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c++ source #1
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Intel asm syntax
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Debug intrinsics
Compiler
6502-c++ 11.1.0
ARM GCC 10.2.0
ARM GCC 10.3.0
ARM GCC 10.4.0
ARM GCC 10.5.0
ARM GCC 11.1.0
ARM GCC 11.2.0
ARM GCC 11.3.0
ARM GCC 11.4.0
ARM GCC 12.1.0
ARM GCC 12.2.0
ARM GCC 12.3.0
ARM GCC 12.4.0
ARM GCC 12.5.0
ARM GCC 13.1.0
ARM GCC 13.2.0
ARM GCC 13.2.0 (unknown-eabi)
ARM GCC 13.3.0
ARM GCC 13.3.0 (unknown-eabi)
ARM GCC 13.4.0
ARM GCC 13.4.0 (unknown-eabi)
ARM GCC 14.1.0
ARM GCC 14.1.0 (unknown-eabi)
ARM GCC 14.2.0
ARM GCC 14.2.0 (unknown-eabi)
ARM GCC 14.3.0
ARM GCC 14.3.0 (unknown-eabi)
ARM GCC 15.1.0
ARM GCC 15.1.0 (unknown-eabi)
ARM GCC 15.2.0
ARM GCC 15.2.0 (unknown-eabi)
ARM GCC 4.5.4
ARM GCC 4.6.4
ARM GCC 5.4
ARM GCC 6.3.0
ARM GCC 6.4.0
ARM GCC 7.3.0
ARM GCC 7.5.0
ARM GCC 8.2.0
ARM GCC 8.5.0
ARM GCC 9.3.0
ARM GCC 9.4.0
ARM GCC 9.5.0
ARM GCC trunk
ARM gcc 10.2.1 (none)
ARM gcc 10.3.1 (2021.07 none)
ARM gcc 10.3.1 (2021.10 none)
ARM gcc 11.2.1 (none)
ARM gcc 5.4.1 (none)
ARM gcc 7.2.1 (none)
ARM gcc 8.2 (WinCE)
ARM gcc 8.3.1 (none)
ARM gcc 9.2.1 (none)
ARM msvc v19.0 (ex-WINE)
ARM msvc v19.10 (ex-WINE)
ARM msvc v19.14 (ex-WINE)
ARM64 Morello gcc 10.1 Alpha 2
ARM64 gcc 10.2
ARM64 gcc 10.3
ARM64 gcc 10.4
ARM64 gcc 10.5.0
ARM64 gcc 11.1
ARM64 gcc 11.2
ARM64 gcc 11.3
ARM64 gcc 11.4.0
ARM64 gcc 12.1
ARM64 gcc 12.2.0
ARM64 gcc 12.3.0
ARM64 gcc 12.4.0
ARM64 gcc 12.5.0
ARM64 gcc 13.1.0
ARM64 gcc 13.2.0
ARM64 gcc 13.3.0
ARM64 gcc 13.4.0
ARM64 gcc 14.1.0
ARM64 gcc 14.2.0
ARM64 gcc 14.3.0
ARM64 gcc 15.1.0
ARM64 gcc 15.2.0
ARM64 gcc 4.9.4
ARM64 gcc 5.4
ARM64 gcc 5.5.0
ARM64 gcc 6.3
ARM64 gcc 6.4
ARM64 gcc 7.3
ARM64 gcc 7.5
ARM64 gcc 8.2
ARM64 gcc 8.5
ARM64 gcc 9.3
ARM64 gcc 9.4
ARM64 gcc 9.5
ARM64 gcc trunk
ARM64 msvc v19.14 (ex-WINE)
AVR gcc 10.3.0
AVR gcc 11.1.0
AVR gcc 12.1.0
AVR gcc 12.2.0
AVR gcc 12.3.0
AVR gcc 12.4.0
AVR gcc 12.5.0
AVR gcc 13.1.0
AVR gcc 13.2.0
AVR gcc 13.3.0
AVR gcc 13.4.0
AVR gcc 14.1.0
AVR gcc 14.2.0
AVR gcc 14.3.0
AVR gcc 15.1.0
AVR gcc 15.2.0
AVR gcc 4.5.4
AVR gcc 4.6.4
AVR gcc 5.4.0
AVR gcc 9.2.0
AVR gcc 9.3.0
Arduino Mega (1.8.9)
Arduino Uno (1.8.9)
BPF clang (trunk)
BPF clang 13.0.0
BPF clang 14.0.0
BPF clang 15.0.0
BPF clang 16.0.0
BPF clang 17.0.1
BPF clang 18.1.0
BPF clang 19.1.0
BPF clang 20.1.0
BPF clang 21.1.0
EDG (experimental reflection)
EDG 6.5
EDG 6.5 (GNU mode gcc 13)
EDG 6.6
EDG 6.6 (GNU mode gcc 13)
EDG 6.7
EDG 6.7 (GNU mode gcc 14)
FRC 2019
FRC 2020
FRC 2023
HPPA gcc 14.2.0
HPPA gcc 14.3.0
HPPA gcc 15.1.0
HPPA gcc 15.2.0
KVX ACB 4.1.0 (GCC 7.5.0)
KVX ACB 4.1.0-cd1 (GCC 7.5.0)
KVX ACB 4.10.0 (GCC 10.3.1)
KVX ACB 4.11.1 (GCC 10.3.1)
KVX ACB 4.12.0 (GCC 11.3.0)
KVX ACB 4.2.0 (GCC 7.5.0)
KVX ACB 4.3.0 (GCC 7.5.0)
KVX ACB 4.4.0 (GCC 7.5.0)
KVX ACB 4.6.0 (GCC 9.4.1)
KVX ACB 4.8.0 (GCC 9.4.1)
KVX ACB 4.9.0 (GCC 9.4.1)
KVX ACB 5.0.0 (GCC 12.2.1)
KVX ACB 5.2.0 (GCC 13.2.1)
LoongArch64 clang (trunk)
LoongArch64 clang 17.0.1
LoongArch64 clang 18.1.0
LoongArch64 clang 19.1.0
LoongArch64 clang 20.1.0
LoongArch64 clang 21.1.0
M68K gcc 13.1.0
M68K gcc 13.2.0
M68K gcc 13.3.0
M68K gcc 13.4.0
M68K gcc 14.1.0
M68K gcc 14.2.0
M68K gcc 14.3.0
M68K gcc 15.1.0
M68K gcc 15.2.0
M68k clang (trunk)
MRISC32 gcc (trunk)
MSP430 gcc 4.5.3
MSP430 gcc 5.3.0
MSP430 gcc 6.2.1
MinGW clang 14.0.3
MinGW clang 14.0.6
MinGW clang 15.0.7
MinGW clang 16.0.0
MinGW clang 16.0.2
MinGW gcc 11.3.0
MinGW gcc 12.1.0
MinGW gcc 12.2.0
MinGW gcc 13.1.0
MinGW gcc 14.3.0
MinGW gcc 15.2.0
RISC-V (32-bits) gcc (trunk)
RISC-V (32-bits) gcc 10.2.0
RISC-V (32-bits) gcc 10.3.0
RISC-V (32-bits) gcc 11.2.0
RISC-V (32-bits) gcc 11.3.0
RISC-V (32-bits) gcc 11.4.0
RISC-V (32-bits) gcc 12.1.0
RISC-V (32-bits) gcc 12.2.0
RISC-V (32-bits) gcc 12.3.0
RISC-V (32-bits) gcc 12.4.0
RISC-V (32-bits) gcc 12.5.0
RISC-V (32-bits) gcc 13.1.0
RISC-V (32-bits) gcc 13.2.0
RISC-V (32-bits) gcc 13.3.0
RISC-V (32-bits) gcc 13.4.0
RISC-V (32-bits) gcc 14.1.0
RISC-V (32-bits) gcc 14.2.0
RISC-V (32-bits) gcc 14.3.0
RISC-V (32-bits) gcc 15.1.0
RISC-V (32-bits) gcc 15.2.0
RISC-V (32-bits) gcc 8.2.0
RISC-V (32-bits) gcc 8.5.0
RISC-V (32-bits) gcc 9.4.0
RISC-V (64-bits) gcc (trunk)
RISC-V (64-bits) gcc 10.2.0
RISC-V (64-bits) gcc 10.3.0
RISC-V (64-bits) gcc 11.2.0
RISC-V (64-bits) gcc 11.3.0
RISC-V (64-bits) gcc 11.4.0
RISC-V (64-bits) gcc 12.1.0
RISC-V (64-bits) gcc 12.2.0
RISC-V (64-bits) gcc 12.3.0
RISC-V (64-bits) gcc 12.4.0
RISC-V (64-bits) gcc 12.5.0
RISC-V (64-bits) gcc 13.1.0
RISC-V (64-bits) gcc 13.2.0
RISC-V (64-bits) gcc 13.3.0
RISC-V (64-bits) gcc 13.4.0
RISC-V (64-bits) gcc 14.1.0
RISC-V (64-bits) gcc 14.2.0
RISC-V (64-bits) gcc 14.3.0
RISC-V (64-bits) gcc 15.1.0
RISC-V (64-bits) gcc 15.2.0
RISC-V (64-bits) gcc 8.2.0
RISC-V (64-bits) gcc 8.5.0
RISC-V (64-bits) gcc 9.4.0
RISC-V rv32gc clang (trunk)
RISC-V rv32gc clang 10.0.0
RISC-V rv32gc clang 10.0.1
RISC-V rv32gc clang 11.0.0
RISC-V rv32gc clang 11.0.1
RISC-V rv32gc clang 12.0.0
RISC-V rv32gc clang 12.0.1
RISC-V rv32gc clang 13.0.0
RISC-V rv32gc clang 13.0.1
RISC-V rv32gc clang 14.0.0
RISC-V rv32gc clang 15.0.0
RISC-V rv32gc clang 16.0.0
RISC-V rv32gc clang 17.0.1
RISC-V rv32gc clang 18.1.0
RISC-V rv32gc clang 19.1.0
RISC-V rv32gc clang 20.1.0
RISC-V rv32gc clang 21.1.0
RISC-V rv32gc clang 9.0.0
RISC-V rv32gc clang 9.0.1
RISC-V rv64gc clang (trunk)
RISC-V rv64gc clang 10.0.0
RISC-V rv64gc clang 10.0.1
RISC-V rv64gc clang 11.0.0
RISC-V rv64gc clang 11.0.1
RISC-V rv64gc clang 12.0.0
RISC-V rv64gc clang 12.0.1
RISC-V rv64gc clang 13.0.0
RISC-V rv64gc clang 13.0.1
RISC-V rv64gc clang 14.0.0
RISC-V rv64gc clang 15.0.0
RISC-V rv64gc clang 16.0.0
RISC-V rv64gc clang 17.0.1
RISC-V rv64gc clang 18.1.0
RISC-V rv64gc clang 19.1.0
RISC-V rv64gc clang 20.1.0
RISC-V rv64gc clang 21.1.0
RISC-V rv64gc clang 9.0.0
RISC-V rv64gc clang 9.0.1
Raspbian Buster
Raspbian Stretch
SPARC LEON gcc 12.2.0
SPARC LEON gcc 12.3.0
SPARC LEON gcc 12.4.0
SPARC LEON gcc 12.5.0
SPARC LEON gcc 13.1.0
SPARC LEON gcc 13.2.0
SPARC LEON gcc 13.3.0
SPARC LEON gcc 13.4.0
SPARC LEON gcc 14.1.0
SPARC LEON gcc 14.2.0
SPARC LEON gcc 14.3.0
SPARC LEON gcc 15.1.0
SPARC LEON gcc 15.2.0
SPARC gcc 12.2.0
SPARC gcc 12.3.0
SPARC gcc 12.4.0
SPARC gcc 12.5.0
SPARC gcc 13.1.0
SPARC gcc 13.2.0
SPARC gcc 13.3.0
SPARC gcc 13.4.0
SPARC gcc 14.1.0
SPARC gcc 14.2.0
SPARC gcc 14.3.0
SPARC gcc 15.1.0
SPARC gcc 15.2.0
SPARC64 gcc 12.2.0
SPARC64 gcc 12.3.0
SPARC64 gcc 12.4.0
SPARC64 gcc 12.5.0
SPARC64 gcc 13.1.0
SPARC64 gcc 13.2.0
SPARC64 gcc 13.3.0
SPARC64 gcc 13.4.0
SPARC64 gcc 14.1.0
SPARC64 gcc 14.2.0
SPARC64 gcc 14.3.0
SPARC64 gcc 15.1.0
SPARC64 gcc 15.2.0
TI C6x gcc 12.2.0
TI C6x gcc 12.3.0
TI C6x gcc 12.4.0
TI C6x gcc 12.5.0
TI C6x gcc 13.1.0
TI C6x gcc 13.2.0
TI C6x gcc 13.3.0
TI C6x gcc 13.4.0
TI C6x gcc 14.1.0
TI C6x gcc 14.2.0
TI C6x gcc 14.3.0
TI C6x gcc 15.1.0
TI C6x gcc 15.2.0
TI CL430 21.6.1
Tricore gcc 11.3.0 (EEESlab)
VAX gcc NetBSDELF 10.4.0
VAX gcc NetBSDELF 10.5.0 (Nov 15 03:50:22 2023)
VAX gcc NetBSDELF 12.4.0 (Apr 16 05:27 2025)
WebAssembly clang (trunk)
Xtensa ESP32 gcc 11.2.0 (2022r1)
Xtensa ESP32 gcc 12.2.0 (20230208)
Xtensa ESP32 gcc 14.2.0 (20241119)
Xtensa ESP32 gcc 8.2.0 (2019r2)
Xtensa ESP32 gcc 8.2.0 (2020r1)
Xtensa ESP32 gcc 8.2.0 (2020r2)
Xtensa ESP32 gcc 8.4.0 (2020r3)
Xtensa ESP32 gcc 8.4.0 (2021r1)
Xtensa ESP32 gcc 8.4.0 (2021r2)
Xtensa ESP32-S2 gcc 11.2.0 (2022r1)
Xtensa ESP32-S2 gcc 12.2.0 (20230208)
Xtensa ESP32-S2 gcc 14.2.0 (20241119)
Xtensa ESP32-S2 gcc 8.2.0 (2019r2)
Xtensa ESP32-S2 gcc 8.2.0 (2020r1)
Xtensa ESP32-S2 gcc 8.2.0 (2020r2)
Xtensa ESP32-S2 gcc 8.4.0 (2020r3)
Xtensa ESP32-S2 gcc 8.4.0 (2021r1)
Xtensa ESP32-S2 gcc 8.4.0 (2021r2)
Xtensa ESP32-S3 gcc 11.2.0 (2022r1)
Xtensa ESP32-S3 gcc 12.2.0 (20230208)
Xtensa ESP32-S3 gcc 14.2.0 (20241119)
Xtensa ESP32-S3 gcc 8.4.0 (2020r3)
Xtensa ESP32-S3 gcc 8.4.0 (2021r1)
Xtensa ESP32-S3 gcc 8.4.0 (2021r2)
arm64 msvc v19.20 VS16.0
arm64 msvc v19.21 VS16.1
arm64 msvc v19.22 VS16.2
arm64 msvc v19.23 VS16.3
arm64 msvc v19.24 VS16.4
arm64 msvc v19.25 VS16.5
arm64 msvc v19.27 VS16.7
arm64 msvc v19.28 VS16.8
arm64 msvc v19.28 VS16.9
arm64 msvc v19.29 VS16.10
arm64 msvc v19.29 VS16.11
arm64 msvc v19.30 VS17.0
arm64 msvc v19.31 VS17.1
arm64 msvc v19.32 VS17.2
arm64 msvc v19.33 VS17.3
arm64 msvc v19.34 VS17.4
arm64 msvc v19.35 VS17.5
arm64 msvc v19.36 VS17.6
arm64 msvc v19.37 VS17.7
arm64 msvc v19.38 VS17.8
arm64 msvc v19.39 VS17.9
arm64 msvc v19.40 VS17.10
arm64 msvc v19.41 VS17.11
arm64 msvc v19.42 VS17.12
arm64 msvc v19.43 VS17.13
arm64 msvc v19.latest
armv7-a clang (trunk)
armv7-a clang 10.0.0
armv7-a clang 10.0.1
armv7-a clang 11.0.0
armv7-a clang 11.0.1
armv7-a clang 12.0.0
armv7-a clang 12.0.1
armv7-a clang 13.0.0
armv7-a clang 13.0.1
armv7-a clang 14.0.0
armv7-a clang 15.0.0
armv7-a clang 16.0.0
armv7-a clang 17.0.1
armv7-a clang 18.1.0
armv7-a clang 19.1.0
armv7-a clang 20.1.0
armv7-a clang 21.1.0
armv7-a clang 9.0.0
armv7-a clang 9.0.1
armv8-a clang (all architectural features, trunk)
armv8-a clang (trunk)
armv8-a clang 10.0.0
armv8-a clang 10.0.1
armv8-a clang 11.0.0
armv8-a clang 11.0.1
armv8-a clang 12.0.0
armv8-a clang 13.0.0
armv8-a clang 14.0.0
armv8-a clang 15.0.0
armv8-a clang 16.0.0
armv8-a clang 17.0.1
armv8-a clang 18.1.0
armv8-a clang 19.1.0
armv8-a clang 20.1.0
armv8-a clang 21.1.0
armv8-a clang 9.0.0
armv8-a clang 9.0.1
clad trunk (clang 21.1.0)
clad v1.10 (clang 20.1.0)
clad v1.8 (clang 18.1.0)
clad v1.9 (clang 19.1.0)
clad v2.00 (clang 20.1.0)
clad v2.1 (clang 21.1.0)
clang-cl 18.1.0
ellcc 0.1.33
ellcc 0.1.34
ellcc 2017-07-16
ez80-clang 15.0.0
ez80-clang 15.0.7
hexagon-clang 16.0.5
llvm-mos atari2600-3e
llvm-mos atari2600-4k
llvm-mos atari2600-common
llvm-mos atari5200-supercart
llvm-mos atari8-cart-megacart
llvm-mos atari8-cart-std
llvm-mos atari8-cart-xegs
llvm-mos atari8-common
llvm-mos atari8-dos
llvm-mos c128
llvm-mos c64
llvm-mos commodore
llvm-mos cpm65
llvm-mos cx16
llvm-mos dodo
llvm-mos eater
llvm-mos mega65
llvm-mos nes
llvm-mos nes-action53
llvm-mos nes-cnrom
llvm-mos nes-gtrom
llvm-mos nes-mmc1
llvm-mos nes-mmc3
llvm-mos nes-nrom
llvm-mos nes-unrom
llvm-mos nes-unrom-512
llvm-mos osi-c1p
llvm-mos pce
llvm-mos pce-cd
llvm-mos pce-common
llvm-mos pet
llvm-mos rp6502
llvm-mos rpc8e
llvm-mos supervision
llvm-mos vic20
loongarch64 gcc 12.2.0
loongarch64 gcc 12.3.0
loongarch64 gcc 12.4.0
loongarch64 gcc 12.5.0
loongarch64 gcc 13.1.0
loongarch64 gcc 13.2.0
loongarch64 gcc 13.3.0
loongarch64 gcc 13.4.0
loongarch64 gcc 14.1.0
loongarch64 gcc 14.2.0
loongarch64 gcc 14.3.0
loongarch64 gcc 15.1.0
loongarch64 gcc 15.2.0
mips clang 13.0.0
mips clang 14.0.0
mips clang 15.0.0
mips clang 16.0.0
mips clang 17.0.1
mips clang 18.1.0
mips clang 19.1.0
mips clang 20.1.0
mips clang 21.1.0
mips gcc 11.2.0
mips gcc 12.1.0
mips gcc 12.2.0
mips gcc 12.3.0
mips gcc 12.4.0
mips gcc 12.5.0
mips gcc 13.1.0
mips gcc 13.2.0
mips gcc 13.3.0
mips gcc 13.4.0
mips gcc 14.1.0
mips gcc 14.2.0
mips gcc 14.3.0
mips gcc 15.1.0
mips gcc 15.2.0
mips gcc 4.9.4
mips gcc 5.4
mips gcc 5.5.0
mips gcc 9.3.0 (codescape)
mips gcc 9.5.0
mips64 (el) gcc 12.1.0
mips64 (el) gcc 12.2.0
mips64 (el) gcc 12.3.0
mips64 (el) gcc 12.4.0
mips64 (el) gcc 12.5.0
mips64 (el) gcc 13.1.0
mips64 (el) gcc 13.2.0
mips64 (el) gcc 13.3.0
mips64 (el) gcc 13.4.0
mips64 (el) gcc 14.1.0
mips64 (el) gcc 14.2.0
mips64 (el) gcc 14.3.0
mips64 (el) gcc 15.1.0
mips64 (el) gcc 15.2.0
mips64 (el) gcc 4.9.4
mips64 (el) gcc 5.4.0
mips64 (el) gcc 5.5.0
mips64 (el) gcc 9.5.0
mips64 clang 13.0.0
mips64 clang 14.0.0
mips64 clang 15.0.0
mips64 clang 16.0.0
mips64 clang 17.0.1
mips64 clang 18.1.0
mips64 clang 19.1.0
mips64 clang 20.1.0
mips64 clang 21.1.0
mips64 gcc 11.2.0
mips64 gcc 12.1.0
mips64 gcc 12.2.0
mips64 gcc 12.3.0
mips64 gcc 12.4.0
mips64 gcc 12.5.0
mips64 gcc 13.1.0
mips64 gcc 13.2.0
mips64 gcc 13.3.0
mips64 gcc 13.4.0
mips64 gcc 14.1.0
mips64 gcc 14.2.0
mips64 gcc 14.3.0
mips64 gcc 15.1.0
mips64 gcc 15.2.0
mips64 gcc 4.9.4
mips64 gcc 5.4.0
mips64 gcc 5.5.0
mips64 gcc 9.5.0
mips64el clang 13.0.0
mips64el clang 14.0.0
mips64el clang 15.0.0
mips64el clang 16.0.0
mips64el clang 17.0.1
mips64el clang 18.1.0
mips64el clang 19.1.0
mips64el clang 20.1.0
mips64el clang 21.1.0
mipsel clang 13.0.0
mipsel clang 14.0.0
mipsel clang 15.0.0
mipsel clang 16.0.0
mipsel clang 17.0.1
mipsel clang 18.1.0
mipsel clang 19.1.0
mipsel clang 20.1.0
mipsel clang 21.1.0
mipsel gcc 12.1.0
mipsel gcc 12.2.0
mipsel gcc 12.3.0
mipsel gcc 12.4.0
mipsel gcc 12.5.0
mipsel gcc 13.1.0
mipsel gcc 13.2.0
mipsel gcc 13.3.0
mipsel gcc 13.4.0
mipsel gcc 14.1.0
mipsel gcc 14.2.0
mipsel gcc 14.3.0
mipsel gcc 15.1.0
mipsel gcc 15.2.0
mipsel gcc 4.9.4
mipsel gcc 5.4.0
mipsel gcc 5.5.0
mipsel gcc 9.5.0
nanoMIPS gcc 6.3.0 (mtk)
power gcc 11.2.0
power gcc 12.1.0
power gcc 12.2.0
power gcc 12.3.0
power gcc 12.4.0
power gcc 12.5.0
power gcc 13.1.0
power gcc 13.2.0
power gcc 13.3.0
power gcc 13.4.0
power gcc 14.1.0
power gcc 14.2.0
power gcc 14.3.0
power gcc 15.1.0
power gcc 15.2.0
power gcc 4.8.5
power64 AT12.0 (gcc8)
power64 AT13.0 (gcc9)
power64 gcc 11.2.0
power64 gcc 12.1.0
power64 gcc 12.2.0
power64 gcc 12.3.0
power64 gcc 12.4.0
power64 gcc 12.5.0
power64 gcc 13.1.0
power64 gcc 13.2.0
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Source code
#include <cassert> #include <chrono> #include <iostream> #include <string_view> #include <tuple> #include <variant> #include <vector> #include <ctre.hpp> static constexpr auto input = std::string_view(R"input( acc +3 jmp +599 nop +311 jmp +605 acc -3 acc +50 acc -6 jmp +461 jmp -4 acc -7 jmp +1 acc +19 acc -18 jmp +485 nop +182 jmp +174 acc +41 acc +10 nop +570 jmp +428 acc +18 acc +33 jmp +197 jmp +202 acc +43 acc -19 acc -12 jmp +453 acc +8 jmp +55 acc +5 nop +482 acc -11 jmp +475 acc -5 acc +38 acc -16 nop +111 jmp +230 acc +41 acc -4 jmp +16 nop +147 jmp -15 nop -28 jmp +96 acc +34 acc +27 jmp -25 jmp +8 acc +8 nop +28 jmp +515 jmp +247 jmp +474 nop +392 jmp +57 nop +271 acc +20 jmp +514 acc +22 jmp +337 acc +47 acc +43 acc +42 nop +263 jmp +144 acc +26 acc +49 acc +22 jmp +170 nop +502 acc +26 acc -3 jmp +96 acc -9 nop +213 acc +1 jmp +111 nop +189 jmp +533 acc -18 acc -15 jmp +209 nop +464 jmp +463 acc +16 acc +39 acc +36 jmp +499 acc +42 jmp +1 jmp +444 acc +33 acc -5 nop +513 acc +17 jmp +377 jmp +410 acc -5 jmp +312 jmp +235 acc -4 acc +32 acc +40 jmp +477 jmp +388 jmp +112 acc +45 acc +36 jmp -68 nop +296 jmp +496 acc -19 acc +1 acc -8 jmp +1 jmp +479 jmp +195 acc -13 acc +50 acc +30 jmp +167 jmp +217 acc +17 acc +8 jmp +22 acc +46 acc -5 jmp +53 jmp +152 acc +29 acc +1 acc +24 jmp +278 acc +20 jmp +95 acc +15 jmp +1 acc +36 jmp +286 acc +44 acc +33 jmp +117 acc +12 acc +16 jmp +1 jmp +284 acc -15 nop +478 acc -17 jmp +13 nop +274 nop +217 nop +91 jmp -113 nop -58 acc +11 acc +28 nop +301 jmp +132 acc -7 acc +18 jmp +173 acc +39 nop +435 jmp +388 acc +15 acc +50 jmp +152 acc -8 acc -10 acc +15 acc +39 jmp +166 acc +14 jmp +310 nop +371 acc +26 jmp +161 acc +37 jmp -147 acc -12 acc +37 nop -78 jmp +11 acc +5 nop -130 jmp +182 acc +23 acc +17 jmp -14 acc +42 acc +16 acc +40 jmp -39 nop +325 acc +15 jmp +70 acc +39 acc +13 nop +211 jmp +210 acc -18 nop +384 acc +28 jmp -98 acc +21 acc +12 jmp +217 acc +22 acc +4 acc +12 jmp +421 acc +26 nop +298 acc +1 acc +43 jmp -15 acc +39 nop +217 nop +31 acc +17 jmp -189 jmp -68 acc -14 jmp +287 nop +62 acc +20 acc +50 jmp -5 acc +26 acc -14 acc +24 acc -2 jmp -181 acc +12 nop -89 acc +13 jmp -50 acc +39 jmp +233 nop -214 acc +47 jmp +216 acc +21 acc +30 nop +347 acc +34 jmp -240 nop -196 jmp +345 acc +48 acc +43 acc +4 nop +266 jmp +72 acc +7 acc +43 jmp +1 acc +44 acc +1 acc +21 jmp +358 acc +20 acc +28 acc +48 jmp +266 acc +14 acc +30 jmp +167 nop +18 acc +17 nop +125 acc +14 jmp -111 nop +332 acc -12 nop -177 jmp +355 acc -8 jmp -125 acc +6 jmp -185 nop +270 acc +32 acc +19 acc -9 jmp +339 jmp -13 nop +23 jmp -109 acc -4 acc +23 acc +39 nop +305 jmp +130 nop -57 acc +46 jmp +301 jmp +1 jmp +150 acc -6 nop -184 acc +18 jmp -123 acc +11 acc +40 jmp -304 acc +16 acc +26 nop -307 jmp +3 jmp -194 jmp -224 acc +8 acc +22 acc +1 acc -1 jmp +73 jmp +41 acc +40 jmp +80 acc +0 acc +39 acc +6 acc +45 jmp -186 acc +32 acc -5 jmp -99 acc +47 acc +17 acc +1 acc +0 jmp +265 jmp +264 nop +114 acc +13 jmp -108 nop -278 acc +29 acc -14 jmp -297 acc +20 acc +37 nop +175 acc -4 jmp +9 acc -11 nop +136 acc +2 jmp -37 acc +48 acc +9 acc -7 jmp +36 acc -15 jmp -118 acc -9 jmp -68 acc +26 nop -1 acc +9 jmp -15 acc +21 acc +13 acc -2 acc -17 jmp -365 acc +5 acc +8 jmp +255 acc +16 nop -312 acc -14 jmp -19 acc +32 acc +37 acc +9 jmp +1 jmp -302 jmp +1 acc +5 acc +45 acc +42 jmp +61 acc +20 acc +36 jmp +156 acc -9 jmp +117 acc -1 nop -389 jmp +242 acc +9 acc -18 jmp -5 jmp -77 acc +17 acc +30 jmp +172 acc -1 acc +11 acc -6 jmp -334 jmp +215 acc +3 acc +24 jmp +13 jmp +1 jmp -369 acc +49 acc -6 acc -14 acc -6 jmp -234 acc +13 acc +9 acc +11 nop +78 jmp +115 nop -332 nop +177 jmp +109 jmp +157 nop -372 acc +25 jmp +166 nop +171 jmp -253 acc +27 acc -11 acc -4 acc +34 jmp +98 jmp -240 acc +41 nop -381 acc -4 nop -270 jmp -328 acc +31 acc +11 acc -2 nop -163 jmp +148 jmp +1 nop -91 jmp -197 jmp +132 acc +31 nop +109 acc +43 jmp -319 acc -19 acc +49 acc +38 acc +48 jmp +86 acc -1 acc -11 acc +2 jmp -355 acc -3 acc +11 acc +39 jmp -110 acc +10 nop -465 nop -121 jmp -110 acc +0 jmp -5 nop -278 nop -199 nop +118 acc +6 jmp -47 jmp +129 acc +26 jmp -391 acc -15 acc +8 nop -86 jmp +115 nop -94 acc -7 acc +14 jmp -183 acc -16 acc +15 acc +23 jmp -178 jmp +1 jmp -365 jmp +1 jmp -320 acc +42 nop -289 acc +21 acc -17 jmp -440 acc +0 acc +5 acc +35 acc +20 jmp +29 acc -1 acc +20 acc +44 jmp +50 jmp -61 acc -2 acc +41 acc -5 jmp -410 acc +13 nop -315 acc -2 jmp -46 acc +20 acc +9 acc +38 nop -279 jmp -113 acc +48 jmp +86 jmp -151 jmp +1 acc -18 nop -291 jmp -101 jmp +49 nop -378 jmp -445 acc +36 acc +41 nop -286 acc -19 jmp -142 nop -393 acc +0 acc -3 jmp +10 acc +17 jmp -327 jmp -219 acc -5 nop -123 acc +49 acc +36 jmp -145 jmp -496 jmp +48 acc +10 jmp +11 jmp -97 acc -8 acc +22 jmp +53 jmp -316 acc +32 acc -15 acc +27 acc +33 jmp -266 jmp -10 acc +48 acc -10 acc +7 acc +5 jmp +28 acc -15 acc -19 acc -8 nop -150 jmp -388 acc +14 acc +45 acc -11 jmp -451 acc +42 acc -8 jmp -104 nop -228 acc +0 jmp -327 acc +19 acc -7 jmp +1 jmp -291 acc -8 jmp -495 jmp -61 jmp -392 acc +1 jmp -227 acc -10 jmp -286 jmp -397 jmp -539 jmp -215 acc +15 acc +36 acc -12 acc +5 jmp -147 acc +28 acc -15 acc +19 jmp +16 jmp -493 acc +7 acc +40 acc +23 nop -122 jmp -567 acc -4 acc +23 jmp -218 jmp -13 acc -18 acc -10 acc -13 nop -541 jmp -105 acc +14 acc +40 acc +0 jmp -614 acc +3 acc +14 jmp -357 jmp -510 jmp -416 acc +12 nop -245 acc +26 acc +15 jmp +1 )input"); static constexpr auto test_input = std::string_view(R"input( nop +0 acc +1 jmp +4 acc +3 jmp -3 acc -99 acc +1 jmp -4 acc +6 )input"); ///////////////////////////////////// // Execution state and instructions struct State { int64_t acc = 0; // accumulator int ip = 0; // instruction pointer }; struct nop {int arg;}; void apply(nop, State & state) { ++state.ip; } struct acc {int64_t arg;}; void apply(acc const & op, State & state) { state.acc += op.arg; ++state.ip; } struct jmp {int arg;}; void apply(jmp const & op, State & state) { state.ip += op.arg; } using Instruction = std::variant<nop, acc, jmp>; using Instructions = std::vector<Instruction>; ///////////////////////////////////// // Instructions parser template <typename I> I parse_integer(std::string_view repr) { auto const sign = repr.front(); repr.remove_prefix(1); auto acc = I{}; for (auto c : repr) { acc = acc * 10 + c-'0'; } return sign == '-' ? -acc : acc; } Instructions parse_instructions(std::string_view input) { static constexpr auto pattern = ctll::fixed_string{ // https://regex101.com/r/9Xfv1n/1 "(\\w+)\\s([+\\-]\\d+)"}; Instructions inst; for (auto [all,opcode,operand] : ctre::range<pattern>(input)) { if (opcode.to_view() == "nop") { inst.emplace_back(nop{parse_integer<int>(operand.to_view())}); } else if (opcode.to_view() == "acc") { inst.emplace_back(acc{parse_integer<int64_t>(operand.to_view())}); } else if (opcode.to_view() == "jmp") { inst.emplace_back(jmp{parse_integer<int>(operand.to_view())}); } else { assert(false); } } return inst; } ///////////////////////////////////// // Program execution enum class ErrorCode { FINISHED, // program finished normally ABORTED, // debug_hook return false IP_OUT_OF_BOUNDS // try to read out of instructions vector }; template <typename F> auto execute(Instructions const & instructions, State state, F debug_hook) -> std::tuple<ErrorCode, State> { while(true) { if (state.ip == instructions.size()) { return std::make_tuple(ErrorCode::FINISHED, state); } if (state.ip < 0 || state.ip > instructions.size()) { return std::make_tuple(ErrorCode::IP_OUT_OF_BOUNDS, state); } if (!debug_hook(state)) { return std::make_tuple(ErrorCode::ABORTED, state); } std::visit([&state](auto const & op){apply(op, state);}, instructions.at(state.ip)); } }; ///////////////////////////////////// template<class... Ts> struct overloaded : Ts... { using Ts::operator()...; }; template<class... Ts> overloaded(Ts...) -> overloaded<Ts...>; Instruction swap_nop_and_jmp(Instruction inst) { return std::visit(overloaded{ [](nop op){return Instruction{jmp{op.arg}};}, [](jmp op){return Instruction{nop{op.arg}};}, [](auto op) {assert(false); return Instruction{op};} }, inst); } auto solve() { auto instructions = parse_instructions(input); for (auto & instruction : instructions) { if (std::holds_alternative<acc>(instruction)) continue; // alter program auto const instruction_backup = instruction; instruction = swap_nop_and_jmp(instruction); // execute altered program auto const [ec, state] = execute(instructions, State{}, [executed = std::vector<bool>(instructions.size(), false)](auto const & state) mutable { if (executed.at(state.ip)) return false; // cycle else { executed.at(state.ip) = true; return true; } }); if (ec == ErrorCode::FINISHED) return state.acc; // restore program instruction = instruction_backup; } throw "fail ..."; } int main() { auto const start = std::chrono::high_resolution_clock::now(); auto res = solve(); auto const end = std::chrono::high_resolution_clock::now(); auto const elapsed = std::chrono::nanoseconds(end-start).count(); std::cout << "execution time: " << elapsed << "ns\n"; std::cout << "answer: " << res << "\n"; return 0; }
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