; LLVM IR from Hunterdii/GeeksforGeeks-POTD :: March 2024 GFG SOLUTION (March-11)

; 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<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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.2" = type { i8 }
%"class.std::allocator" = type { i8 }
%class.Solution = type { i8 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 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 i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::vector.0", align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::allocator.2", align 1
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca %"class.std::allocator", align 1
  %12 = alloca %"class.std::vector", align 8
  %13 = alloca %"class.std::vector.0", align 8
  %14 = alloca i32, align 4
  %15 = alloca %"class.std::allocator.2", align 1
  %16 = alloca %"class.std::allocator", align 1
  %17 = alloca i32, align 4
  %18 = alloca i32, align 4
  %19 = alloca i32, align 4
  %20 = alloca i32, align 4
  %21 = alloca i32, align 4
  %22 = alloca %class.Solution, align 1
  store i32 0, ptr %1, align 4
  %23 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %24 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %25 = getelementptr i8, ptr %24, i64 -24
  %26 = load i64, ptr %25, align 8
  %27 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %26
  %28 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %27, ptr noundef null)
  %29 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %30 = getelementptr i8, ptr %29, i64 -24
  %31 = load i64, ptr %30, align 8
  %32 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %31
  %33 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %32, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  br label %35

35:                                               ; preds = %143, %0
  %36 = load i32, ptr %2, align 4, !tbaa !8
  %37 = add nsw i32 %36, -1
  store i32 %37, ptr %2, align 4, !tbaa !8
  %38 = icmp ne i32 %36, 0
  br i1 %38, label %39, label %151

39:                                               ; preds = %35
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  %40 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %41 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %40, ptr noundef nonnull align 4 dereferenceable(4) %4)
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #6
  %42 = load i32, ptr %3, align 4, !tbaa !8
  %43 = sext i32 %42 to i64
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #6
  %44 = load i32, ptr %3, align 4, !tbaa !8
  %45 = sext i32 %44 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 %45, ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %46 unwind label %59

46:                                               ; preds = %39
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #6
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS1_RKS2_(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %43, ptr noundef nonnull align 8 dereferenceable(24) %6, ptr noundef nonnull align 1 dereferenceable(1) %11)
          to label %47 unwind label %63

47:                                               ; preds = %46
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  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.end.p0(i64 24, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr %12) #6
  %48 = load i32, ptr %3, align 4, !tbaa !8
  %49 = sext i32 %48 to i64
  call void @llvm.lifetime.start.p0(i64 24, ptr %13) #6
  %50 = load i32, ptr %3, align 4, !tbaa !8
  %51 = sext i32 %50 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #6
  store i32 -1, ptr %14, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr %15) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %15) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %13, i64 noundef %51, ptr noundef nonnull align 4 dereferenceable(4) %14, ptr noundef nonnull align 1 dereferenceable(1) %15)
          to label %52 unwind label %68

52:                                               ; preds = %47
  call void @llvm.lifetime.start.p0(i64 1, ptr %16) #6
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #6
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS1_RKS2_(ptr noundef nonnull align 8 dereferenceable(24) %12, i64 noundef %49, ptr noundef nonnull align 8 dereferenceable(24) %13, ptr noundef nonnull align 1 dereferenceable(1) %16)
          to label %53 unwind label %72

53:                                               ; preds = %52
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %15) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %13) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #6
  store i32 0, ptr %17, align 4, !tbaa !8
  br label %54

54:                                               ; preds = %100, %53
  %55 = load i32, ptr %17, align 4, !tbaa !8
  %56 = load i32, ptr %3, align 4, !tbaa !8
  %57 = icmp slt i32 %55, %56
  br i1 %57, label %77, label %58

58:                                               ; preds = %54
  store i32 4, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #6
  br label %103

59:                                               ; preds = %39
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %9, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %10, align 4
  br label %67

63:                                               ; preds = %46
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %9, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %10, align 4
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #6
  br label %67

67:                                               ; preds = %63, %59
  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.end.p0(i64 24, ptr %6) #6
  br label %150

68:                                               ; preds = %47
  %69 = landingpad { ptr, i32 }
          cleanup
  %70 = extractvalue { ptr, i32 } %69, 0
  store ptr %70, ptr %9, align 8
  %71 = extractvalue { ptr, i32 } %69, 1
  store i32 %71, ptr %10, align 4
  br label %76

72:                                               ; preds = %52
  %73 = landingpad { ptr, i32 }
          cleanup
  %74 = extractvalue { ptr, i32 } %73, 0
  store ptr %74, ptr %9, align 8
  %75 = extractvalue { ptr, i32 } %73, 1
  store i32 %75, ptr %10, align 4
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %13) #6
  br label %76

76:                                               ; preds = %72, %68
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %15) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %13) #6
  br label %149

77:                                               ; preds = %54
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #6
  store i32 0, ptr %19, align 4, !tbaa !8
  br label %78

78:                                               ; preds = %92, %77
  %79 = load i32, ptr %19, align 4, !tbaa !8
  %80 = load i32, ptr %3, align 4, !tbaa !8
  %81 = icmp slt i32 %79, %80
  br i1 %81, label %83, label %82

82:                                               ; preds = %78
  store i32 7, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #6
  br label %99

83:                                               ; preds = %78
  %84 = load i32, ptr %17, align 4, !tbaa !8
  %85 = sext i32 %84 to i64
  %86 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %85) #6
  %87 = load i32, ptr %19, align 4, !tbaa !8
  %88 = sext i32 %87 to i64
  %89 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %86, i64 noundef %88) #6
  %90 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %89)
          to label %91 unwind label %95

91:                                               ; preds = %83
  br label %92

92:                                               ; preds = %91
  %93 = load i32, ptr %19, align 4, !tbaa !8
  %94 = add nsw i32 %93, 1
  store i32 %94, ptr %19, align 4, !tbaa !8
  br label %78, !llvm.loop !11

95:                                               ; preds = %83
  %96 = landingpad { ptr, i32 }
          cleanup
  %97 = extractvalue { ptr, i32 } %96, 0
  store ptr %97, ptr %9, align 8
  %98 = extractvalue { ptr, i32 } %96, 1
  store i32 %98, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #6
  br label %148

99:                                               ; preds = %82
  br label %100

100:                                              ; preds = %99
  %101 = load i32, ptr %17, align 4, !tbaa !8
  %102 = add nsw i32 %101, 1
  store i32 %102, ptr %17, align 4, !tbaa !8
  br label %54, !llvm.loop !13

103:                                              ; preds = %58
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #6
  store i32 0, ptr %20, align 4, !tbaa !8
  br label %104

104:                                              ; preds = %132, %103
  %105 = load i32, ptr %20, align 4, !tbaa !8
  %106 = load i32, ptr %3, align 4, !tbaa !8
  %107 = icmp slt i32 %105, %106
  br i1 %107, label %109, label %108

108:                                              ; preds = %104
  store i32 10, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #6
  br label %135

109:                                              ; preds = %104
  call void @llvm.lifetime.start.p0(i64 4, ptr %21) #6
  store i32 0, ptr %21, align 4, !tbaa !8
  br label %110

110:                                              ; preds = %124, %109
  %111 = load i32, ptr %21, align 4, !tbaa !8
  %112 = load i32, ptr %3, align 4, !tbaa !8
  %113 = icmp slt i32 %111, %112
  br i1 %113, label %115, label %114

114:                                              ; preds = %110
  store i32 13, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %21) #6
  br label %131

115:                                              ; preds = %110
  %116 = load i32, ptr %20, align 4, !tbaa !8
  %117 = sext i32 %116 to i64
  %118 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %12, i64 noundef %117) #6
  %119 = load i32, ptr %21, align 4, !tbaa !8
  %120 = sext i32 %119 to i64
  %121 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %118, i64 noundef %120) #6
  %122 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %121)
          to label %123 unwind label %127

123:                                              ; preds = %115
  br label %124

124:                                              ; preds = %123
  %125 = load i32, ptr %21, align 4, !tbaa !8
  %126 = add nsw i32 %125, 1
  store i32 %126, ptr %21, align 4, !tbaa !8
  br label %110, !llvm.loop !14

127:                                              ; preds = %115
  %128 = landingpad { ptr, i32 }
          cleanup
  %129 = extractvalue { ptr, i32 } %128, 0
  store ptr %129, ptr %9, align 8
  %130 = extractvalue { ptr, i32 } %128, 1
  store i32 %130, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %21) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #6
  br label %148

131:                                              ; preds = %114
  br label %132

132:                                              ; preds = %131
  %133 = load i32, ptr %20, align 4, !tbaa !8
  %134 = add nsw i32 %133, 1
  store i32 %134, ptr %20, align 4, !tbaa !8
  br label %104, !llvm.loop !15

135:                                              ; preds = %108
  call void @llvm.lifetime.start.p0(i64 1, ptr %22) #6
  %136 = load i32, ptr %3, align 4, !tbaa !8
  %137 = load i32, ptr %4, align 4, !tbaa !8
  %138 = invoke noundef i32 @_ZN8Solution10countPairsERSt6vectorIS0_IiSaIiEESaIS2_EES5_ii(ptr noundef nonnull align 1 dereferenceable(1) %22, ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 8 dereferenceable(24) %12, i32 noundef %136, i32 noundef %137)
          to label %139 unwind label %144

139:                                              ; preds = %135
  %140 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %138)
          to label %141 unwind label %144

141:                                              ; preds = %139
  %142 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %140, ptr noundef @.str)
          to label %143 unwind label %144

143:                                              ; preds = %141
  call void @llvm.lifetime.end.p0(i64 1, ptr %22) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %12) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %12) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_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 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  br label %35, !llvm.loop !16

144:                                              ; preds = %141, %139, %135
  %145 = landingpad { ptr, i32 }
          cleanup
  %146 = extractvalue { ptr, i32 } %145, 0
  store ptr %146, ptr %9, align 8
  %147 = extractvalue { ptr, i32 } %145, 1
  store i32 %147, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %22) #6
  br label %148

148:                                              ; preds = %144, %127, %95
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %12) #6
  br label %149

149:                                              ; preds = %148, %76
  call void @llvm.lifetime.end.p0(i64 24, ptr %12) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  br label %150

150:                                              ; preds = %149, %67
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %153

151:                                              ; preds = %35
  store i32 0, ptr %1, align 4
  store i32 1, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  %152 = load i32, ptr %1, align 4
  ret i32 %152

153:                                              ; preds = %150
  %154 = load ptr, ptr %9, align 8
  %155 = load i32, ptr %10, align 4
  %156 = insertvalue { ptr, i32 } poison, ptr %154, 0
  %157 = insertvalue { ptr, i32 } %156, i32 %155, 1
  resume { ptr, i32 } %157
}

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

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

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: 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 @_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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS1_RKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

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

; 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 noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 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_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #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 noundef i32 @_ZN8Solution10countPairsERSt6vectorIS0_IiSaIiEESaIS2_EES5_ii(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i32 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(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 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}


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

%"class.std::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<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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.2" = type { i8 }
%"class.std::allocator" = type { i8 }
%class.Solution = type { i8 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 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 i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::vector.0", align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::allocator.2", align 1
  %8 = alloca %"class.std::allocator", align 1
  %9 = alloca %"class.std::vector", align 8
  %10 = alloca %"class.std::vector.0", align 8
  %11 = alloca i32, align 4
  %12 = alloca %"class.std::allocator.2", align 1
  %13 = alloca %"class.std::allocator", align 1
  %14 = alloca %class.Solution, align 1
  %15 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %16 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %17 = getelementptr i8, ptr %16, i64 -24
  %18 = load i64, ptr %17, align 8
  %19 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %18
  %20 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %19, ptr noundef null)
  %21 = load ptr, ptr @_ZSt4cout, align 8, !tbaa !5
  %22 = getelementptr i8, ptr %21, i64 -24
  %23 = load i64, ptr %22, align 8
  %24 = getelementptr inbounds i8, ptr @_ZSt4cout, i64 %23
  %25 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %24, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  %26 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %27 = load i32, ptr %1, align 4, !tbaa !8
  %28 = add nsw i32 %27, -1
  store i32 %28, ptr %1, align 4, !tbaa !8
  %.not40 = icmp eq i32 %27, 0
  br i1 %.not40, label %._crit_edge43, label %.lr.ph42

.lr.ph42:                                         ; preds = %0, %83
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #6
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %30 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %29, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #6
  %31 = load i32, ptr %2, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #6
  %32 = sext i32 %31 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #6
  store i32 -1, ptr %6, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %32, ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %33 unwind label %44

33:                                               ; preds = %.lr.ph42
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %8) #6
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS1_RKS2_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %32, ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %34 unwind label %46

34:                                               ; preds = %33
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #6
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %9) #6
  %35 = load i32, ptr %2, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %10) #6
  %36 = sext i32 %35 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %11) #6
  store i32 -1, ptr %11, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %12) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %10, i64 noundef %36, ptr noundef nonnull align 4 dereferenceable(4) %11, ptr noundef nonnull align 1 dereferenceable(1) %12)
          to label %37 unwind label %49

37:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %13) #6
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS1_RKS2_(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef %36, ptr noundef nonnull align 8 dereferenceable(24) %10, ptr noundef nonnull align 1 dereferenceable(1) %13)
          to label %38 unwind label %51

38:                                               ; preds = %37
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %13) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %10) #6
  %39 = load i32, ptr %2, align 4, !tbaa !8
  %40 = icmp sgt i32 %39, 0
  br i1 %40, label %.preheader30, label %._crit_edge39

.preheader31:                                     ; preds = %._crit_edge
  %41 = icmp sgt i32 %54, 0
  br i1 %41, label %.preheader, label %._crit_edge39

.preheader30:                                     ; preds = %38, %._crit_edge
  %42 = phi i32 [ %54, %._crit_edge ], [ %39, %38 ]
  %indvars.iv48 = phi i64 [ %indvars.iv.next49, %._crit_edge ], [ 0, %38 ]
  %43 = icmp sgt i32 %42, 0
  br i1 %43, label %.lr.ph, label %.preheader30.._crit_edge_crit_edge

.preheader30.._crit_edge_crit_edge:               ; preds = %.preheader30
  %.pre = sext i32 %42 to i64
  br label %._crit_edge

44:                                               ; preds = %.lr.ph42
  %45 = landingpad { ptr, i32 }
          cleanup
  br label %48

46:                                               ; preds = %33
  %47 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  br label %48

48:                                               ; preds = %46, %44
  %.pn = phi { ptr, i32 } [ %47, %46 ], [ %45, %44 ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #6
  br label %90

49:                                               ; preds = %34
  %50 = landingpad { ptr, i32 }
          cleanup
  br label %53

51:                                               ; preds = %37
  %52 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %13) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #6
  br label %53

53:                                               ; preds = %51, %49
  %.pn24 = phi { ptr, i32 } [ %52, %51 ], [ %50, %49 ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %11) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %10) #6
  br label %89

._crit_edge:                                      ; preds = %59, %.preheader30.._crit_edge_crit_edge
  %.pre-phi = phi i64 [ %.pre, %.preheader30.._crit_edge_crit_edge ], [ %61, %59 ]
  %54 = phi i32 [ %42, %.preheader30.._crit_edge_crit_edge ], [ %60, %59 ]
  %indvars.iv.next49 = add nuw nsw i64 %indvars.iv48, 1
  %55 = icmp slt i64 %indvars.iv.next49, %.pre-phi
  br i1 %55, label %.preheader30, label %.preheader31, !llvm.loop !11

.lr.ph:                                           ; preds = %.preheader30, %59
  %indvars.iv = phi i64 [ %indvars.iv.next, %59 ], [ 0, %.preheader30 ]
  %56 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv48) #6
  %57 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %56, i64 noundef %indvars.iv) #6
  %58 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %57)
          to label %59 unwind label %63

59:                                               ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %60 = load i32, ptr %2, align 4, !tbaa !8
  %61 = sext i32 %60 to i64
  %62 = icmp slt i64 %indvars.iv.next, %61
  br i1 %62, label %.lr.ph, label %._crit_edge, !llvm.loop !14

63:                                               ; preds = %.lr.ph
  %64 = landingpad { ptr, i32 }
          cleanup
  br label %88

.preheader:                                       ; preds = %.preheader31, %._crit_edge37
  %65 = phi i32 [ %70, %._crit_edge37 ], [ %54, %.preheader31 ]
  %indvars.iv54 = phi i64 [ %indvars.iv.next55, %._crit_edge37 ], [ 0, %.preheader31 ]
  %66 = icmp sgt i32 %65, 0
  br i1 %66, label %.lr.ph36, label %.preheader.._crit_edge37_crit_edge

.preheader.._crit_edge37_crit_edge:               ; preds = %.preheader
  %.pre57 = sext i32 %65 to i64
  br label %._crit_edge37

._crit_edge39:                                    ; preds = %._crit_edge37, %38, %.preheader31
  %.lcssa = phi i32 [ %54, %.preheader31 ], [ %39, %38 ], [ %70, %._crit_edge37 ]
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %14) #6
  %67 = load i32, ptr %3, align 4, !tbaa !8
  %68 = call noundef i32 @_ZN8Solution10countPairsERSt6vectorIS0_IiSaIiEESaIS2_EES5_ii(ptr noundef nonnull align 1 dereferenceable(1) %14, ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(24) %9, i32 noundef %.lcssa, i32 noundef %67)
  %69 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %68)
          to label %81 unwind label %86

._crit_edge37:                                    ; preds = %75, %.preheader.._crit_edge37_crit_edge
  %.pre-phi58 = phi i64 [ %.pre57, %.preheader.._crit_edge37_crit_edge ], [ %77, %75 ]
  %70 = phi i32 [ %65, %.preheader.._crit_edge37_crit_edge ], [ %76, %75 ]
  %indvars.iv.next55 = add nuw nsw i64 %indvars.iv54, 1
  %71 = icmp slt i64 %indvars.iv.next55, %.pre-phi58
  br i1 %71, label %.preheader, label %._crit_edge39, !llvm.loop !15

.lr.ph36:                                         ; preds = %.preheader, %75
  %indvars.iv51 = phi i64 [ %indvars.iv.next52, %75 ], [ 0, %.preheader ]
  %72 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef %indvars.iv54) #6
  %73 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %72, i64 noundef %indvars.iv51) #6
  %74 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %73)
          to label %75 unwind label %79

75:                                               ; preds = %.lr.ph36
  %indvars.iv.next52 = add nuw nsw i64 %indvars.iv51, 1
  %76 = load i32, ptr %2, align 4, !tbaa !8
  %77 = sext i32 %76 to i64
  %78 = icmp slt i64 %indvars.iv.next52, %77
  br i1 %78, label %.lr.ph36, label %._crit_edge37, !llvm.loop !16

79:                                               ; preds = %.lr.ph36
  %80 = landingpad { ptr, i32 }
          cleanup
  br label %88

81:                                               ; preds = %._crit_edge39
  %82 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %69, ptr noundef nonnull @.str)
          to label %83 unwind label %86

83:                                               ; preds = %81
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %14) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %9) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_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 4, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  %84 = load i32, ptr %1, align 4, !tbaa !8
  %85 = add nsw i32 %84, -1
  store i32 %85, ptr %1, align 4, !tbaa !8
  %.not = icmp eq i32 %84, 0
  br i1 %.not, label %._crit_edge43, label %.lr.ph42, !llvm.loop !17

86:                                               ; preds = %81, %._crit_edge39
  %87 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %14) #6
  br label %88

88:                                               ; preds = %86, %79, %63
  %.pn26 = phi { ptr, i32 } [ %64, %63 ], [ %80, %79 ], [ %87, %86 ]
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #6
  br label %89

89:                                               ; preds = %88, %53
  %.pn26.pn = phi { ptr, i32 } [ %.pn26, %88 ], [ %.pn24, %53 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %9) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  br label %90

90:                                               ; preds = %89, %48
  %.pn26.pn.pn = phi { ptr, i32 } [ %.pn26.pn, %89 ], [ %.pn, %48 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn26.pn.pn

._crit_edge43:                                    ; preds = %83, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0
}

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

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

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 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 @_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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS1_RKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; 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 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 noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 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_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) 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 noundef i32 @_ZN8Solution10countPairsERSt6vectorIS0_IiSaIiEESaIS2_EES5_ii(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i32 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(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 = distinct !{!11, !12, !13}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!"llvm.loop.unswitch.partial.disable"}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12, !13}
!16 = distinct !{!16, !12}
!17 = distinct !{!17, !12}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,SCCPPass,SROAPass,SimpleLoopUnswitchPass,SimplifyCFGPass,TailCallElimPass