; LLVM IR from DionysiosB/CodeForces :: 1904B-CollectingGame (main)

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

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }
%"struct.std::pair" = type { i64, i64 }

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.std::vector.0", align 8
  %12 = alloca i64, align 8
  %13 = alloca %"class.std::allocator.2", align 1
  %14 = alloca i64, align 8
  %15 = alloca i64, align 8
  %16 = alloca i64, align 8
  %17 = alloca i64, align 8
  %18 = alloca %"class.std::vector.0", align 8
  %19 = alloca %"class.std::allocator.2", align 1
  %20 = alloca i64, align 8
  %21 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %22 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %23

23:                                               ; preds = %174, %0
  %24 = load i64, ptr %2, align 8, !tbaa !5
  %25 = add nsw i64 %24, -1
  store i64 %25, ptr %2, align 8, !tbaa !5
  %26 = icmp ne i64 %24, 0
  br i1 %26, label %27, label %184

27:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %28 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #6
  %29 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #6
  call void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %29, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %30 unwind label %36

30:                                               ; preds = %27
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  store i64 0, ptr %8, align 8, !tbaa !5
  br label %31

31:                                               ; preds = %50, %30
  %32 = load i64, ptr %8, align 8, !tbaa !5
  %33 = load i64, ptr %3, align 8, !tbaa !5
  %34 = icmp slt i64 %32, %33
  br i1 %34, label %40, label %35

35:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %57

36:                                               ; preds = %27
  %37 = landingpad { ptr, i32 }
          cleanup
  %38 = extractvalue { ptr, i32 } %37, 0
  store ptr %38, ptr %6, align 8
  %39 = extractvalue { ptr, i32 } %37, 1
  store i32 %39, ptr %7, align 4
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #6
  br label %183

40:                                               ; preds = %31
  %41 = load i64, ptr %8, align 8, !tbaa !5
  %42 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %41) #6
  %43 = getelementptr inbounds %"struct.std::pair", ptr %42, i32 0, i32 0
  %44 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %43)
          to label %45 unwind label %53

45:                                               ; preds = %40
  %46 = load i64, ptr %8, align 8, !tbaa !5
  %47 = load i64, ptr %8, align 8, !tbaa !5
  %48 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %47) #6
  %49 = getelementptr inbounds %"struct.std::pair", ptr %48, i32 0, i32 1
  store i64 %46, ptr %49, align 8, !tbaa !9
  br label %50

50:                                               ; preds = %45
  %51 = load i64, ptr %8, align 8, !tbaa !5
  %52 = add nsw i64 %51, 1
  store i64 %52, ptr %8, align 8, !tbaa !5
  br label %31, !llvm.loop !11

53:                                               ; preds = %40
  %54 = landingpad { ptr, i32 }
          cleanup
  %55 = extractvalue { ptr, i32 } %54, 0
  store ptr %55, ptr %6, align 8
  %56 = extractvalue { ptr, i32 } %54, 1
  store i32 %56, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %182

57:                                               ; preds = %35
  %58 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %59 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  store ptr %58, ptr %59, align 8
  %60 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  %61 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  store ptr %60, ptr %61, align 8
  %62 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %9, i32 0, i32 0
  %63 = load ptr, ptr %62, align 8
  %64 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %10, i32 0, i32 0
  %65 = load ptr, ptr %64, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %63, ptr %65)
          to label %66 unwind label %77

66:                                               ; preds = %57
  call void @llvm.lifetime.start.p0(i64 24, ptr %11) #6
  %67 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  store i64 0, ptr %12, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %13) #6
  call void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  invoke void @_ZNSt6vectorIxSaIxEEC2EmRKxRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %67, ptr noundef nonnull align 8 dereferenceable(8) %12, ptr noundef nonnull align 1 dereferenceable(1) %13)
          to label %68 unwind label %81

68:                                               ; preds = %66
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  %69 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef 0) #6
  %70 = getelementptr inbounds %"struct.std::pair", ptr %69, i32 0, i32 0
  %71 = load i64, ptr %70, align 8, !tbaa !13
  store i64 %71, ptr %14, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #6
  store i64 1, ptr %15, align 8, !tbaa !5
  br label %72

72:                                               ; preds = %103, %68
  %73 = load i64, ptr %15, align 8, !tbaa !5
  %74 = load i64, ptr %3, align 8, !tbaa !5
  %75 = icmp slt i64 %73, %74
  br i1 %75, label %85, label %76

76:                                               ; preds = %72
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #6
  br label %106

77:                                               ; preds = %57
  %78 = landingpad { ptr, i32 }
          cleanup
  %79 = extractvalue { ptr, i32 } %78, 0
  store ptr %79, ptr %6, align 8
  %80 = extractvalue { ptr, i32 } %78, 1
  store i32 %80, ptr %7, align 4
  br label %182

81:                                               ; preds = %66
  %82 = landingpad { ptr, i32 }
          cleanup
  %83 = extractvalue { ptr, i32 } %82, 0
  store ptr %83, ptr %6, align 8
  %84 = extractvalue { ptr, i32 } %82, 1
  store i32 %84, ptr %7, align 4
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  br label %181

85:                                               ; preds = %72
  %86 = load i64, ptr %14, align 8, !tbaa !5
  %87 = load i64, ptr %15, align 8, !tbaa !5
  %88 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %87) #6
  %89 = getelementptr inbounds %"struct.std::pair", ptr %88, i32 0, i32 0
  %90 = load i64, ptr %89, align 8, !tbaa !13
  %91 = icmp slt i64 %86, %90
  br i1 %91, label %92, label %96

92:                                               ; preds = %85
  %93 = load i64, ptr %15, align 8, !tbaa !5
  %94 = sub nsw i64 %93, 1
  %95 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %94) #6
  store i64 1, ptr %95, align 8, !tbaa !5
  br label %96

96:                                               ; preds = %92, %85
  %97 = load i64, ptr %15, align 8, !tbaa !5
  %98 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %97) #6
  %99 = getelementptr inbounds %"struct.std::pair", ptr %98, i32 0, i32 0
  %100 = load i64, ptr %99, align 8, !tbaa !13
  %101 = load i64, ptr %14, align 8, !tbaa !5
  %102 = add nsw i64 %101, %100
  store i64 %102, ptr %14, align 8, !tbaa !5
  br label %103

103:                                              ; preds = %96
  %104 = load i64, ptr %15, align 8, !tbaa !5
  %105 = add nsw i64 %104, 1
  store i64 %105, ptr %15, align 8, !tbaa !5
  br label %72, !llvm.loop !14

106:                                              ; preds = %76
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #6
  %107 = load i64, ptr %3, align 8, !tbaa !5
  %108 = sub nsw i64 %107, 1
  store i64 %108, ptr %16, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #6
  %109 = load i64, ptr %3, align 8, !tbaa !5
  %110 = sub nsw i64 %109, 1
  store i64 %110, ptr %17, align 8, !tbaa !5
  br label %111

111:                                              ; preds = %126, %106
  %112 = load i64, ptr %17, align 8, !tbaa !5
  %113 = icmp sge i64 %112, 0
  br i1 %113, label %115, label %114

114:                                              ; preds = %111
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #6
  br label %129

115:                                              ; preds = %111
  %116 = load i64, ptr %17, align 8, !tbaa !5
  %117 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %116) #6
  %118 = load i64, ptr %117, align 8, !tbaa !5
  %119 = icmp ne i64 %118, 0
  br i1 %119, label %120, label %122

120:                                              ; preds = %115
  %121 = load i64, ptr %17, align 8, !tbaa !5
  store i64 %121, ptr %16, align 8, !tbaa !5
  br label %122

122:                                              ; preds = %120, %115
  %123 = load i64, ptr %16, align 8, !tbaa !5
  %124 = load i64, ptr %17, align 8, !tbaa !5
  %125 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %124) #6
  store i64 %123, ptr %125, align 8, !tbaa !5
  br label %126

126:                                              ; preds = %122
  %127 = load i64, ptr %17, align 8, !tbaa !5
  %128 = add nsw i64 %127, -1
  store i64 %128, ptr %17, align 8, !tbaa !5
  br label %111, !llvm.loop !15

129:                                              ; preds = %114
  call void @llvm.lifetime.start.p0(i64 24, ptr %18) #6
  %130 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %19) #6
  call void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %19) #6
  invoke void @_ZNSt6vectorIxSaIxEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %18, i64 noundef %130, ptr noundef nonnull align 1 dereferenceable(1) %19)
          to label %131 unwind label %137

131:                                              ; preds = %129
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %19) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %19) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %20) #6
  store i64 0, ptr %20, align 8, !tbaa !5
  br label %132

132:                                              ; preds = %150, %131
  %133 = load i64, ptr %20, align 8, !tbaa !5
  %134 = load i64, ptr %3, align 8, !tbaa !5
  %135 = icmp slt i64 %133, %134
  br i1 %135, label %141, label %136

136:                                              ; preds = %132
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #6
  br label %153

137:                                              ; preds = %129
  %138 = landingpad { ptr, i32 }
          cleanup
  %139 = extractvalue { ptr, i32 } %138, 0
  store ptr %139, ptr %6, align 8
  %140 = extractvalue { ptr, i32 } %138, 1
  store i32 %140, ptr %7, align 4
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %19) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %19) #6
  br label %180

141:                                              ; preds = %132
  %142 = load i64, ptr %20, align 8, !tbaa !5
  %143 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %11, i64 noundef %142) #6
  %144 = load i64, ptr %143, align 8, !tbaa !5
  %145 = load i64, ptr %20, align 8, !tbaa !5
  %146 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %145) #6
  %147 = getelementptr inbounds %"struct.std::pair", ptr %146, i32 0, i32 1
  %148 = load i64, ptr %147, align 8, !tbaa !9
  %149 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %18, i64 noundef %148) #6
  store i64 %144, ptr %149, align 8, !tbaa !5
  br label %150

150:                                              ; preds = %141
  %151 = load i64, ptr %20, align 8, !tbaa !5
  %152 = add nsw i64 %151, 1
  store i64 %152, ptr %20, align 8, !tbaa !5
  br label %132, !llvm.loop !16

153:                                              ; preds = %136
  call void @llvm.lifetime.start.p0(i64 8, ptr %21) #6
  store i64 0, ptr %21, align 8, !tbaa !5
  br label %154

154:                                              ; preds = %165, %153
  %155 = load i64, ptr %21, align 8, !tbaa !5
  %156 = load i64, ptr %3, align 8, !tbaa !5
  %157 = icmp slt i64 %155, %156
  br i1 %157, label %159, label %158

158:                                              ; preds = %154
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #6
  br label %172

159:                                              ; preds = %154
  %160 = load i64, ptr %21, align 8, !tbaa !5
  %161 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %18, i64 noundef %160) #6
  %162 = load i64, ptr %161, align 8, !tbaa !5
  %163 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %162)
          to label %164 unwind label %168

164:                                              ; preds = %159
  br label %165

165:                                              ; preds = %164
  %166 = load i64, ptr %21, align 8, !tbaa !5
  %167 = add nsw i64 %166, 1
  store i64 %167, ptr %21, align 8, !tbaa !5
  br label %154, !llvm.loop !17

168:                                              ; preds = %159
  %169 = landingpad { ptr, i32 }
          cleanup
  %170 = extractvalue { ptr, i32 } %169, 0
  store ptr %170, ptr %6, align 8
  %171 = extractvalue { ptr, i32 } %169, 1
  store i32 %171, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %21) #6
  br label %179

172:                                              ; preds = %158
  %173 = invoke i32 @puts(ptr noundef @.str.2)
          to label %174 unwind label %175

174:                                              ; preds = %172
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %18) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #6
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  br label %23, !llvm.loop !18

175:                                              ; preds = %172
  %176 = landingpad { ptr, i32 }
          cleanup
  %177 = extractvalue { ptr, i32 } %176, 0
  store ptr %177, ptr %6, align 8
  %178 = extractvalue { ptr, i32 } %176, 1
  store i32 %178, ptr %7, align 4
  br label %179

179:                                              ; preds = %175, %168
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %18) #6
  br label %180

180:                                              ; preds = %179, %137
  call void @llvm.lifetime.end.p0(i64 24, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %11) #6
  br label %181

181:                                              ; preds = %180, %81
  call void @llvm.lifetime.end.p0(i64 24, ptr %11) #6
  br label %182

182:                                              ; preds = %181, %77, %53
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #6
  br label %183

183:                                              ; preds = %182, %36
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %186

184:                                              ; preds = %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %185 = load i32, ptr %1, align 4
  ret i32 %185

186:                                              ; preds = %183
  %187 = load ptr, ptr %6, align 8
  %188 = load i32, ptr %7, align 4
  %189 = insertvalue { ptr, i32 } poison, ptr %187, 0
  %190 = insertvalue { ptr, i32 } %189, i32 %188, 1
  resume { ptr, i32 } %190
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEEC2EmRKxRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

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

declare i32 @puts(ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

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

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!10, !6, i64 0}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}
!17 = distinct !{!17, !12}
!18 = distinct !{!18, !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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca %"class.std::vector.0", align 8
  %6 = alloca i64, align 8
  %7 = alloca %"class.std::allocator.2", align 1
  %8 = alloca %"class.std::vector.0", align 8
  %9 = alloca %"class.std::allocator.2", align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %11 = load i64, ptr %1, align 8, !tbaa !5
  %12 = add nsw i64 %11, -1
  store i64 %12, ptr %1, align 8, !tbaa !5
  %.not61 = icmp eq i64 %11, 0
  br i1 %.not61, label %._crit_edge64, label %.lr.ph63

.lr.ph63:                                         ; preds = %0, %._crit_edge60
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  %14 = load i64, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  call void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %14, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %15 unwind label %20

15:                                               ; preds = %.lr.ph63
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = icmp sgt i64 %16, 0
  br i1 %17, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %15
  %18 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  %19 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %18, ptr %19)
          to label %29 unwind label %38

20:                                               ; preds = %.lr.ph63
  %21 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %86

.lr.ph:                                           ; preds = %15, %.lr.ph
  %.03844 = phi i64 [ %26, %.lr.ph ], [ 0, %15 ]
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.03844) #6
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %22)
  %24 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.03844) #6
  %25 = getelementptr inbounds i8, ptr %24, i64 8
  store i64 %.03844, ptr %25, align 8, !tbaa !9
  %26 = add nuw nsw i64 %.03844, 1
  %27 = load i64, ptr %2, align 8, !tbaa !5
  %28 = icmp slt i64 %26, %27
  br i1 %28, label %.lr.ph, label %._crit_edge, !llvm.loop !11

29:                                               ; preds = %._crit_edge
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #6
  %30 = load i64, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #6
  store i64 0, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #6
  call void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %7) #6
  invoke void @_ZNSt6vectorIxSaIxEEC2EmRKxRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %30, ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 1 dereferenceable(1) %7)
          to label %31 unwind label %40

31:                                               ; preds = %29
  call void @_ZNSt15__new_allocatorIxED2Ev(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 8, ptr nonnull %6) #6
  %32 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef 0) #6
  %33 = load i64, ptr %2, align 8, !tbaa !5
  %34 = icmp sgt i64 %33, 1
  br i1 %34, label %.lr.ph48.preheader, label %._crit_edge49

.lr.ph48.preheader:                               ; preds = %31
  %35 = load i64, ptr %32, align 8, !tbaa !13
  br label %.lr.ph48

._crit_edge49:                                    ; preds = %48, %31
  %.lcssa = phi i64 [ %33, %31 ], [ %53, %48 ]
  %36 = icmp sgt i64 %.lcssa, 0
  br i1 %36, label %.lr.ph53.preheader, label %._crit_edge54

.lr.ph53.preheader:                               ; preds = %._crit_edge49
  %37 = add nsw i64 %.lcssa, -1
  br label %.lr.ph53

38:                                               ; preds = %._crit_edge
  %39 = landingpad { ptr, i32 }
          cleanup
  br label %85

40:                                               ; preds = %29
  %41 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIxED2Ev(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 8, ptr nonnull %6) #6
  br label %84

.lr.ph48:                                         ; preds = %.lr.ph48.preheader, %48
  %.03146 = phi i64 [ %52, %48 ], [ 1, %.lr.ph48.preheader ]
  %.03245 = phi i64 [ %51, %48 ], [ %35, %.lr.ph48.preheader ]
  %42 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.03146) #6
  %43 = load i64, ptr %42, align 8, !tbaa !13
  %44 = icmp slt i64 %.03245, %43
  br i1 %44, label %45, label %48

45:                                               ; preds = %.lr.ph48
  %46 = add nsw i64 %.03146, -1
  %47 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %46) #6
  store i64 1, ptr %47, align 8, !tbaa !5
  br label %48

48:                                               ; preds = %45, %.lr.ph48
  %49 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.03146) #6
  %50 = load i64, ptr %49, align 8, !tbaa !13
  %51 = add nsw i64 %50, %.03245
  %52 = add nuw nsw i64 %.03146, 1
  %53 = load i64, ptr %2, align 8, !tbaa !5
  %54 = icmp slt i64 %52, %53
  br i1 %54, label %.lr.ph48, label %._crit_edge49, !llvm.loop !14

._crit_edge54.loopexit:                           ; preds = %.lr.ph53
  %.pre = load i64, ptr %2, align 8, !tbaa !5
  br label %._crit_edge54

._crit_edge54:                                    ; preds = %._crit_edge54.loopexit, %._crit_edge49
  %55 = phi i64 [ %.pre, %._crit_edge54.loopexit ], [ %.lcssa, %._crit_edge49 ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %8) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %9) #6
  call void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  invoke void @_ZNSt6vectorIxSaIxEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %55, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %60 unwind label %64

.lr.ph53:                                         ; preds = %.lr.ph53.preheader, %.lr.ph53
  %.02951 = phi i64 [ %59, %.lr.ph53 ], [ %37, %.lr.ph53.preheader ]
  %.03050 = phi i64 [ %spec.select, %.lr.ph53 ], [ %37, %.lr.ph53.preheader ]
  %56 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %.02951) #6
  %57 = load i64, ptr %56, align 8, !tbaa !5
  %.not43 = icmp eq i64 %57, 0
  %spec.select = select i1 %.not43, i64 %.03050, i64 %.02951
  %58 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %.02951) #6
  store i64 %spec.select, ptr %58, align 8, !tbaa !5
  %59 = add nsw i64 %.02951, -1
  %.not68 = icmp eq i64 %.02951, 0
  br i1 %.not68, label %._crit_edge54.loopexit, label %.lr.ph53, !llvm.loop !15

60:                                               ; preds = %._crit_edge54
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #6
  %61 = load i64, ptr %2, align 8, !tbaa !5
  %62 = icmp sgt i64 %61, 0
  br i1 %62, label %.lr.ph57, label %._crit_edge60

.preheader:                                       ; preds = %.lr.ph57
  %63 = icmp sgt i64 %73, 0
  br i1 %63, label %.lr.ph59, label %._crit_edge60

64:                                               ; preds = %._crit_edge54
  %65 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %8) #6
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  br label %84

.lr.ph57:                                         ; preds = %60, %.lr.ph57
  %.02855 = phi i64 [ %72, %.lr.ph57 ], [ 0, %60 ]
  %66 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %.02855) #6
  %67 = load i64, ptr %66, align 8, !tbaa !5
  %68 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.02855) #6
  %69 = getelementptr inbounds i8, ptr %68, i64 8
  %70 = load i64, ptr %69, align 8, !tbaa !9
  %71 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %70) #6
  store i64 %67, ptr %71, align 8, !tbaa !5
  %72 = add nuw nsw i64 %.02855, 1
  %73 = load i64, ptr %2, align 8, !tbaa !5
  %74 = icmp slt i64 %72, %73
  br i1 %74, label %.lr.ph57, label %.preheader, !llvm.loop !16

._crit_edge60:                                    ; preds = %.lr.ph59, %60, %.preheader
  %75 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %8) #6
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #6
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  %76 = load i64, ptr %1, align 8, !tbaa !5
  %77 = add nsw i64 %76, -1
  store i64 %77, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %76, 0
  br i1 %.not, label %._crit_edge64, label %.lr.ph63, !llvm.loop !17

.lr.ph59:                                         ; preds = %.preheader, %.lr.ph59
  %.058 = phi i64 [ %81, %.lr.ph59 ], [ 0, %.preheader ]
  %78 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %.058) #6
  %79 = load i64, ptr %78, align 8, !tbaa !5
  %80 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %79)
  %81 = add nuw nsw i64 %.058, 1
  %82 = load i64, ptr %2, align 8, !tbaa !5
  %83 = icmp slt i64 %81, %82
  br i1 %83, label %.lr.ph59, label %._crit_edge60, !llvm.loop !18

84:                                               ; preds = %64, %40
  %.pn = phi { ptr, i32 } [ %65, %64 ], [ %41, %40 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #6
  br label %85

85:                                               ; preds = %84, %38
  %.pn.pn = phi { ptr, i32 } [ %.pn, %84 ], [ %39, %38 ]
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %86

86:                                               ; preds = %85, %20
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %85 ], [ %21, %20 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn.pn

._crit_edge64:                                    ; preds = %._crit_edge60, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEEC2EmRKxRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

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

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!10, !6, i64 0}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}
!17 = distinct !{!17, !12}
!18 = distinct !{!18, !12}


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