Initial commit

2019/republic/11_d1/bare.cpp

@@ -0,0 +1,87 @@
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <set>
+#include <algorithm>
+#include <unordered_map>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+int getMinRest(int L, int lengths[], int K) {
+	for (int i = 0; i < K; i++) {
+		if (L % lengths[i] == 0) {
+			return 0;
+		}
+	}
+
+	sort(lengths, lengths + K);
+	for (int i = 1; i < K; i++) {
+		if (lengths[i] - lengths[i - 1] == 1 && lengths[i] * lengths[i - 1] < L) {
+			return 0;
+		}
+	}
+
+	if (K < 2) {
+		return L % lengths[0];
+	}
+
+
+	set<int> processed_lengths;
+	set<int> new_lengths;
+	unordered_map<int, bool> detected_lengths;
+
+	for (int i = 0; i < K; i++) {
+		processed_lengths.insert(lengths[i]);
+		new_lengths.insert(lengths[i]);
+		detected_lengths[lengths[i]] = true;
+	}
+
+	while (true) {
+		// cout << "Processed: " << processed_lengths.size() << "; New: " << new_lengths.size() << endl;
+		set<int> found_lengths;
+
+		for (auto i: processed_lengths) {
+			for (auto j: new_lengths) {
+				int new_len = i + j;
+				if (new_len <= L && detected_lengths[new_len] == false) {
+					found_lengths.insert(new_len);
+					detected_lengths[new_len] = true;
+				}
+			}
+		}
+
+		processed_lengths.insert(new_lengths.begin(), new_lengths.end());
+		if (found_lengths.size() == 0) {
+			break;
+		}
+		new_lengths = found_lengths;
+	}
+
+	auto m = processed_lengths.end();
+	m--;
+	return L - *m;
+}
+
+
+
+int main() {
+	input_stream.open("input.txt");
+
+	int L, K;
+	input_stream >> L;
+	input_stream >> K;
+
+	int lengths[K];
+	for (int i = 0; i < K; i++) {
+		input_stream >> lengths[i];
+	}
+
+	cout << getMinRest(L, lengths, K) << endl;
+
+	input_stream.close();
+	return 0;
+}

2019/republic/11_d1/sobol.cpp

@@ -0,0 +1,111 @@
+#include <iostream>
+#include <fstream>
+#include <unordered_map>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+struct Node {
+public:
+	uint32_t number;
+	Node *left, *right;
+
+	Node(uint32_t n):number(n) {
+	}
+
+	Node(): number(0) {
+	}
+};
+
+
+bool locateLeftmostNode (Node *node, uint32_t level, uint32_t targetLevel) {
+	if (level == targetLevel) {
+		cout << node -> number << " ";
+		return 1;
+	} else { 
+		// Search left. If unsuccessfull, search through right
+		if (node -> left != nullptr) {
+			if (locateLeftmostNode(node -> left, level + 1, targetLevel)) {
+				return 1;
+			}
+		}
+
+		// Search right. If unsuccessful, this should return 0
+		if (node -> right != nullptr) {
+			return locateLeftmostNode(node -> right, level + 1, targetLevel);
+		}
+
+		// Previous searches didn't return anything, meaning node has no children. Return 0
+		return 0;
+	}
+}
+
+
+bool locateRightmostNode (Node *node, uint32_t level, uint32_t targetLevel) {
+	if (level == targetLevel) {
+		cout << node -> number << endl;
+		return 1;
+	} else { 
+		// Search right. If unsuccessfull, search through left
+		if (node -> right != nullptr) {
+			if (locateRightmostNode(node -> right, level + 1, targetLevel)) {
+				return 1;
+			}
+		}
+
+		// Search left. If unsuccessful, this should return 0
+		if (node -> left != nullptr) {
+			return locateRightmostNode(node -> left, level + 1, targetLevel);
+		}
+
+		// Previous searches didn't return anything, meaning node has no children. Return 0
+		return 0;
+	}
+}
+
+
+int main() {
+	input_stream.open("input.txt");
+
+	uint32_t N;
+	uint16_t K;
+	input_stream >> N;
+	input_stream >> K;
+
+	unordered_map<uint32_t, Node*> orphanNodes;
+	Node *nodes[N];
+
+	for (uint32_t i = 0; i < N; i++) {
+		nodes[i] = new Node(i + 1);
+		orphanNodes[i + 1] = nodes[i];
+	}
+
+	for (uint32_t i = 0; i < (N - 1); i++) {
+		uint32_t parentId, childId;
+		char direction;
+
+		input_stream >> parentId;
+		input_stream >> childId;
+		input_stream >> direction;
+
+		// Remove orphan mark from child
+		orphanNodes.erase(childId);
+
+		// Assign child to parent
+		if(direction == 'S') {
+			nodes[parentId - 1] -> left = nodes[childId - 1];
+		} else {
+			nodes[parentId - 1] -> right = nodes[childId - 1];
+		}
+	}
+
+	Node *rootNode = orphanNodes.begin() -> second;
+	locateLeftmostNode(rootNode, 0, K);
+	locateRightmostNode(rootNode, 0, K);
+
+	input_stream.close();
+	return 0;
+}

2019/republic/11_d1/unsolved_arena.cpp

@@ -0,0 +1,60 @@
+#include <iostream>
+#include <fstream>
+#include <cmath>
+
+using namespace std;
+
+
+ifstream input_stream;
+
+
+struct Point
+{
+	double x;
+	double y;
+	Point(double i, double j): x(i), y(j) {
+
+	}
+};
+
+
+double getDistance(Point *p1, Point *p2) {
+	double x_distance = abs(p1 -> x - p2 -> x);
+	double y_distance = abs(p1 -> y - p2 -> y);
+	return pow(x_distance, 2) + pow(y_distance, 2);
+}
+
+
+
+uint16_t findSides(Point *points[3]) {
+	double d1 = getDistance(points[0], points[1]);
+	double d2 = getDistance(points[0], points[2]);
+	double d3 = getDistance(points[1], points[2]);
+
+	if (d1 == d2 && d1 == d3) {
+		return 3;
+	}
+
+	return 1;
+}
+
+
+
+int main() {
+	input_stream.open("input.txt");
+
+	Point *points[3];
+
+	for (uint8_t i = 0; i < 3; i++) {
+		double tmp_x, tmp_y;
+		input_stream >> tmp_x;
+		input_stream >> tmp_y;
+
+		points[i] = new Point(tmp_x, tmp_y);
+	}
+
+	cout << findSides(points) << endl;
+
+	input_stream.close();
+	return 0;
+}

2019/republic/11_d2/bacterii.cpp

@@ -0,0 +1,58 @@
+#include <iostream>
+#include <fstream>
+#include <deque>
+#include <numeric>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+uint64_t dequeSum(deque<uint64_t> &d) {
+	return accumulate(d.begin(), d.end(), 0);
+}
+
+int main() {
+	input_stream.open("input.txt");
+	output_stream.open("output.txt");
+
+	uint16_t P, T, N;
+	input_stream >> P;
+	input_stream >> T;
+	input_stream >> N;
+
+	deque<uint64_t> bacteria;
+	bacteria.push_front(P);
+
+	uint16_t i;
+	uint64_t mature = 0;
+
+	// Populate list until death of first generation
+	for (i=1; i < T && i <= N; i++) {
+		// Reproduction
+		bacteria.push_front(mature);
+
+		// Maturity
+		mature += bacteria[1];
+	}
+
+	// Run loop considering death until experiment is complete
+	for(i; i <= N; i++) {
+		// Reproduction
+		bacteria.push_front(mature);
+
+		// Death
+		mature -= bacteria.back();
+		bacteria.pop_back();
+
+		// Maturity
+		mature += bacteria[1];
+	}
+
+	output_stream << dequeSum(bacteria) << endl;
+
+	input_stream.close();
+	output_stream.close();
+	return 0;
+}

2019/republic/11_d2/experimente.cpp

@@ -0,0 +1,152 @@
+#include <iostream>
+#include <fstream>
+#include <set>
+#include <algorithm>
+#include <vector>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+int matchCode(string code1, string code2) {
+	int match = 0;
+	const int lim = min(code1.length(), code2.length());
+	for (int i = 0; i < lim; i++) {
+		if (code1[i] == code2[i]) {
+			match++;
+		}
+	}
+
+	return match;
+}
+
+
+void task1() {
+	uint16_t n;
+	input_stream >> n;
+
+	uint16_t m;
+	input_stream >> m;
+
+	uint16_t G;
+	input_stream >> G;
+
+	string monea_code;
+	input_stream >> monea_code;
+
+	int16_t best_match = -1;
+	vector<string> matches;
+	matches.reserve(m * n);
+
+	for (uint16_t y = 0; y < n; y++) {
+		for (uint16_t x = 0; x < m; x++) {
+			string cat_code;
+			input_stream >> cat_code;
+
+			uint8_t match = matchCode(monea_code, cat_code);
+
+			if (match > best_match && match > G) {
+				best_match = match;
+				matches.clear();
+				matches.push_back(to_string(y + 1) + " " + to_string(x + 1) + " " + cat_code);
+			} else if (match == best_match) {
+				matches.push_back(to_string(y + 1) + " " + to_string(x + 1) + " " + cat_code);
+			}
+		}
+	}
+
+	if (best_match > 0) {
+		output_stream << best_match << endl;
+		for (auto i = matches.begin(); i != matches.end(); i++) {
+			output_stream << *i << endl;
+		}
+	} else {
+		output_stream << "MONEA NU ARE RUDE" << endl;
+	}
+}
+
+
+
+void task2() {
+	uint16_t n;
+	input_stream >> n;
+
+	uint16_t m;
+	input_stream >> m;
+
+	uint16_t G;
+	input_stream >> G;
+
+	string monea_code;
+	input_stream >> monea_code;
+
+	bool town[n][m] = {};
+
+	for (uint16_t y = 0; y < n; y++) {
+		for (uint16_t x = 0; x < m; x++) {
+			string cat_code;
+			input_stream >> cat_code;
+
+			if (matchCode(monea_code, cat_code) > G) {
+				town[y][x] = true;
+			} else {
+				town[y][x] = false;
+			}
+		}
+	}
+
+	uint16_t sum[n][m] = {};
+	uint16_t max_of_s, max_i, max_j = 0;
+
+	for (uint16_t i = 0; i < n; i++) {
+		sum[i][m - 1] = town[i][m - 1];
+	}
+
+	for (uint16_t j = 0; j < m; j++) {
+		sum[n - 1][j] = town[n - 1][j];
+	}
+
+	for (int16_t i = n-2; i >= 0; i--) {
+		for (int16_t j = m-2; j >= 0; j--) {
+			if (town[i][j]) {
+				sum[i][j] = min(sum[i][j+1], min(sum[i+1][j], sum[i+1][j+1])) + 1;
+				if (sum[i][j] >= max_of_s) {
+					max_of_s = sum[i][j];
+					max_i = i;
+					max_j = j;
+				}
+			} else {
+				sum[i][j] = 0;
+			}
+		}
+	}
+
+	if (max_of_s > 0) {
+		output_stream << (max_i + 1) << " " << (max_j + 1) << " " << max_of_s << endl;
+	} else {
+		output_stream << "MONEA NU ARE RUDE" << endl;
+	}
+}
+
+
+
+int main() {
+	input_stream.open("input.txt");
+	output_stream.open("output.txt");
+
+	char task;
+	input_stream >> task;
+
+
+	if (task == '1') {
+		task1();
+	} else {
+		task2();
+	}
+
+	input_stream.close();
+	output_stream.close();
+	return 0;
+}

2019/republic/12_d1/anagrame.cpp

@@ -0,0 +1,61 @@
+#include <iostream>
+#include <fstream>
+#include <unordered_map>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+int findAnagramPos(string content, string title) {
+	const uint32_t CONTENT_LEN = content.length();
+	const uint32_t TITLE_LEN = title.length();
+
+	unordered_map<char, uint32_t> target, anagram;
+	for (uint32_t i = 0; i < TITLE_LEN; i++) {
+		target[title[i]]++;
+		anagram[content[i]]++;
+	}
+
+	if (target == anagram) {
+		return 0;
+	}
+
+	for (uint32_t i = TITLE_LEN; i < CONTENT_LEN; i++) {
+		/**
+		Old first character pos = i - TITLE_LEN
+		New first character pos = i - TITLE_LEN + 1
+		Old last character pos = i - 1
+		New last character pos = i
+		*/
+		char firstChar = content[i - TITLE_LEN];
+		anagram[firstChar]--;
+
+		if (anagram[firstChar] == 0) {
+			anagram.erase(firstChar);
+		}
+
+		anagram[content[i]]++;
+
+		if (target == anagram) {
+			return i - TITLE_LEN;
+		}
+	}
+
+	return -1;
+}
+
+
+int main() {
+	input_stream.open("input.txt");
+
+	string content, title;
+	input_stream >> content;
+	input_stream >> title;
+
+	cout << findAnagramPos(content, title) << endl;	
+
+	input_stream.close();
+	return 0;
+}

2019/republic/12_d1/cartita.cpp

@@ -0,0 +1,111 @@
+#include <iostream>
+#include <fstream>
+#include <unordered_map>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+struct Node {
+public:
+	uint32_t number;
+	Node *left, *right;
+
+	Node(uint32_t n):number(n) {
+	}
+
+	Node(): number(0) {
+	}
+};
+
+
+bool locateLeftmostNode (Node *node, uint32_t level, uint32_t targetLevel) {
+	if (level == targetLevel) {
+		cout << node -> number << " ";
+		return 1;
+	} else { 
+		// Search left. If unsuccessfull, search through right
+		if (node -> left != nullptr) {
+			if (locateLeftmostNode(node -> left, level + 1, targetLevel)) {
+				return 1;
+			}
+		}
+
+		// Search right. If unsuccessful, this should return 0
+		if (node -> right != nullptr) {
+			return locateLeftmostNode(node -> right, level + 1, targetLevel);
+		}
+
+		// Previous searches didn't return anything, meaning node has no children. Return 0
+		return 0;
+	}
+}
+
+
+bool locateRightmostNode (Node *node, uint32_t level, uint32_t targetLevel) {
+	if (level == targetLevel) {
+		cout << node -> number << endl;
+		return 1;
+	} else { 
+		// Search right. If unsuccessfull, search through left
+		if (node -> right != nullptr) {
+			if (locateRightmostNode(node -> right, level + 1, targetLevel)) {
+				return 1;
+			}
+		}
+
+		// Search left. If unsuccessful, this should return 0
+		if (node -> left != nullptr) {
+			return locateRightmostNode(node -> left, level + 1, targetLevel);
+		}
+
+		// Previous searches didn't return anything, meaning node has no children. Return 0
+		return 0;
+	}
+}
+
+
+int main() {
+	input_stream.open("input.txt");
+
+	uint32_t N;
+	uint16_t K;
+	input_stream >> N;
+	input_stream >> K;
+
+	unordered_map<uint32_t, Node*> orphanNodes;
+	Node *nodes[N];
+
+	for (uint32_t i = 0; i < N; i++) {
+		nodes[i] = new Node(i + 1);
+		orphanNodes[i + 1] = nodes[i];
+	}
+
+	for (uint32_t i = 0; i < (N - 1); i++) {
+		uint32_t parentId, childId;
+		char direction;
+
+		input_stream >> parentId;
+		input_stream >> childId;
+		input_stream >> direction;
+
+		// Remove orphan mark from child
+		orphanNodes.erase(childId);
+
+		// Assign child to parent
+		if(direction == 'S') {
+			nodes[parentId - 1] -> left = nodes[childId - 1];
+		} else {
+			nodes[parentId - 1] -> right = nodes[childId - 1];
+		}
+	}
+
+	Node *rootNode = orphanNodes.begin() -> second;
+	locateLeftmostNode(rootNode, 0, K);
+	locateRightmostNode(rootNode, 0, K);
+
+	input_stream.close();
+	return 0;
+}

2019/republic/12_d1/clubul.cpp

@@ -0,0 +1,66 @@
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <algorithm>
+#include <list>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+
+void fillList(list<uint16_t> &L) {
+	int counter = 1;
+	for (auto i = L.begin(); i != L.end(); i++) {
+		*i = counter;
+		counter++;
+	}
+}
+
+
+list<uint16_t> getPositions() {
+	uint16_t N, K, R;
+	input_stream >> N;
+	input_stream >> K;
+	input_stream >> R;
+
+	list<uint16_t> positions (N, 0);
+	fillList(positions);
+
+	for (uint16_t i; i < R; i++) {
+		uint16_t loser;
+		input_stream >> loser;
+		
+		auto loser_it = positions.begin();
+		advance(loser_it, loser-1);
+
+		loser = *loser_it;
+
+		positions.erase(loser_it);
+		positions.push_back(loser);
+
+	}
+
+	return positions;
+}
+
+
+int main() {
+	input_stream.open("input.txt");
+	output_stream.open("output.txt");
+
+	list<uint16_t> positions = getPositions();
+
+	uint16_t P;	
+	input_stream >> P;
+
+	auto dan_it = positions.begin();
+	advance(dan_it, P - 1);
+	cout << *dan_it << endl;
+
+	input_stream.close();
+	output_stream.close();
+	return 0;
+}

2019/republic/12_d1/clubul2.cpp

@@ -0,0 +1,44 @@
+#include <iostream>
+#include <fstream>
+#include <algorithm>
+#include <vector>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+
+
+int main() {
+	input_stream.open("input.txt");
+	output_stream.open("output.txt");
+
+	uint32_t N, K, R, P;
+	input_stream >> N;
+	input_stream >> K;
+	input_stream >> R;
+
+	uint32_t rounds[R] = {};
+
+	for (uint32_t i = 0; i < R; i++) {
+		input_stream >> rounds[i];
+	}
+
+	input_stream >> P;
+
+	for (int i = R - 1; i >=0; i--) {
+		if (P == N) {
+			P = rounds[i];
+		} else if (P >= rounds[i]) {
+			P++;
+		}
+	}
+
+	cout << P << endl;
+
+	input_stream.close();
+	output_stream.close();
+	return 0;
+}

2019/republic/12_d2/cercetari.cpp

@@ -0,0 +1,152 @@
+#include <iostream>
+#include <fstream>
+#include <set>
+#include <algorithm>
+#include <vector>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+set<char> readCode() {
+	char str[20] = {};
+	input_stream >> str;
+
+	set<char> code = set<char>(begin(str), end(str));
+	return code;
+}
+
+
+
+uint8_t getIntersection(set<char> set1, set<char> set2) {
+	set<char> result;
+	set_intersection(set1.begin(), set1.end(), set2.begin(), set2.end(), inserter(result, result.begin()));
+	return result.size() - 1;
+}
+
+
+void task1() {
+	uint16_t n;
+	input_stream >> n;
+
+	uint16_t m;
+	input_stream >> m;
+
+	uint16_t G;
+	input_stream >> G;
+
+	set<char> monea_code = readCode();
+	int16_t best_match = -1;
+	vector<string> matches;
+	matches.reserve(m * n);
+
+	for (uint16_t y = 0; y < n; y++) {
+		for (uint16_t x = 0; x < m; x++) {
+			char cat[20] = {};
+			input_stream >> cat;
+			set<char> cat_code = set<char>(begin(cat), end(cat));
+
+			uint8_t match = getIntersection(monea_code, cat_code);
+
+			if (match > best_match && match > G) {
+				best_match = match;
+				matches.clear();
+				matches.push_back(to_string(y + 1) + " " + to_string(x + 1) + " " + string(cat));
+			} else if (match == best_match) {
+				matches.push_back(to_string(y + 1) + " " + to_string(x + 1) + " " + string(cat));
+			}
+		}
+	}
+
+	if (best_match > 0) {
+		output_stream << best_match << endl;
+		for (auto i = matches.begin(); i != matches.end(); i++) {
+			output_stream << *i << endl;
+		}
+	} else {
+		output_stream << "MONEA NU ARE RUDE" << endl;
+	}
+}
+
+
+
+void task2() {
+	uint16_t n;
+	input_stream >> n;
+
+	uint16_t m;
+	input_stream >> m;
+
+	uint16_t G;
+	input_stream >> G;
+
+	set<char> monea_code = readCode();
+	bool town[n][m] = {};
+
+	for (uint16_t y = 0; y < n; y++) {
+		for (uint16_t x = 0; x < m; x++) {
+			set<char> cat_code = readCode();
+
+			if (getIntersection(monea_code, cat_code) > G) {
+				town[y][x] = true;
+			} else {
+				town[y][x] = false;
+			}
+		}
+	}
+
+	uint16_t sum[n][m] = {};
+	uint16_t max_of_s, max_i, max_j = 0;
+
+	for (uint16_t i = 0; i < n; i++) {
+		sum[i][m - 1] = town[i][m - 1];
+	}
+
+	for (uint16_t j = 0; j < m; j++) {
+		sum[n - 1][j] = town[n - 1][j];
+	}
+
+	for (int16_t i = n-2; i >= 0; i--) {
+		for (int16_t j = m-2; j >= 0; j--) {
+			if (town[i][j]) {
+				sum[i][j] = min(sum[i][j+1], min(sum[i+1][j], sum[i+1][j+1])) + 1;
+				if (sum[i][j] >= max_of_s) {
+					max_of_s = sum[i][j];
+					max_i = i;
+					max_j = j;
+				}
+			} else {
+				sum[i][j] = 0;
+			}
+		}
+	}
+
+	if (max_of_s > 0) {
+		output_stream << (max_i + 1) << " " << (max_j + 1) << " " << max_of_s << endl;
+	} else {
+		output_stream << "MONEA NU ARE RUDE" << endl;
+	}
+}
+
+
+
+int main() {
+	input_stream.open("input.txt");
+	output_stream.open("output.txt");
+
+	char task;
+	input_stream >> task;
+
+
+	if (task == '1') {
+		task1();
+	} else {
+		task2();
+	}
+
+	input_stream.close();
+	output_stream.close();
+	return 0;
+}

2019/republic/12_d2/pante.cpp

@@ -0,0 +1,143 @@
+#include <iostream>
+#include <fstream>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+bool checkAscending(string numStr) {
+	char highestDigit = numStr[0];
+
+	for (uint8_t i = 1; i < numStr.length(); i++) {
+		if (numStr[i] < highestDigit) {
+			return false;
+		}
+		highestDigit = numStr[i];
+	}
+	return true;
+}
+
+
+
+uint64_t n_choose_m(uint8_t n, uint8_t m) {
+	if (m > n) {
+		return 0;
+	}
+
+	if (m * 2 > n) {
+		m = n - m;
+	}
+
+	if (m == 0) {
+		return 1;
+	}
+
+	uint64_t res = n;
+
+	for (int i = 2; i <= m; i++) {
+		res *= n - i + 1;
+		res /= i;
+	}
+
+	return res;
+}
+
+
+
+uint64_t pos_combinations(uint8_t pos) {
+	/**
+	pos starts at 0 from right end of number
+	10^pos <> 10^pos-1
+	*/
+	if (pos == 0) {
+		return 0;
+	} else {
+		return n_choose_m(8 + pos, pos);
+	}
+}
+
+
+
+uint64_t following_combinations(uint8_t first_num, uint8_t pos) {
+	/**
+	10^pos+1 <> first_num * 10^pos
+	available = 10 - (first_num - 1) + allowed_repeats (pos)
+	*/
+	return n_choose_m(10 - first_num + pos, pos + 1);
+}
+
+
+
+uint64_t preceeding_combinations(uint8_t first_num, uint8_t pos) {
+	/**
+	first_num * 10^pos <> 10^pos
+	*/
+	return pos_combinations(pos + 1) - following_combinations(first_num, pos);
+}
+
+
+
+uint64_t find_ascending(string start, string end) {
+	uint64_t result = 0;
+	const uint8_t end_len = end.length();
+
+	if (end_len == 1) {
+		result += stoi(end) - stoi(start) + 1;
+	} else if (start == "1") {
+		char highest_digit = '1';
+		bool sequence_integrity = true;
+
+		// Run this loop until a digit lower than the others is encountered
+		uint8_t i;
+		for (i = 0; i < end_len - 1; i++) {
+			uint8_t pos = end_len - i - 1;
+			result += pos_combinations(pos);
+
+			if (end[i] > highest_digit) {
+				result += preceeding_combinations(end[i] - '0', pos) - preceeding_combinations(highest_digit - '0', pos);
+				highest_digit = end[i];
+			} else if (end[i] < highest_digit) {
+				sequence_integrity = false;
+				break;
+			}
+		}
+
+		i++;
+		for (i; i < end_len - 1; i++) {
+			uint8_t pos = end_len - i - 1;
+			result += pos_combinations(pos);
+		}
+
+		if (sequence_integrity && end[end_len - 1] >= highest_digit) {
+			result += end[end_len - 1] - highest_digit + 1;
+		}
+	} else {
+		result += find_ascending("1", end) - find_ascending("1", start);
+
+		if (checkAscending(start)) {
+			result += 1;
+		}
+	}
+
+	return result;
+}
+
+
+
+int main() {
+	input_stream.open("input.txt");
+	output_stream.open("output.txt");
+
+	string A; 
+	string B;
+
+	input_stream >> A;
+	input_stream >> B;
+	
+	cout << find_ascending(A, B) << endl;
+
+	input_stream.close();
+	output_stream.close();
+	return 0;
+}

2019/republic/12_d2/vasul.cpp

@@ -0,0 +1,58 @@
+#include <iostream>
+#include <fstream>
+#include <deque>
+#include <numeric>
+
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+uint64_t dequeSum(deque<uint64_t> &d) {
+	return accumulate(d.begin(), d.end(), 0);
+}
+
+int main() {
+	input_stream.open("input.txt");
+	output_stream.open("output.txt");
+
+	uint16_t P, T, N;
+	input_stream >> P;
+	input_stream >> T;
+	input_stream >> N;
+
+	deque<uint64_t> bacteria;
+	bacteria.push_front(P);
+
+	uint16_t i;
+	uint64_t mature = 0;
+
+	// Populate list until death of first generation
+	for (i=1; i < T && i <= N; i++) {
+		// Reproduction
+		bacteria.push_front(mature);
+
+		// Maturity
+		mature += bacteria[1];
+	}
+
+	// Run loop considering death until experiment is complete
+	for(i; i <= N; i++) {
+		// Reproduction
+		bacteria.push_front(mature);
+
+		// Death
+		mature -= bacteria.back();
+		bacteria.pop_back();
+
+		// Maturity
+		mature += bacteria[1];
+	}
+
+	output_stream << dequeSum(bacteria) << endl;
+
+	input_stream.close();
+	output_stream.close();
+	return 0;
+}