; LLVM IR from xirc/cp-algorithm :: atcoder/abc124/D/main.ll/Z5solveiiRKNSt7 (cxx1112basic_stringIcSt11char_traitsIcESaIcEEE)

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

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5solveiiRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(i32 noundef %0, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(32) %2) #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca %"class.std::vector", align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca %"struct.std::pair", align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = alloca %"struct.std::pair", align 4
  %17 = alloca %"struct.std::pair", align 4
  %18 = alloca i32, align 4
  %19 = alloca i32, align 4
  %20 = alloca i32, align 4
  %21 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %8) #4
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  %22 = load i32, ptr %5, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %23)
          to label %24 unwind label %33

24:                                               ; preds = %3
  %25 = load ptr, ptr %7, align 8, !tbaa !9
  %26 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %25, i64 noundef 0) #4
  %27 = load i8, ptr %26, align 1, !tbaa !11
  %28 = sext i8 %27 to i32
  %29 = icmp eq i32 %28, 48
  br i1 %29, label %30, label %41

30:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  store i32 0, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  store i32 0, ptr %13, align 4, !tbaa !5
  invoke void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %11, ptr noundef nonnull align 4 dereferenceable(4) %12, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %31 unwind label %37

31:                                               ; preds = %30
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %8, ptr noundef nonnull align 4 dereferenceable(8) %11)
          to label %32 unwind label %37

32:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  br label %41

33:                                               ; preds = %3
  %34 = landingpad { ptr, i32 }
          cleanup
  %35 = extractvalue { ptr, i32 } %34, 0
  store ptr %35, ptr %9, align 8
  %36 = extractvalue { ptr, i32 } %34, 1
  store i32 %36, ptr %10, align 4
  br label %146

37:                                               ; preds = %31, %30
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %9, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  br label %146

41:                                               ; preds = %32, %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #4
  store i32 0, ptr %14, align 4, !tbaa !5
  br label %42

42:                                               ; preds = %79, %54, %41
  %43 = load i32, ptr %14, align 4, !tbaa !5
  %44 = load i32, ptr %5, align 4, !tbaa !5
  %45 = icmp slt i32 %43, %44
  br i1 %45, label %46, label %85

46:                                               ; preds = %42
  %47 = load ptr, ptr %7, align 8, !tbaa !9
  %48 = load i32, ptr %14, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %47, i64 noundef %49) #4
  %51 = load i8, ptr %50, align 1, !tbaa !11
  %52 = sext i8 %51 to i32
  %53 = icmp eq i32 %52, 48
  br i1 %53, label %54, label %57

54:                                               ; preds = %46
  %55 = load i32, ptr %14, align 4, !tbaa !5
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %14, align 4, !tbaa !5
  br label %42, !llvm.loop !12

57:                                               ; preds = %46
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #4
  %58 = load i32, ptr %14, align 4, !tbaa !5
  %59 = add nsw i32 %58, 1
  store i32 %59, ptr %15, align 4, !tbaa !5
  br label %60

60:                                               ; preds = %74, %57
  %61 = load i32, ptr %15, align 4, !tbaa !5
  %62 = load i32, ptr %5, align 4, !tbaa !5
  %63 = icmp slt i32 %61, %62
  br i1 %63, label %64, label %77

64:                                               ; preds = %60
  %65 = load ptr, ptr %7, align 8, !tbaa !9
  %66 = load i32, ptr %15, align 4, !tbaa !5
  %67 = sext i32 %66 to i64
  %68 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %65, i64 noundef %67) #4
  %69 = load i8, ptr %68, align 1, !tbaa !11
  %70 = sext i8 %69 to i32
  %71 = icmp eq i32 %70, 48
  br i1 %71, label %72, label %73

72:                                               ; preds = %64
  br label %77

73:                                               ; preds = %64
  br label %74

74:                                               ; preds = %73
  %75 = load i32, ptr %15, align 4, !tbaa !5
  %76 = add nsw i32 %75, 1
  store i32 %76, ptr %15, align 4, !tbaa !5
  br label %60, !llvm.loop !14

77:                                               ; preds = %72, %60
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #4
  invoke void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %16, ptr noundef nonnull align 4 dereferenceable(4) %14, ptr noundef nonnull align 4 dereferenceable(4) %15)
          to label %78 unwind label %81

78:                                               ; preds = %77
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %8, ptr noundef nonnull align 4 dereferenceable(8) %16)
          to label %79 unwind label %81

79:                                               ; preds = %78
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  %80 = load i32, ptr %15, align 4, !tbaa !5
  store i32 %80, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  br label %42, !llvm.loop !12

81:                                               ; preds = %78, %77
  %82 = landingpad { ptr, i32 }
          cleanup
  %83 = extractvalue { ptr, i32 } %82, 0
  store ptr %83, ptr %9, align 8
  %84 = extractvalue { ptr, i32 } %82, 1
  store i32 %84, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  br label %145

85:                                               ; preds = %42
  %86 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  %87 = getelementptr inbounds %"struct.std::pair", ptr %86, i32 0, i32 1
  %88 = load i32, ptr %87, align 4, !tbaa !15
  %89 = load i32, ptr %5, align 4, !tbaa !5
  %90 = icmp slt i32 %88, %89
  br i1 %90, label %91, label %98

91:                                               ; preds = %85
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #4
  invoke void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %17, ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %92 unwind label %94

92:                                               ; preds = %91
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %8, ptr noundef nonnull align 4 dereferenceable(8) %17)
          to label %93 unwind label %94

93:                                               ; preds = %92
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #4
  br label %98

94:                                               ; preds = %92, %91
  %95 = landingpad { ptr, i32 }
          cleanup
  %96 = extractvalue { ptr, i32 } %95, 0
  store ptr %96, ptr %9, align 8
  %97 = extractvalue { ptr, i32 } %95, 1
  store i32 %97, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #4
  br label %145

98:                                               ; preds = %93, %85
  %99 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  %100 = load i32, ptr %6, align 4, !tbaa !5
  %101 = add nsw i32 %100, 1
  %102 = sext i32 %101 to i64
  %103 = icmp ule i64 %99, %102
  br i1 %103, label %104, label %108

104:                                              ; preds = %98
  %105 = load ptr, ptr %7, align 8, !tbaa !9
  %106 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %105) #4
  %107 = trunc i64 %106 to i32
  store i32 %107, ptr %4, align 4
  store i32 1, ptr %18, align 4
  br label %143

108:                                              ; preds = %98
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #4
  store i32 0, ptr %19, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #4
  store i32 0, ptr %20, align 4, !tbaa !5
  br label %109

109:                                              ; preds = %134, %108
  %110 = load i32, ptr %20, align 4, !tbaa !5
  %111 = load i32, ptr %6, align 4, !tbaa !5
  %112 = add nsw i32 %110, %111
  %113 = sext i32 %112 to i64
  %114 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  %115 = icmp ult i64 %113, %114
  br i1 %115, label %117, label %116

116:                                              ; preds = %109
  store i32 7, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #4
  br label %141

117:                                              ; preds = %109
  call void @llvm.lifetime.start.p0(i64 4, ptr %21) #4
  %118 = load i32, ptr %20, align 4, !tbaa !5
  %119 = load i32, ptr %6, align 4, !tbaa !5
  %120 = add nsw i32 %118, %119
  %121 = sext i32 %120 to i64
  %122 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %121) #4
  %123 = getelementptr inbounds %"struct.std::pair", ptr %122, i32 0, i32 1
  %124 = load i32, ptr %123, align 4, !tbaa !15
  %125 = load i32, ptr %20, align 4, !tbaa !5
  %126 = sext i32 %125 to i64
  %127 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %8, i64 noundef %126) #4
  %128 = getelementptr inbounds %"struct.std::pair", ptr %127, i32 0, i32 0
  %129 = load i32, ptr %128, align 4, !tbaa !17
  %130 = sub nsw i32 %124, %129
  store i32 %130, ptr %21, align 4, !tbaa !5
  %131 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %19, ptr noundef nonnull align 4 dereferenceable(4) %21)
          to label %132 unwind label %137

132:                                              ; preds = %117
  %133 = load i32, ptr %131, align 4, !tbaa !5
  store i32 %133, ptr %19, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %21) #4
  br label %134

134:                                              ; preds = %132
  %135 = load i32, ptr %20, align 4, !tbaa !5
  %136 = add nsw i32 %135, 1
  store i32 %136, ptr %20, align 4, !tbaa !5
  br label %109, !llvm.loop !18

137:                                              ; preds = %117
  %138 = landingpad { ptr, i32 }
          cleanup
  %139 = extractvalue { ptr, i32 } %138, 0
  store ptr %139, ptr %9, align 8
  %140 = extractvalue { ptr, i32 } %138, 1
  store i32 %140, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %21) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #4
  br label %145

141:                                              ; preds = %116
  %142 = load i32, ptr %19, align 4, !tbaa !5
  store i32 %142, ptr %4, align 4
  store i32 1, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #4
  br label %143

143:                                              ; preds = %141, %104
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #4
  %144 = load i32, ptr %4, align 4
  ret i32 %144

145:                                              ; preds = %137, %94, %81
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  br label %146

146:                                              ; preds = %145, %37, %33
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %8) #4
  br label %147

147:                                              ; preds = %146
  %148 = load ptr, ptr %9, align 8
  %149 = load i32, ptr %10, align 4
  %150 = insertvalue { ptr, i32 } poison, ptr %148, 0
  %151 = insertvalue { ptr, i32 } %150, i32 %149, 1
  resume { ptr, i32 } %151
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; 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 void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}
!15 = !{!16, !6, i64 4}
!16 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!17 = !{!16, !6, i64 0}
!18 = distinct !{!18, !13}


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

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5solveiiRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(i32 noundef %0, i32 noundef %1, ptr noundef nonnull align 8 dereferenceable(32) %2) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"struct.std::pair", align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca %"struct.std::pair", align 4
  %12 = alloca %"struct.std::pair", align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #4
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  %15 = sext i32 %0 to i64
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %15)
          to label %16 unwind label %22

16:                                               ; preds = %3
  %17 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0) #4
  %18 = load i8, ptr %17, align 1, !tbaa !9
  %19 = icmp eq i8 %18, 48
  br i1 %19, label %20, label %26

20:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #4
  store i32 0, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #4
  store i32 0, ptr %8, align 4, !tbaa !5
  call void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %8)
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 4 dereferenceable(8) %6)
          to label %21 unwind label %24

21:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  br label %26

22:                                               ; preds = %3
  %23 = landingpad { ptr, i32 }
          cleanup
  br label %88

24:                                               ; preds = %20
  %25 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  br label %88

26:                                               ; preds = %21, %16
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %9) #4
  store i32 0, ptr %9, align 4, !tbaa !5
  %27 = icmp sgt i32 %0, 0
  br i1 %27, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %26, %.backedge
  %28 = phi i32 [ %36, %.backedge ], [ 0, %26 ]
  %29 = sext i32 %28 to i64
  %30 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %29) #4
  %31 = load i8, ptr %30, align 1, !tbaa !9
  %32 = icmp eq i8 %31, 48
  br i1 %32, label %33, label %.peel.begin

33:                                               ; preds = %.lr.ph
  %34 = load i32, ptr %9, align 4, !tbaa !5
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %9, align 4, !tbaa !5
  br label %.backedge

.backedge:                                        ; preds = %33, %50
  %36 = phi i32 [ %35, %33 ], [ %51, %50 ]
  %37 = icmp slt i32 %36, %0
  br i1 %37, label %.lr.ph, label %._crit_edge, !llvm.loop !10

.peel.begin:                                      ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %10) #4
  %storemerge.in.peel = load i32, ptr %9, align 4, !tbaa !5
  %storemerge.peel = add nsw i32 %storemerge.in.peel, 1
  store i32 %storemerge.peel, ptr %10, align 4, !tbaa !5
  %38 = icmp slt i32 %storemerge.peel, %0
  br i1 %38, label %39, label %.loopexit

39:                                               ; preds = %.peel.begin
  %40 = sext i32 %storemerge.peel to i64
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %40) #4
  %42 = load i8, ptr %41, align 1, !tbaa !9
  %43 = icmp eq i8 %42, 48
  br i1 %43, label %.loopexit, label %.peel.next

.peel.next:                                       ; preds = %39, %45
  %storemerge.in = load i32, ptr %10, align 4, !tbaa !5
  %storemerge = add nsw i32 %storemerge.in, 1
  store i32 %storemerge, ptr %10, align 4, !tbaa !5
  %44 = icmp slt i32 %storemerge, %0
  br i1 %44, label %45, label %.loopexit

45:                                               ; preds = %.peel.next
  %46 = sext i32 %storemerge to i64
  %47 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef %46) #4
  %48 = load i8, ptr %47, align 1, !tbaa !9
  %49 = icmp eq i8 %48, 48
  br i1 %49, label %.loopexit, label %.peel.next, !llvm.loop !12

.loopexit:                                        ; preds = %45, %.peel.next, %39, %.peel.begin
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %11) #4
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %11, ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 4 dereferenceable(4) %10)
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 4 dereferenceable(8) %11)
          to label %50 unwind label %52

50:                                               ; preds = %.loopexit
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #4
  %51 = load i32, ptr %10, align 4, !tbaa !5
  store i32 %51, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #4
  br label %.backedge

52:                                               ; preds = %.loopexit
  %53 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %10) #4
  br label %87

._crit_edge:                                      ; preds = %.backedge, %26
  %54 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  %55 = getelementptr inbounds i8, ptr %54, i64 4
  %56 = load i32, ptr %55, align 4, !tbaa !14
  %57 = icmp slt i32 %56, %0
  br i1 %57, label %58, label %62

58:                                               ; preds = %._crit_edge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %12) #4
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %12, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %4)
  invoke void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 4 dereferenceable(8) %12)
          to label %59 unwind label %60

59:                                               ; preds = %58
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #4
  br label %62

60:                                               ; preds = %58
  %61 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %12) #4
  br label %87

62:                                               ; preds = %59, %._crit_edge
  %63 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  %64 = add nsw i32 %1, 1
  %65 = sext i32 %64 to i64
  %.not = icmp ugt i64 %63, %65
  br i1 %.not, label %69, label %66

66:                                               ; preds = %62
  %67 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  %68 = trunc i64 %67 to i32
  br label %86

69:                                               ; preds = %62
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %13) #4
  store i32 0, ptr %13, align 4, !tbaa !5
  %70 = sext i32 %1 to i64
  %71 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  %72 = icmp ugt i64 %71, %70
  br i1 %72, label %.lr.ph24, label %._crit_edge25

._crit_edge25.loopexit:                           ; preds = %.lr.ph24
  %.pre = load i32, ptr %13, align 4, !tbaa !5
  br label %._crit_edge25

._crit_edge25:                                    ; preds = %._crit_edge25.loopexit, %69
  %73 = phi i32 [ %.pre, %._crit_edge25.loopexit ], [ 0, %69 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %13) #4
  br label %86

.lr.ph24:                                         ; preds = %69, %.lr.ph24
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph24 ], [ 0, %69 ]
  %74 = add nsw i64 %indvars.iv, %70
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %14) #4
  %75 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %74) #4
  %76 = getelementptr inbounds i8, ptr %75, i64 4
  %77 = load i32, ptr %76, align 4, !tbaa !14
  %78 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %indvars.iv) #4
  %79 = load i32, ptr %78, align 4, !tbaa !16
  %80 = sub nsw i32 %77, %79
  store i32 %80, ptr %14, align 4, !tbaa !5
  %81 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %13, ptr noundef nonnull align 4 dereferenceable(4) %14)
  %82 = load i32, ptr %81, align 4, !tbaa !5
  store i32 %82, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %14) #4
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %83 = add nsw i64 %indvars.iv.next, %70
  %84 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  %85 = icmp ugt i64 %84, %83
  br i1 %85, label %.lr.ph24, label %._crit_edge25.loopexit, !llvm.loop !17

86:                                               ; preds = %._crit_edge25, %66
  %.016 = phi i32 [ %68, %66 ], [ %73, %._crit_edge25 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #4
  ret i32 %.016

87:                                               ; preds = %60, %52
  %.pn = phi { ptr, i32 } [ %53, %52 ], [ %61, %60 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %9) #4
  br label %88

88:                                               ; preds = %87, %24, %22
  %.pn.pn = phi { ptr, i32 } [ %.pn, %87 ], [ %25, %24 ], [ %23, %22 ]
  call void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #4
  resume { ptr, i32 } %.pn.pn
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; 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 void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIiiESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11, !13}
!13 = !{!"llvm.loop.peeled.count", i32 1}
!14 = !{!15, !6, i64 4}
!15 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!16 = !{!15, !6, i64 0}
!17 = distinct !{!17, !11}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopFullUnrollPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass