Batch behavior parity 3

It gives relatively good results with lesser time, I'll still
try to optmize this algorithm though.

main.cpp

@@ -8,7 +8,7 @@
 #endif
 
 #ifndef ALPHA
-#define ALPHA 0.99
+#define ALPHA 0.999
 #endif
 
 #ifndef TEMP_MIN

run.bat

@@ -1,19 +1,46 @@
-:: Uso: [set EXEC="caminho/do/executavel.exe"] && [set TEST_FOLDER=caminho/dos/casetests] && [set ARGS=ic] && run.bat
+:: Uso: [set EXEC="caminho\do\executavel.exe"]&&[set TEST_FOLDER=caminho\dos\casetests]&&[set ARGS=ic]&&[set SOLUTIONS_FILE=arquivo\de\solucoes.txt]&&run.bat
 @ECHO off
-
+setlocal enabledelayedexpansion
+echo %TIME%
 if not defined EXEC (
-	set EXEC="build/solucao.exe"
+	set EXEC="build\solucao.exe"
 )
 
 if not defined TEST_FOLDER (
-	set TEST_FOLDER=test
+	set TEST_FOLDER=Teste\Casos
+)
+
+if not defined SOLUTIONS_FILE (
+	set SOLUTIONS_FILE=Teste\Solucoes.txt
 )
 
-for %%g in (%TEST_FOLDER%/*) do (
-	echo Arquivo de teste: %TEST_FOLDER%/%%g
 if defined ARGS (
-		%EXEC% -%ARGS% < %TEST_FOLDER%/%%g
+	set ARGS=-%ARGS%
+)
+
+for /f "tokens=1,2 skip=1" %%a in (%SOLUTIONS_FILE%) do (
+	set solutions[%%a]=%%b
+)
+
+for %%g in (%TEST_FOLDER%\*) do (
+	for %%h in (%%g) do set testname=%%~nxh
+	for /f "delims=" %%h in ("!testname!") do set optimal=!solutions[%%h]!
+
+	echo Arquivo de teste: %%g
+	for /f "tokens=4" %%h in ('!EXEC! !ARGS! ^< %%g') do set res=%%h
+	echo Resultado do programa: !res!
+	echo Resultado ótimo:       !optimal!
+	if !res! EQU !optimal! (
+		echo Resultado ótimo^^!
 	) else (
-		%EXEC% < %TEST_FOLDER%/%%g
+		set /a diff= !res!-!optimal!
+		echo Diferença de !diff!
 	)
 )
+echo %TIME%
+endlocal
+set EXEC=
+set TEST_FOLDER=
+set SOLUTIONS_FILE=
+set ARGS=
+goto :eof

run.sh

@@ -10,7 +10,24 @@ if [[ -z $TEST_FOLDER ]]; then
 	TEST_FOLDER="test"
 fi
 
+if [[ -z $SOLUTIONS_FILE ]]; then
+	SOLUTIONS_FILE=solucoes.txt
+fi
+
+declare -A solutions
+while read line; do
+	solutions[$(awk '{print $1}' <<< "$line")]=$(awk '{print $2}' <<< "$line")
+done < "$SOLUTIONS_FILE"
+
 for file in $(find "$TEST_FOLDER" -type f); do
 	echo "Arquivo de teste: $file"
-	"$EXEC" < "$file"
+	res=$("$EXEC" -i -c < "$file" | awk '{print $4}')
+	optimal=${solutions[$(basename "$file")]}
+	echo "Resultado do programa: ${res}"
+	echo "Resultado ótimo:       ${optimal}"
+	if [[ $res = $optimal ]]; then
+		echo "Resultado ótimo!"
+	else
+		echo "Diferença de $(bc <<< "${res} - ${optimal}")"
+	fi
 done

sa.cpp

@@ -21,13 +21,12 @@ auto sa::solution::simulated_annealing(int capacity, const std::vector<long long
 
 		int diff = neighbor.fitness - prev.fitness;
 		if (diff <= 0 || std::exp(-diff / temp) > rand(eng)) {
-			prev.swap(neighbor);
+			swap(prev, neighbor);
 		}
 
 		temp *= alpha;
 
 		if (prev.fitness < best.fitness) {
-			std::cout << prev.fitness << ' ' << best.fitness << '\n';
 			best = prev;
 		}
 	}

sa.hpp

@@ -1,54 +1,145 @@
 #ifndef SIMULATED_ANNEALING_HEADER_12647_H
 #define SIMULATED_ANNEALING_HEADER_12647_H
+
 #define SIMULATED_ANNEALING_DISABLE_SHOWCRATES 1
 #define SIMULATED_ANNEALING_DISABLE_SHOWITRNUM 2
 
 #include <algorithm>
 #include <iostream>
-#include <queue>
 #include <random>
-#include <vector>
 #include <set>
+#include <utility>
+#include <vector>
+#include <queue>
 
 namespace sa {
 
+using content = std::priority_queue<long long, std::vector<long long>, std::greater<>>;
+
+class box {
+	content items;
+	long long fullness{};
+
+	friend void swap(box &one, box &two) {
+		using std::swap;
+
+		swap(one.items, two.items);
+		swap(one.fullness, two.fullness);
+	}
+
+	void pop() {
+		fullness -= items.top();
+		items.pop();
+	}
+
+	public:
+
+	box() = default;
+
+	box(const content &items, long long fullness):
+	    items(items), fullness(fullness) {}
+
+	void add_item(long long item) {
+		fullness += item;
+		items.push(item);
+	}
+
+	void clear() {
+		while (!items.empty()) {
+			items.pop();
+		}
+		fullness = 0;
+	}
+
+	auto swappable10(box &other, int capacity) -> bool {
+		return items.top() + other.fullness <= capacity;
+	}
+
+	void swap10(box &other) {
+		other.add_item(items.top());
+		pop(); 
+	}
+
+	auto swappable11(box &other, int capacity) -> bool {
+		long long choice1 = items.top();
+		long long choice2 = other.items.top();
+		return choice1 + other.fullness - choice2 <= capacity &&
+		       choice2 + fullness - choice1 <= capacity;
+	}
+
+	void swap11(box &other) {
+		long long choice1 = items.top();
+		long long choice2 = other.items.top();
+
+		pop();
+		other.pop();
+		add_item(choice2);
+		other.add_item(choice1);
+	}
+
+	void print(int ind) {
+		std::cout << "Caixa " << ind << ":";
+		content tmp;
+		while (!items.empty()) {
+			std::cout << ' ' << items.top();
+			items.pop();
+		}
+		std::cout << '\n';
+	}
+
+	[[nodiscard]] auto empty() const -> bool {
+		return fullness == 0;
+	}
+};
+
 class solution {
-	std::vector<long long> items;
+	std::vector<box> boxes;
 	std::default_random_engine gen;
 	int capacity;
 	int fitness;
 	int iterations;
 	int iteration;
 
-	auto calculate_boxes()->int {
+	friend void swap(solution &one, solution &two) {
-		int count = 1;
+		using std::swap;
-		long long now = 0;
 
-		for (auto i : items) {
+		swap(one.boxes, two.boxes);
-			if (now + i > capacity) {
+		swap(one.gen, two.gen);
-				count++;
+		swap(one.capacity, two.capacity);
-				now = i;
+		swap(one.fitness, two.fitness);
-				continue;
+		swap(one.iterations, two.iterations);
-			}
+		swap(one.iteration, two.iteration);
-			now += i;
 	}
 
-		return count;
+	void random_swap(int choice, std::vector<int> &sequence10, std::vector<int> &sequence11) {
+		typedef void (box::*swap)(box&);
+		swap swaps[2] = {
+			&box::swap10,
+			&box::swap11
+		};
+		std::vector<int>* sequences[2] = {
+			&sequence10,
+			&sequence11
+		};
+
+		std::uniform_real_distribution<> rand(0, 1);
+		int now = rand(gen) > 0.3 ? 0 : 1;
+
+		if (sequences[now]->empty()) {
+			now ^= 1;
+			if (sequences[now]->empty()) {
+				return;
+			}
 		}
 
-	static void print_box(int box, std::queue<long long> &stored) {
+		std::uniform_int_distribution<> dist(0, (int)sequences[now]->size() - 1);
-		std::cout << "Caixa " << box << ":";
+		(boxes[choice].*swaps[now])(boxes[(*sequences[now])[dist(gen)]]);
-		while (!stored.empty()) {
-			std::cout << ' ' << stored.front();
-			stored.pop();
-		}
-		std::cout << '\n';
 	}
 
 	public:
 	solution() = default;
 
-	solution(const solution &other, int itr): items(other.items), gen(other.gen),
+	solution(const solution &other, int itr): boxes(other.boxes), gen(other.gen),
 	                                          capacity(other.capacity), fitness(other.fitness),
 	                                          iteration(itr) {}
 
@@ -60,10 +151,8 @@ class solution {
 			its.insert(i);
 		}
 
-			 this->items.resize(items.size());
-			 size_t i = 0;
-
 		long long cap = capacity;
+		box tmp;
 
 		while (!its.empty()) {
 			auto itr = its.upper_bound(cap);
@@ -71,43 +160,60 @@ class solution {
 	        		cap = capacity;
 	        		cap -= *its.begin();
 	        		itr = its.begin();
+	        		this->boxes.emplace_back(tmp);
+	        		tmp.clear();
 			} else {
 				itr--;
 				cap -= *itr;
 			}
-				this->items[i] = *itr;
+			tmp.add_item(*itr);
 			its.erase(itr);
-				i++;
 		}
 
-			fitness = calculate_boxes();
+		if (!tmp.empty()) {
+			this->boxes.emplace_back(tmp);
+		}
+		fitness = (int)this->boxes.size();
 	}
 
 	void setneighbor() { // Gera um vizinho da solução
-		std::uniform_int_distribution<> dist(0, items.size() - 1);
+		int choice = std::uniform_int_distribution<>(0, (int)boxes.size() - 1)(gen);
-		int first = dist(gen);
+		std::vector<int> sequence10;
-		int second = 0;
+		std::vector<int> sequence11;
-		while ((second = dist(gen)) == first) {}
 
-		std::swap(items[first], items[second]);
+		sequence10.reserve(boxes.size());
-		fitness = calculate_boxes();
+		sequence11.reserve(boxes.size());
+
+		for (size_t i = 0; i < choice; i++) {
+			if (boxes[choice].swappable10(boxes[i], capacity)) {
+				sequence10.push_back((int)i);
+			}
+			if (boxes[choice].swappable11(boxes[i], capacity)) {
+				sequence11.push_back((int)i);
+			}
+		}
+		for (size_t i = choice + 1; i < boxes.size(); i++) {
+			if (boxes[choice].swappable10(boxes[i], capacity)) {
+				sequence10.push_back((int)i);
+			}
+			if (boxes[choice].swappable11(boxes[i], capacity)) {
+				sequence11.push_back((int)i);
+			}
+		}
+
+		random_swap(choice, sequence10, sequence11);
+		if (boxes[choice].empty()) {
+			swap(boxes[choice], boxes[boxes.size() - 1]);
+			boxes.pop_back();
+			fitness = (int)boxes.size();
+		}
 	}
 
 	void randomize() {
-		std::shuffle(items.begin(), items.end(), gen);
+		std::shuffle(boxes.begin(), boxes.end(), gen);
-
-		fitness = calculate_boxes();
 	}
 
-	void swap(solution &other) {
+	void print_sol(char flags = 0) {
-		std::swap(fitness, other.fitness);
-		std::swap(items, other.items);
-		std::swap(capacity, other.capacity);
-		std::swap(gen, other.gen);
-		std::swap(iteration, other.iteration);
-	}
-
-	void print_sol(char flags = 0) const {
 		if(!(flags & SIMULATED_ANNEALING_DISABLE_SHOWITRNUM)){
 			std::cout << "Iteração da solução: " << iteration << '\n';
 			std::cout << "Número de iterações calculadas: " << iterations << '\n';
@@ -115,23 +221,9 @@ class solution {
 		std::cout << "Número de caixas: " << fitness << '\n';
 
 		if(!(flags & SIMULATED_ANNEALING_DISABLE_SHOWCRATES)){
-			int box_now = 1;
+			for (size_t i = 0; i < boxes.size(); i++) {
-			long long now = 0;
+				boxes[i].print((int)i + 1);
-			std::queue<long long> items_stored;
-
-			for (auto i : items) {
-				if (now + i > capacity) {
-					print_box(box_now, items_stored);
-					box_now++;
-					now = i;
-				} else {
-					now += i;
 			}
-				items_stored.push(i);
-			}
-
-			print_box(box_now, items_stored);
-			std::cout << '\n';
 		}
 	}