update

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"