; LLVM IR from Shah-Shishir/Codeforces-Solutions :: 962A. Equator AC (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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca [200001 x i32], align 16
  %4 = alloca i32, align 4
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 800004, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  br label %8

8:                                                ; preds = %70, %0
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  %10 = icmp ne i32 %9, -1
  br i1 %10, label %11, label %71

11:                                               ; preds = %8
  store i64 0, ptr %6, align 8, !tbaa !5
  store i64 0, ptr %5, align 8, !tbaa !5
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %12

12:                                               ; preds = %28, %11
  %13 = load i32, ptr %4, align 4, !tbaa !9
  %14 = load i32, ptr %2, align 4, !tbaa !9
  %15 = icmp slt i32 %13, %14
  br i1 %15, label %16, label %31

16:                                               ; preds = %12
  %17 = load i32, ptr %4, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [200001 x i32], ptr %3, i64 0, i64 %18
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %19)
  %21 = load i32, ptr %4, align 4, !tbaa !9
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [200001 x i32], ptr %3, i64 0, i64 %22
  %24 = load i32, ptr %23, align 4, !tbaa !9
  %25 = sext i32 %24 to i64
  %26 = load i64, ptr %5, align 8, !tbaa !5
  %27 = add i64 %26, %25
  store i64 %27, ptr %5, align 8, !tbaa !5
  br label %28

28:                                               ; preds = %16
  %29 = load i32, ptr %4, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %4, align 4, !tbaa !9
  br label %12, !llvm.loop !11

31:                                               ; preds = %12
  %32 = load i64, ptr %5, align 8, !tbaa !5
  %33 = lshr i64 %32, 1
  store i64 %33, ptr %7, align 8, !tbaa !5
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %34

34:                                               ; preds = %67, %31
  %35 = load i32, ptr %4, align 4, !tbaa !9
  %36 = load i32, ptr %2, align 4, !tbaa !9
  %37 = icmp slt i32 %35, %36
  br i1 %37, label %38, label %70

38:                                               ; preds = %34
  %39 = load i32, ptr %4, align 4, !tbaa !9
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [200001 x i32], ptr %3, i64 0, i64 %40
  %42 = load i32, ptr %41, align 4, !tbaa !9
  %43 = sext i32 %42 to i64
  %44 = load i64, ptr %6, align 8, !tbaa !5
  %45 = add i64 %44, %43
  store i64 %45, ptr %6, align 8, !tbaa !5
  %46 = load i64, ptr %6, align 8, !tbaa !5
  %47 = load i64, ptr %7, align 8, !tbaa !5
  %48 = icmp uge i64 %46, %47
  br i1 %48, label %49, label %53

49:                                               ; preds = %38
  %50 = load i64, ptr %5, align 8, !tbaa !5
  %51 = and i64 %50, 1
  %52 = icmp ne i64 %51, 0
  br i1 %52, label %53, label %62

53:                                               ; preds = %49, %38
  %54 = load i64, ptr %6, align 8, !tbaa !5
  %55 = load i64, ptr %7, align 8, !tbaa !5
  %56 = add i64 %55, 1
  %57 = icmp uge i64 %54, %56
  br i1 %57, label %58, label %66

58:                                               ; preds = %53
  %59 = load i64, ptr %5, align 8, !tbaa !5
  %60 = and i64 %59, 1
  %61 = icmp ne i64 %60, 0
  br i1 %61, label %62, label %66

62:                                               ; preds = %58, %49
  %63 = load i32, ptr %4, align 4, !tbaa !9
  %64 = add nsw i32 %63, 1
  store i32 %64, ptr %4, align 4, !tbaa !9
  %65 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %64)
  br label %70

66:                                               ; preds = %58, %53
  br label %67

67:                                               ; preds = %66
  %68 = load i32, ptr %4, align 4, !tbaa !9
  %69 = add nsw i32 %68, 1
  store i32 %69, ptr %4, align 4, !tbaa !9
  br label %34, !llvm.loop !13

70:                                               ; preds = %62, %34
  br label %8, !llvm.loop !14

71:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 800004, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  ret i32 0
}

; 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

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

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

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 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca [200001 x i32], align 16
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 800004, ptr nonnull %2) #3
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %.not33 = icmp eq i32 %3, -1
  br i1 %.not33, label %._crit_edge34, label %.preheader

.preheader:                                       ; preds = %0, %.loopexit
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.preheader ]
  %.01826 = phi i64 [ %10, %.lr.ph ], [ 0, %.preheader ]
  %6 = getelementptr inbounds [200001 x i32], ptr %2, i64 0, i64 %indvars.iv
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %6)
  %8 = load i32, ptr %6, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = add i64 %.01826, %9
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %11 = load i32, ptr %1, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = icmp slt i64 %indvars.iv.next, %12
  br i1 %13, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph
  %14 = lshr i64 %10, 1
  %15 = icmp sgt i32 %11, 0
  br i1 %15, label %.lr.ph32, label %.loopexit

.lr.ph32:                                         ; preds = %._crit_edge
  %16 = and i64 %10, 1
  %.not20 = icmp eq i64 %16, 0
  %wide.trip.count = zext nneg i32 %11 to i64
  br label %17

17:                                               ; preds = %.lr.ph32, %26
  %indvars.iv39 = phi i64 [ 0, %.lr.ph32 ], [ %indvars.iv.next40, %26 ]
  %.01729 = phi i64 [ 0, %.lr.ph32 ], [ %21, %26 ]
  %18 = getelementptr inbounds [200001 x i32], ptr %2, i64 0, i64 %indvars.iv39
  %19 = load i32, ptr %18, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = add i64 %.01729, %20
  %.not19 = icmp uge i64 %21, %14
  %or.cond = and i1 %.not20, %.not19
  %or.cond.not = xor i1 %or.cond, true
  %.not21.not = icmp ule i64 %21, %14
  %or.cond23 = or i1 %.not20, %.not21.not
  %or.cond24 = select i1 %or.cond.not, i1 %or.cond23, i1 false
  br i1 %or.cond24, label %26, label %22

22:                                               ; preds = %17
  %23 = trunc nuw nsw i64 %indvars.iv39 to i32
  %24 = add nuw nsw i32 %23, 1
  %25 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %24)
  br label %.loopexit

26:                                               ; preds = %17
  %indvars.iv.next40 = add nuw nsw i64 %indvars.iv39, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next40, %wide.trip.count
  br i1 %exitcond.not, label %.loopexit, label %17, !llvm.loop !11

.loopexit:                                        ; preds = %26, %.preheader, %._crit_edge, %22
  %27 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %.not = icmp eq i32 %27, -1
  br i1 %.not, label %._crit_edge34, label %.preheader, !llvm.loop !12

._crit_edge34:                                    ; preds = %.loopexit, %0
  call void @llvm.lifetime.end.p0(i64 800004, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #3
  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: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

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

attributes #0 = { mustprogress nofree norecurse 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 #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 = { nounwind }

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

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


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