @n, align 4, !tbaa !8
  %14 = sext i32 %13 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %14, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %15 unwind label %32

15:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  %16 = load i32, ptr @n, align 4, !tbaa !8
  %17 = sext i32 %16 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #6
  store i32 -1, ptr %4, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %17, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %18 unwind label %34

18:                                               ; preds = %15
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #6
  %19 = load i32, ptr @n, align 4, !tbaa !8
  %20 = icmp sgt i32 %19, 0
  br i1 %20, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %18
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef 0) #6
  %22 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %21)
          to label %._crit_edge54 unwind label %.loopexit.split-lp

._crit_edge54:                                    ; preds = %.lr.ph.preheader
  %.pre = load i32, ptr @n, align 4, !tbaa !8
  %23 = icmp sgt i32 %.pre, 1
  br i1 %23, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %52, %._crit_edge54, %18
  %.lcssa30 = phi i32 [ %19, %18 ], [ %.pre, %._crit_edge54 ], [ %53, %52 ]
  %24 = add nsw i32 %.lcssa30, -1
  %25 = sext i32 %24 to i64
  %26 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %25) #6
  %27 = load i32, ptr %26, align 4, !tbaa !8
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [1000001 x i8], ptr @ok, i64 0, i64 %28
  store i8 1, ptr %29, align 1, !tbaa !11
  store i32 0, ptr @c, align 4, !tbaa !8
  %30 = load i32, ptr @n, align 4, !tbaa !8
  %31 = icmp sgt i32 %30, 0
  br i1 %31, label %.lr.ph39, label %.preheader.preheader

32:                                               ; preds = %0
  %33 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #6
  br label %97

34:                                               ; preds = %15
  %35 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #6
  br label %96

.lr.ph:                                           ; preds = %._crit_edge54, %52
  %indvars.iv = phi i64 [ %indvars.iv.next, %52 ], [ 1, %._crit_edge54 ]
  %36 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #6
  %37 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %36)
          to label %38 unwind label %.loopexit

38:                                               ; preds = %.lr.ph
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #6
  %40 = load i32, ptr %39, align 4, !tbaa !8
  %41 = add nsw i64 %indvars.iv, -1
  %42 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %41) #6
  %43 = load i32, ptr %42, align 4, !tbaa !8
  %.not28 = icmp eq i32 %40, %43
  br i1 %.not28, label %52, label %44

44:                                               ; preds = %38
  %45 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %41) #6
  %46 = load i32, ptr %45, align 4, !tbaa !8
  %47 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv) #6
  store i32 %46, ptr %47, align 4, !tbaa !8
  %48 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %41) #6
  %49 = load i32, ptr %48, align 4, !tbaa !8
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds [1000001 x i8], ptr @ok, i64 0, i64 %50
  store i8 1, ptr %51, align 1, !tbaa !11
  br label %52

.loopexit:                                        ; preds = %.lr.ph
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %95

.loopexit.split-lp:                               ; preds = %.lr.ph.preheader
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %95

52:                                               ; preds = %44, %38
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %53 = load i32, ptr @n, align 4, !tbaa !8
  %54 = sext i32 %53 to i64
  %55 = icmp slt i64 %indvars.iv.next, %54
  br i1 %55, label %.lr.ph, label %._crit_edge, !llvm.loop !13

.lr.ph39:                                         ; preds = %._crit_edge, %73
  %indvars.iv47 = phi i64 [ %indvars.iv.next48, %73 ], [ 0, %._crit_edge ]
  %56 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv47) #6
  %57 = load i32, ptr %56, align 4, !tbaa !8
  %58 = icmp eq i32 %57, -1
  br i1 %58, label %.preheader29, label %73

.preheader29:                                     ; preds = %.lr.ph39
  %c.promoted = load i32, ptr @c, align 4, !tbaa !8
  %59 = sext i32 %c.promoted to i64
  %60 = getelementptr inbounds [1000001 x i8], ptr @ok, i64 0, i64 %59
  %61 = load i8, ptr %60, align 1, !tbaa !11, !range !16, !noundef !17
  %62 = trunc nuw i8 %61 to i1
  br i1 %62, label %.lr.ph33, label %67

.lr.ph33:                                         ; preds = %.preheader29, %.lr.ph33
  %indvars.iv44 = phi i64 [ %indvars.iv.next45, %.lr.ph33 ], [ %59, %.preheader29 ]
  %indvars.iv.next45 = add nsw i64 %indvars.iv44, 1
  %63 = getelementptr inbounds [1000001 x i8], ptr @ok, i64 0, i64 %indvars.iv.next45
  %64 = load i8, ptr %63, align 1, !tbaa !11, !range !16, !noundef !17
  %65 = trunc nuw i8 %64 to i1
  br i1 %65, label %.lr.ph33, label %._crit_edge34, !llvm.loop !18

._crit_edge34:                                    ; preds = %.lr.ph33
  %66 = trunc nsw i64 %indvars.iv.next45 to i32
  store i32 %66, ptr @c, align 4, !tbaa !8
  br label %67

67:                                               ; preds = %._crit_edge34, %.preheader29
  %.lcssa = phi i32 [ %66, %._crit_edge34 ], [ %c.promoted, %.preheader29 ]
  %68 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv47) #6
  store i32 %.lcssa, ptr %68, align 4, !tbaa !8
  %69 = load i32, ptr @c, align 4, !tbaa !8
  %70 = add nsw i32 %69, 1
  store i32 %70, ptr @c, align 4, !tbaa !8
  %71 = sext i32 %69 to i64
  %72 = getelementptr inbounds [1000001 x i8], ptr @ok, i64 0, i64 %71
  store i8 1, ptr %72, align 1, !tbaa !11
  br label %73

73:                                               ; preds = %.lr.ph39, %67
  %indvars.iv.next48 = add nuw nsw i64 %indvars.iv47, 1
  %74 = load i32, ptr @n, align 4, !tbaa !8
  %75 = sext i32 %74 to i64
  %76 = icmp slt i64 %indvars.iv.next48, %75
  br i1 %76, label %.lr.ph39, label %.preheader.preheader, !llvm.loop !19

.preheader.preheader:                             ; preds = %73, %._crit_edge
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %85
  %indvars.iv50 = phi i64 [ %indvars.iv.next51, %85 ], [ 0, %.preheader.preheader ]
  %77 = load i32, ptr @n, align 4, !tbaa !8
  %78 = sext i32 %77 to i64
  %79 = icmp slt i64 %indvars.iv50, %78
  br i1 %79, label %81, label %80

80:                                               ; preds = %.preheader
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #6
  ret i32 0

81:                                               ; preds = %.preheader
  %82 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %indvars.iv50) #6
  %83 = load i32, ptr %82, align 4, !tbaa !8
  %84 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %83)
          to label %85 unwind label %93

85:                                               ; preds = %81
  %indvars.iv.next51 = add nuw nsw i64 %indvars.iv50, 1
  %86 = load i32, ptr @n, align 4, !tbaa !8
  %87 = zext i32 %86 to i64
  %88 = icmp eq i64 %indvars.iv.next51, %87
  %89 = zext i1 %88 to i64
  %90 = getelementptr inbounds [3 x i8], ptr @.str, i64 0, i64 %89
  %91 = load i8, ptr %90, align 1, !tbaa !20
  %92 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %84, i8 noundef signext %91)
          to label %.preheader unwind label %93, !llvm.loop !21

93:                                               ; preds = %85, %81
  %94 = landingpad { ptr, i32 }
          cleanup
  br label %95

95:                                               ; preds = %.loopexit, %.loopexit.split-lp, %93
  %.pn = phi { ptr, i32 } [ %94, %93 ], [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %96

96:                                               ; preds = %95, %34
  %.pn.pn = phi { ptr, i32 } [ %.pn, %95 ], [ %35, %34 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  br label %97

97:                                               ; preds = %96, %32
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %96 ], [ %33, %32 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn.pn
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKS0_(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) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #5

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { 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 #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !10, i64 0}
!13 = distinct !{!13, !14, !15}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!"llvm.loop.peeled.count", i32 1}
!16 = !{i8 0, i8 2}
!17 = !{}
!18 = distinct !{!18, !14}
!19 = distinct !{!19, !14}
!20 = !{!10, !10, i64 0}
!21 = distinct !{!21, !14}


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