diff options
| -rw-r--r-- | 1679/header.hpp | 4 | ||||
| -rw-r--r-- | 1679/main.cpp | 50 | ||||
| -rw-r--r-- | 1679/makefile | 238 |
3 files changed, 292 insertions, 0 deletions
diff --git a/1679/header.hpp b/1679/header.hpp new file mode 100644 index 0000000..2df2a5a --- /dev/null +++ b/1679/header.hpp @@ -0,0 +1,4 @@ + +#include <iostream> +#include <string> +#include <vector> diff --git a/1679/main.cpp b/1679/main.cpp new file mode 100644 index 0000000..0d33152 --- /dev/null +++ b/1679/main.cpp @@ -0,0 +1,50 @@ + +#include "header.hpp" +#include <unordered_map> + +class Solution { +public: + static int maxOperations(std::vector<int> &nums, int k) { + int result = 0; + std::unordered_map<int, int> dict; + for (auto &iter : nums) { + if (dict.find(iter) != dict.end()) { + dict[iter]++; + } else { + dict.insert(std::make_pair(iter, 1)); + } + } + for (auto &iter : dict) { + if (k > iter.first) { + if (dict.find(k - iter.first) != dict.end()) { + if (k - iter.first == iter.first) { + result = result + int(iter.second / 2); + } else { + auto dec = std::min(dict[iter.first], dict[k - iter.first]); + result = result + dec; + dict[iter.first] -= dec; + dict[k - iter.first] -= dec; + } + } + } + } + return result; + } +}; + +int main(int argc, char **argv) { + std::vector<int> num1 = {1, 2, 3, 4}; + std::vector<int> num2 = {3, 1, 3, 4, 3}; + std::vector<int> num3 = {2, 2, 2, 3, 1, 1, 4, 1}; + std::vector<int> num4 = {3, 5, 1, 5}; + std::vector<int> num5 = {2, 5, 4, 4, 1, 3, 4, 4, 1, 4, + 4, 1, 2, 1, 2, 2, 3, 2, 4, 2}; + + std::cout << Solution::maxOperations(num1, 5) << std::endl; // 2 + std::cout << Solution::maxOperations(num2, 6) << std::endl; // 1 + std::cout << Solution::maxOperations(num3, 4) << std::endl; // 2 + std::cout << Solution::maxOperations(num4, 2) << std::endl; // 0 + std::cout << Solution::maxOperations(num5, 3) << std::endl; // 4 + + return 0; +} diff --git a/1679/makefile b/1679/makefile new file mode 100644 index 0000000..82f045c --- /dev/null +++ b/1679/makefile @@ -0,0 +1,238 @@ +TARGET?=main +SHELL=bash +SHELL?=bash +CXX=clang++ +CXX?=clang++ +ifdef OS +CXX_FLAGS=-std=c++20 +else +CXX_FLAGS=-std=c++20 -fpic +endif +CXX_EXTRA?= +CTAGS_I_PATH?=./ +LD_FLAGS= -include-pch header.hpp.gch +EXTRA_LD_FLAGS?= +ADD_SANITIZERS_CC= -g -fsanitize=address -fno-omit-frame-pointer +ADD_SANITIZERS_LD= -g -fsanitize=address +MEM_SANITIZERS_CC= -g -fsanitize=memory -fno-omit-frame-pointer +MEM_SANITIZERS_LD= -g -fsanitize=memory +UB_SANITIZERS_CC= -g -fsanitize=undefined -fno-omit-frame-pointer +UB_SANITIZERS_LD= -g -fsanitize=undefined +FUZZ_SANITIZERS_CC= -fsanitize=fuzzer,address -g -fno-omit-frame-pointer +FUZZ_SANITIZERS_LD= -fsanitize=fuzzer,address -g -fno-omit-frame-pointer +COV_CXX= -fprofile-instr-generate -fcoverage-mapping +COV_LD= -fprofile-instr-generate +# BUILD_MODES are=RELEASE(default), DEBUG,ADDSAN,MEMSAN,UBSAN,FUZZ +BUILD_MODE?=RELEASE +#EXCLUSION_LIST='(\bdip)|(\bdim)' +EXCLUSION_LIST='xxxxxx' +OBJ_LIST:=$(patsubst %.cpp, %.o, $(shell find . -name '*.cpp' | grep -Ev $(EXCLUSION_LIST))) +OBJ_COV_LIST:=$(patsubst %.cpp, %.ocov, $(shell find . -name '*.cpp' | grep -Ev $(EXCLUSION_LIST))) +OBJ_DBG_LIST:=$(patsubst %.cpp, %.odbg, $(shell find . -name '*.cpp' | grep -Ev $(EXCLUSION_LIST))) +ASM_LIST:=$(patsubst %.cpp, %.s, $(shell find . -name '*.cpp' | grep -Ev $(EXCLUSION_LIST))) +WASM_LIST:=$(patsubst %.cpp, %.wasm, $(shell find . -name '*.cpp' | grep -Ev $(EXCLUSION_LIST))) +WAST_LIST:=$(patsubst %.cpp, %.wast, $(shell find . -name '*.cpp' | grep -Ev $(EXCLUSION_LIST))) +IR_LIST:=$(patsubst %.cpp, %.ir, $(shell find . -name '*.cpp' | grep -Ev $(EXCLUSION_LIST))) +JS_LIST:=$(patsubst %.cpp, %.js, $(shell find . -name '*.cpp' | grep -Ev $(EXCLUSION_LIST))) +AST_LIST:=$(patsubst %.cpp, %.ast, $(shell find . -name '*.cpp' | grep -Ev $(EXCLUSION_LIST))) + +ifeq ($(BUILD_MODE), ADDSAN) +ifeq ($(CXX), g++) +$(error This build mode is only useable with clang++.) +endif +CXX_EXTRA+=$(ADD_SANITIZERS_CC) +EXTRA_LD_FLAGS+=$(ADD_SANITIZERS_LD) +endif + +ifeq ($(BUILD_MODE), MEMSAN) +ifeq ($(CXX), g++) +$(error This build mode is only useable with clang++.) +endif +CXX_EXTRA+=$(MEM_SANITIZERS_CC) +EXTRA_LD_FLAGS+=$(MEM_SANITIZERS_LD) +endif + +ifeq ($(BUILD_MODE), UBSAN) +ifeq ($(CXX), g++) +$(error This build mode is only useable with clang++.) +endif +CXX_EXTRA+=$(UB_SANITIZERS_CC) +EXTRA_LD_FLAGS+=$(UB_SANITIZERS_LD) +endif + +ifeq ($(BUILD_MODE), FUZZ) +ifeq ($(CXX), g++) +$(error This build mode is only useable with clang++.) +endif +CXX_EXTRA+=$(FUZZ_SANITIZERS_CC) +EXTRA_LD_FLAGS+=$(FUZZ_SANITIZERS_LD) +endif + +SRCS:=$(wildcard *.cpp) +HDRS:=$(wildcard *.h) +CXX_FLAGS+=$(CXX_EXTRA) +LD_FLAGS+=$(EXTRA_LD_FLAGS) + +.DEFAULT:all + +.PHONY:all clean help ASM SO TAGS WASM JS exe IR WAST A ADBG AST cppcheck DOCKER + +all:exe + +everything:$(TARGET) A ASM SO $(TARGET)-static $(TARGET)-dbg ADBG TAGS $(TARGET)-cov WASM JS IR WAST AST DOCKER + +depend:.depend + +.depend:$(SRCS) + rm -rf .depend + $(CXX) -MM $(CXX_FLAGS) $^ > ./.depend + echo $(patsubst %.o:, %.odbg:, $(shell $(CXX) -MM $(CXX_FLAGS) $^)) | sed -r 's/[A-Za-z0-9\-\_]+\.odbg/\n&/g' >> ./.depend + echo $(patsubst %.o:, %.ocov:, $(shell $(CXX) -MM $(CXX_FLAGS) $^)) | sed -r 's/[A-Za-z0-9\-\_]+\.ocov/\n&/g' >> ./.depend + +-include ./.depend + +.cpp.o: header.hpp.gch + $(CXX) $(CXX_FLAGS) -c $< -o $@ + +%.odbg:%.cpp + $(CXX) $(CXX_FLAGS) -g -c $< -o $@ + +%.ocov:%.cpp + $(CXX) $(CXX_FLAGS) $(COV_CXX) -c $< -o $@ + +header.hpp.gch:header.hpp + $(CXX) $(CXX_FLAGS) -c $< -o $@ + +exe: header.hpp.gch $(TARGET) + +$(TARGET): $(OBJ_LIST) + $(CXX) $(LD_FLAGS) $^ -o $@ + +$(TARGET)-static: $(OBJ_LIST) + $(CXX) $(LD_FLAGS) $^ -static -o $@ + +$(TARGET)-dbg: $(OBJ_DBG_LIST) + $(CXX) $(LD_FLAGS) $^ -g -o $@ + +$(TARGET)-cov: $(OBJ_COV_LIST) + $(CXX) $(LD_FLAGS) $^ $(COV_LD) -o $@ + +cov: runcov + @llvm-profdata merge -sparse ./default.profraw -o ./default.profdata + @llvm-cov show $(TARGET)-cov -instr-profile=default.profdata + +covrep: runcov + @llvm-profdata merge -sparse ./default.profraw -o ./default.profdata + @llvm-cov report $(TARGET)-cov -instr-profile=default.profdata + +ASM:$(ASM_LIST) + +SO:$(TARGET).so + +A:$(TARGET).a + +ADBG:$(TARGET).adbg + +IR:$(IR_LIST) + +WASM:$(WASM_LIST) + +WAST:$(WAST_LIST) + +JS:$(JS_LIST) + +AST:$(AST_LIST) + +TAGS:tags + +#https://github.com/rizsotto/Bear +BEAR: clean + bear make + +tags:$(SRCS) + $(shell $(CXX) -c -I $(CTAGS_I_PATH) -M $(SRCS)|\ + sed -e 's/[\\ ]/\n/g'|sed -e '/^$$/d' -e '/\.o:[ \t]*$$/d'|\ + ctags -L - --c++-kinds=+p --fields=+iaS --extra=+q) + +%.s: %.cpp + $(CXX) -S $< -o $@ + # objdump -r -d -M intel -S $< > $@ + +%.ir: %.cpp + $(CXX) -emit-llvm -S -o $@ $< + +%.wasm: %.cpp + em++ $< -o $@ + +%.wast: %.wasm + wasm2wat $< > $@ + +%.js: %.cpp + em++ $< -s FORCE_FILESYSTEM=1 -s EXIT_RUNTIME=1 -o $@ + +%.ast: %.cpp + $(CXX) -Xclang -ast-dump -fsyntax-only $< > $@ + +$(TARGET).so: $(OBJ_LIST) + $(CXX) $(LD_FLAGS) $^ -shared -o $@ + +$(TARGET).a: $(OBJ_LIST) + ar rcs $(TARGET).a $(OBJ_LIST) + +$(TARGET).adbg: $(OBJ_DBG_LIST) + ar rcs $(TARGET).adbg $(OBJ_DBG_LIST) + +runcov: $(TARGET)-cov + "./$(TARGET)-cov" + +test: $(TARGET) + "./$(TARGET)" + +run: $(TARGET) + "./$(TARGET)" + +valgrind: $(TARGET) + - valgrind --track-origins=yes --leak-check=full --show-leak-kinds=all "./$(TARGET)" + +cppcheck: + cppcheck $(SRCS) + +rundbg: $(TARGET)-dbg + gdb --batch --command=./debug.dbg --args "./$(TARGET)-dbg" + +format: + - clang-format -i $(SRCS) $(HDRS) + +DOCKER: Dockerfile + docker buld -t proto ./ + +clean: + - rm -f *.o *.dis *.odbg *.ocov *.js *.ir *~ $(TARGET) $(TARGET).so $(TARGET)-static \ + $(TARGET)-dbg $(TARGET).a $(TARGET)-cov *.wasm *.wast $(TARGET).adbg *.ast + +deepclean: clean + - rm tags + - rm .depend + - rm ./default.profraw ./default.profdata + - rm vgcore.* + - rm compile_commands.json + - rm *.gch + +help: + @echo "--all is the default target, runs $(TARGET) target" + @echo "--everything will build everything" + @echo "--SO will generate the so" + @echo "--ASM will generate assembly files" + @echo "--TAGS will generate tags file" + @echo "--BEAR will generate a compilation database" + @echo "--IR will generate llvm IR" + @echo "--$(TARGET) builds the dynamically-linked executable" + @echo "--$(TARGET)-dbg will generate the debug build. BUILD_MODE should be set to DEBUG to work" + @echo "--$(TARGET)-static will statically link the executable to the libraries" + @echo "--$(TARGET)-cov is the coverage build" + @echo "--cov will print the coverage report" + @echo "--covrep will print the line coverage report" + @echo "--A will build the static library" + @echo "--TAGS will build the tags file" + @echo "--clean" + @echo "--deepclean will clean almost everything" |