Buggy Robot Gym - 101201B 最短路..

最新推荐文章于 2022-01-06 23:53:49 发布
转载 最新推荐文章于 2022-01-06 23:53:49 发布 · 446 阅读 · 0

本文通过分析一个看似简单的编程题目，探讨了其背后的复杂度。虽然状态数为50*50*50，时间复杂度不高，但实际思考过程却颇具挑战。这反映出面对编程问题时，往往需要更多的实践来提升解决难题的能力。

参考:https://vjudge.net/solution/10899875

居然看起来那么简单..?
分析的话:因为状态数是50*50*50 (地图的大小* 指令最多的长度)
所以其实时间复杂度是不高的..
但是感觉真的难想

看来是题目做的太少嘞..
代码都不敲了

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admin@admin-PC:/tmp/Python-3.11.9$ ./configure \ > --prefix=$HOME/.pyenv/versions/3.11.9 \ > --enable-shared \ > --enable-optimizations \ > --enable-loadable-sqlite-extensions \ > ac_cv_buggy_getaddrinfo=no checking build system type... x86_64-pc-linux-gnu checking host system type... x86_64-pc-linux-gnu checking for Python interpreter freezing... ./_bootstrap_python checking for python3.11... no checking for python3.10... no checking for python3.9... no checking for python3.8... no checking for python3.7... python3.7 checking Python for regen version... Python 3.7.3 checking for pkg-config... /usr/bin/pkg-config checking pkg-config is at least version 0.9.0... yes checking for --enable-universalsdk... no checking for --with-universal-archs... no checking MACHDEP... "linux" checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... configure: error: in `/tmp/Python-3.11.9': configure: error: cannot run C compiled programs. If you meant to cross compile, use `--host'. See `config.log' for more details
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grep -A 20 -B 20 "cannot run C compiled programs" config.log ``` 重点关注： - 测试程序的编译命令 - 执行测试程序时报错信息（如 `exec format error`, `permission denied`） - 是否提示找不到 `./conftest` ...
ild-libiberty-gdbserver/testsuite' make[9]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-libiberty-gdbserver' make[8]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver' /bin/sh ./../regformats/regdat.sh ../regformats/reg-arm.dat reg-arm-generated.c arm-sigmastar-linux-uclibcgnueabihf-g++ -Os -pipe -march=armv7-a -I. -I. -I./../common -I./../regformats -I./.. -I./../../include -I./../gnulib/import -Ibuild-gnulib-gdbserver/import -Wall -Wpointer-arith -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wempty-body -Wunused-but-set-parameter -Wunused-but-set-variable -Wno-sign-compare -Wno-narrowing -Wformat-nonliteral -DGDBSERVER -c -o reg-arm.o -MT reg-arm.o -MMD -MP -MF .deps/reg-arm.Tpo reg-arm-generated.c /bin/sh ./../regformats/regdat.sh ../regformats/arm/arm-with-iwmmxt.dat arm-with-iwmmxt-generated.c arm-sigmastar-linux-uclibcgnueabihf-g++ -Os -pipe -march=armv7-a -I. -I. -I./../common -I./../regformats -I./.. -I./../../include -I./../gnulib/import -Ibuild-gnulib-gdbserver/import -Wall -Wpointer-arith -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wempty-body -Wunused-but-set-parameter -Wunused-but-set-variable -Wno-sign-compare -Wno-narrowing -Wformat-nonliteral -DGDBSERVER -c -o arm-with-iwmmxt.o -MT arm-with-iwmmxt.o -MMD -MP -MF .deps/arm-with-iwmmxt.Tpo arm-with-iwmmxt-generated.c /bin/sh ./../regformats/regdat.sh ../regformats/arm/arm-with-vfpv2.dat arm-with-vfpv2-generated.c arm-sigmastar-linux-uclibcgnueabihf-g++ -Os -pipe -march=armv7-a -I. -I. -I./../common -I./../regformats -I./.. -I./../../include -I./../gnulib/import -Ibuild-gnulib-gdbserver/import -Wall -Wpointer-arith -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wempty-body -Wunused-but-set-parameter -Wunused-but-set-variable -Wno-sign-compare -Wno-narrowing -Wformat-nonliteral -DGDBSERVER -c -o arm-with-vfpv2.o -MT arm-with-vfpv2.o -MMD -MP -MF .deps/arm-with-vfpv2.Tpo arm-with-vfpv2-generated.c /bin/sh ./../regformats/regdat.sh ../regformats/arm/arm-with-vfpv3.dat arm-with-vfpv3-generated.c arm-sigmastar-linux-uclibcgnueabihf-g++ -Os -pipe -march=armv7-a -I. -I. -I./../common -I./../regformats -I./.. -I./../../include -I./../gnulib/import -Ibuild-gnulib-gdbserver/import -Wall -Wpointer-arith -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wempty-body -Wunused-but-set-parameter -Wunused-but-set-variable -Wno-sign-compare -Wno-narrowing -Wformat-nonliteral -DGDBSERVER -c -o arm-with-vfpv3.o -MT arm-with-vfpv3.o -MMD -MP -MF .deps/arm-with-vfpv3.Tpo arm-with-vfpv3-generated.c /bin/sh ./../regformats/regdat.sh ../regformats/arm/arm-with-neon.dat arm-with-neon-generated.c arm-sigmastar-linux-uclibcgnueabihf-g++ -Os -pipe -march=armv7-a -I. -I. -I./../common -I./../regformats -I./.. -I./../../include -I./../gnulib/import -Ibuild-gnulib-gdbserver/import -Wall -Wpointer-arith -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wempty-body -Wunused-but-set-parameter -Wunused-but-set-variable -Wno-sign-compare -Wno-narrowing -Wformat-nonliteral -DGDBSERVER -c -o arm-with-neon.o -MT arm-with-neon.o -MMD -MP -MF .deps/arm-with-neon.Tpo arm-with-neon-generated.c rm -f gdbserver arm-sigmastar-linux-uclibcgnueabihf-g++ -Os -pipe -march=armv7-a -I. -I. -I./../common -I./../regformats -I./.. -I./../../include -I./../gnulib/import -Ibuild-gnulib-gdbserver/import -Wall -Wpointer-arith -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wempty-body -Wunused-but-set-parameter -Wunused-but-set-variable -Wno-sign-compare -Wno-narrowing -Wformat-nonliteral -DGDBSERVER -L/home/x/nm/nvr_2025/torchlight/staging_dir/target-arm-openwrt-linux-uclibcgnueabihf/usr/lib -L/home/x/nm/nvr_2025/torchlight/staging_dir/target-arm-openwrt-linux-uclibcgnueabihf/lib -L/home/x/nm/nvr_2025/torchlight/../sstar931/toolchain//arm-sigmastar-linux-uclibcgnueabihf/sysroot/usr/lib -static-libstdc++ -Wl,--gc-sections -Wl,--dynamic-list=./proc-service.list -o gdbserver agent.o ax.o btrace-common.o buffer.o cleanups.o common-debug.o common-exceptions.o common-regcache.o common-utils.o debug.o dll.o errors.o environ.o event-loop.o fileio.o filestuff.o format.o gdb_vecs.o hostio.o inferiors.o mem-break.o new-op.o notif.o print-utils.o ptid.o regcache.o remote-utils.o rsp-low.o server.o signals.o signals-state-save-restore.o symbol.o target.o tdesc.o tracepoint.o utils.o vec.o version.o waitstatus.o xml-utils.o reg-arm.o arm-with-iwmmxt.o arm-with-vfpv2.o arm-with-vfpv3.o arm-with-neon.o linux-low.o linux-osdata.o linux-procfs.o linux-ptrace.o linux-waitpid.o linux-personality.o linux-namespaces.o linux-arm-low.o linux-aarch32-low.o arm.o arm-linux.o arm-get-next-pcs.o hostio-errno.o thread-db.o proc-service.o posix-strerror.o xml-builtin.o \ build-gnulib-gdbserver/import/libgnu.a build-libiberty-gdbserver/libiberty.a -ldl make[8]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver' make[9]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver' make[10]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver' make[11]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver/import' make all-recursive make[12]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver/import' make[13]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver/import' make[13]: Nothing to be done for 'all-am'. make[13]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver/import' make[12]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver/import' make[11]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver/import' make[10]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver' make[9]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-gnulib-gdbserver' make[9]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-libiberty-gdbserver' make[10]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-libiberty-gdbserver/testsuite' make[10]: Nothing to be done for 'all'. make[10]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-libiberty-gdbserver/testsuite' make[9]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver/build-libiberty-gdbserver' make[8]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver' make[7]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/gdbserver' make[7]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/data-directory' make[7]: Nothing to be done for 'all'. make[7]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/data-directory' make[7]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib' make[8]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib' make[9]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib/import' make all-recursive make[10]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib/import' make[11]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib/import' make[11]: Nothing to be done for 'all-am'. make[11]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib/import' make[10]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib/import' make[9]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib/import' make[8]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib' make[7]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/build-gnulib' make[6]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb' make[6]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb' transformed_name=`t='s&$&&;s&^&&'; \ echo gdb | sed -e "$t"` ; \ if test "x$transformed_name" = x; then \ transformed_name=gdb ; \ else \ true ; \ fi ; \ /bin/sh ./../mkinstalldirs /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/ipkg-install/usr/bin ; \ /usr/bin/install -c gdb \ /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/ipkg-install/usr/bin/$transformed_name ; \ /bin/sh ./../mkinstalldirs /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/ipkg-install/usr/include/gdb ; \ /usr/bin/install -c -m 644 jit-reader.h /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/ipkg-install/usr/include/gdb/jit-reader.h mkdir -p -- /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/ipkg-install/usr/bin mkdir -p -- /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/ipkg-install/usr/include/gdb if test "x1" != x; \ then \ transformed_name=`t='s&$&&;s&^&&'; \ echo gcore | sed -e "$t"` ; \ if test "x$transformed_name" = x; then \ transformed_name=gcore ; \ else \ true ; \ fi ; \ /bin/sh ./../mkinstalldirs /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/ipkg-install/usr/bin ; \ /usr/bin/install -c gcore \ /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/ipkg-install/usr/bin/$transformed_name; \ fi make[7]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb' make[8]: Entering directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/doc' (test "ln -s" = "ln -s" && \ ln -s ./all-cfg.texi gdb-cfg.texi) || \ ln ./all-cfg.texi gdb-cfg.texi || \ cp ./all-cfg.texi gdb-cfg.texi date=`sed -n -e 's/^.* BFD_VERSION_DATE \(.*\)$/\1/p' ./../../bfd/version.h`; \ sed -e "s/DATE/$date/" < ./../version.in > version.subst echo "@set GDBVN `sed q version.subst`" > ./GDBvn.new if [ -n "(GDB) " ]; then \ echo "@set VERSION_PACKAGE (GDB) " >> ./GDBvn.new; \ fi echo "@set BUGURL @uref{http://www.gnu.org/software/gdb/bugs/}" >> ./GDBvn.new if [ "@uref{http://www.gnu.org/software/gdb/bugs/}" = "@uref{http://www.gnu.org/software/gdb/bugs/}" ]; then \ echo "@set BUGURL_DEFAULT" >> ./GDBvn.new; \ fi if test -z ""; then \ echo "@set SYSTEM_READLINE" >> ./GDBvn.new; \ fi if [ -n "" ]; then \ echo "@set SYSTEM_GDBINIT " >> ./GDBvn.new; \ fi mv GDBvn.new GDBvn.texi /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/missing makeinfo --split-size=5000000 -I ./../mi -I . \ -o gdb.info ./gdb.texinfo /home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/missing: line 81: makeinfo: command not found WARNING: 'makeinfo' is missing on your system. You should only need it if you modified a '.texi' file, or any other file indirectly affecting the aspect of the manual. You might want to install the Texinfo package: <http://www.gnu.org/software/texinfo/> The spurious makeinfo call might also be the consequence of using a buggy 'make' (AIX, DU, IRIX), in which case you might want to install GNU make: <http://www.gnu.org/software/make/> Makefile:498: recipe for target 'gdb.info' failed make[8]: *** [gdb.info] Error 127 make[8]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb/doc' Makefile:2310: recipe for target 'subdir_do' failed make[7]: *** [subdir_do] Error 1 make[7]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb' Makefile:2045: recipe for target 'install-only' failed make[6]: *** [install-only] Error 2 make[6]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb' Makefile:2042: recipe for target 'install' failed make[5]: *** [install] Error 2 make[5]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/gdb' Makefile:8821: recipe for target 'install-gdb' failed make[4]: *** [install-gdb] Error 2 make[4]: Leaving directory '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1' Makefile:86: recipe for target '/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/.built' failed make[3]: *** [/home/x/nm/nvr_2025/torchlight/build_dir/target-arm-openwrt-linux-uclibcgnueabihf/gdb-8.0.1/.built] Error 2 make[3]: Leaving directory '/home/x/nm/nvr_2025/torchlight/package/gdb' package/Makefile:105: recipe for target 'package/gdb/compile' failed make[2]: *** [package/gdb/compile] Error 2 make[2]: Leaving directory '/home/x/nm/nvr_2025/torchlight' package/Makefile:101: recipe for target '/home/x/nm/nvr_2025/torchlight/staging_dir/target-arm-openwrt-linux-uclibcgnueabihf/stamp/.package_compile' failed make[1]: *** [/home/x/nm/nvr_2025/torchlight/staging_dir/target-arm-openwrt-linux-uclibcgnueabihf/stamp/.package_compile] Error 2 make[1]: Leaving directory '/home/x/nm/nvr_2025/torchlight' /home/x/nm/nvr_2025/torchlight/include/toplevel.mk:172: recipe for target 'world' failed make: *** [world] Error 2
09-06
我们正在处理构建过程中的两个错误： 1. Subversion客户端未安装（已在前一个问题中解决） 2. makeinfo命令未找到（新出现的错误） 解决方案： 第一步：解决Subversion未安装问题（已解决，但为了完整步骤列出...
ecking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a race-free mkdir -p... /usr/bin/mkdir -p checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking whether make supports nested variables... yes checking build system type... x86_64-pc-linux-gnu checking host system type... x86_64-pc-linux-gnu configure: autobuild project... GNU Autoconf configure: autobuild revision... 2.71 configure: autobuild hostname... admin1-YL-CLU6L-V1 configure: autobuild timestamp... 20251020T062636Z checking for a shell whose -n mode is known to work... /bin/bash checking for characters that cannot appear in file names... none checking whether directories can have trailing spaces... yes checking for expr... /usr/bin/expr checking for GNU M4 that supports accurate traces... configure: error: no acceptable m4 could be found in $PATH. GNU M4 1.4.6 or later is required; 1.4.16 or newer is recommended. GNU M4 1.4.15 uses a buggy replacement strstr on some systems. Glibc 2.9 - 2.12 and GNU M4 1.4.11 - 1.4.15 have another strstr bug.
10-21
我们遇到了在编译tcpslice时缺少GNU M4的问题。错误信息明确指出需要GNU M4 1.4.6或更高版本（推荐1.4.16以上）。下面将提供完整的解决方案。 ### 问题分析 `m4`是一个宏处理器，是GNU构建工具链（Autoconf, ...
E - Buggy Robot
gtuif的博客
02-26 317
Ivan has a robot which is situated on an infinite grid. Initially the robot is standing in the starting cell (0, 0). The robot can process commands. There are four types of commands it can perform: ...
Buggy Robot（Dijkstra + DP）
123
12-20 506
原题链接 参考 题意 思路 dp思路 + dijkstra dp: d[i][j][k]d[i][j][k]d[i][j][k] 表示用前k步时走到 (i，k)(i，k)(i，k) ,最小的修改次数， 下面公式给的都只是一个大概意思，可以这样理解，实际上用优先队列版的Dijkstra时需要写成if判断的形式，判断最小值是否更新再放进队列。 添一步走： d[x + xx[i]][y + yy[i]][k] = min ( d[x
Codeforces 888B Buggy Robot （模拟）
但求心安的博客
11-13 443
#include #include #include #include #include #include void run(std::istream &in, std::ostream &out) { int n; in >> n; std::string s; in >> s; int x = 0; int y = 0; f
Gym 101201B dp
Bahuia的博客
10-13 893
题意：题目链接：http://codeforces.com/gym/101201/attachments 给出一个迷宫，以及一串上下左右的指令，机器人需要按照指令前进，问最少添加以及删除多少指令可以令机器人顺利从起点走到终点。如果机器人顺着指令遇到障碍或者边界，那么自动忽略这条指令留在原地。思路：好题。 dp[i][x][y]表示在前i个指令完成之后，机器人处于(x,y)的最少增加删除代价。
【CF】--Buggy Robot （思维）
Greenary的博客
02-28 593
Buggy Robot Ivan has a robot which is situated on an infinite grid. Initially the robot is standing in the starting cell (0, 0). The robot can process commands. There are four types of commands it c...
dp+bfs Buggy Robot
weixin_30304375的博客
08-15 183
题目链接：https://nanti.jisuanke.com/t/40891 题意： 给你一个地图，机器人从起点到终点按照字符串的指示前进，如果遇到障碍或者出边界就停留在原地，不算违规。 问你最少修改字符串的几个字符，才能让机器人到终点。 分析： 用dp[i][j][k]表示扫描完前k个字符之后，到达地图坐标(i,j)上的最小代价。 把每个状态都依次穷举，加入队列后bfs。...
CodeForces 888B Buggy Robot
这是一个正经的RR 【Seriously
11-19 659
Description： Ivan has a robot which is situated on an infinite grid. Initially the robot is standing in the starting cell (0, 0). The robot can process commands. There are four types of comman
Day4.（每日一题）B. Buggy Robot（C语言）
qq_61953860的博客
01-06 585
#include <stdio.h> int min(int a,int b) { int mmin=a; if(b<mmin) mmin=b; return mmin; } int main() { char s[101]; int n,i,x,y,x1=0,x2=0,y1=0,y2=0; scanf("%d %s",&n,&s); for(i=0;i<n;i++) { if(s[i]=='U') y1++; else if(s...
CodeForces - 888B Buggy Robot
zl_384024097的博客
03-05 350
题目：CodeForces - 888B Buggy Robot（点击即可）解析：一个“U”和一个“D"抵消；          一个 ”L“和一个 ”R "抵消；代码：#include&lt;iostream&gt; #include&lt;cstdio&gt; #include&lt;cstring&gt; #include&lt;algorithm&gt; #include&lt;vecto...
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