Ukraina

#include<stdio.h>
#include<stdlib.h>
#include<time.h>

struct Point {
	int x, y;
};

struct Figura {
	unsigned short size;
	Point** p;
};

void inicjacja(Figura** figura, int ilosc) {

	*figura = (Figura*)malloc(ilosc * sizeof(Figura));

	for (int i = 0; i < ilosc; i++) {
		(*figura)[i].p = (Point**)malloc(ilosc * sizeof(Point*));

		for (int j = 0; j < ilosc; j++) {
			(*figura)[i].p[j] = (Point*)malloc(sizeof(Point));
		}
	}
}

void stworz_baze(Figura* figura, int ilosc) {
	for (int i = 0; i < ilosc; i++) {
		figura[i].size = ilosc;

		for (int j = 0; j < ilosc; j++) {
			figura[i].p[j]->x = rand() % 20;
			figura[i].p[j]->y = rand() % 20;
		}
	}
}


void dodaj_figure(Figura** figura, int* ilosc) {

	Figura* temp;

	*ilosc = *ilosc + 1;

	temp = (Figura*)malloc(*ilosc * sizeof(Figura));

	for (int i = 0; i < (*ilosc - 1); i++) {
		temp[i] = (*figura)[i];
	}

	temp[*ilosc - 1].size = 2;
	temp[*ilosc - 1].p = (Point**)malloc(temp[*ilosc - 1].size * sizeof(Point*));
	for (int j = 0; j < temp[*ilosc - 1].size; j++) {
		temp[*ilosc - 1].p[j] = (Point*)malloc(sizeof(Point));
	}

	for (int j = 0; j < temp[*ilosc - 1].size; j++) {
		temp[*ilosc - 1].p[j]->x = rand() % 20;
		temp[*ilosc - 1].p[j]->y = rand() % 20;
	}

	free(*figura);
	*figura = temp;
}

void usun_figure(Figura** figura, int* ilosc) {

	*ilosc = *ilosc - 1;

	Figura* temp;
	int los;

	los = rand() % (*ilosc);

	temp = (Figura*)malloc(*ilosc * sizeof(Figura));
	for (int i = 0; i < los; i++) {
		temp[i] = (*figura)[i];
	}
	for (int i = los; i < *ilosc; i++) {
		temp[i] = (*figura)[i + 1];
	}

	free(*figura);
	*figura = temp;
}

void dodaj_punkt(Figura** figura, int ilosc) {

	Point** temp;

	int los = rand() % ilosc;

	(*figura)[los].size = (*figura)[los].size + 1;


	temp = (Point**)malloc((*figura)[los].size * sizeof(Point*));
	for (int i = 0; i < (*figura)[los].size; i++) {
		temp[i] = (Point*)malloc(sizeof(Point));
	}

	for (int i = 0; i < ((*figura)[los].size - 1); i++) {
		temp[i][0] = (*figura)[los].p[i][0];
	}

	temp[(*figura)[los].size - 1]->x = rand() % 20;
	temp[(*figura)[los].size - 1]->y = rand() % 20;


	for (int i = 0; i < (*figura)[los].size - 1; i++) {
		free((*figura)[los].p[i]);
	}
	free((*figura)[los].p);

	(*figura)[los].p = temp;
}

void usun_punkt(Figura** figura, int ilosc) {

	int los = rand() % ilosc;

	Point** temp;

	(*figura)[los].size = (*figura)[los].size - 1;

	temp = (Point**)malloc((*figura)[los].size * sizeof(Point*));
	for (int i = 0; i < (*figura)[los].size; i++) {
		temp[i] = (Point*)malloc(sizeof(Point));
	}

	for (int i = 0; i < los; i++) {
		temp[i][0] = (*figura)[los].p[i][0];
	}
	for (int i = los; i < (*figura)[los].size; i++) {
		temp[i][0] = (*figura)[los].p[i + 1][0];
	}

	for (int i = 0; i < (*figura)[los].size + 1; i++) {
		free((*figura)[los].p[i]);
	}
	free((*figura)[los].p);

	(*figura)[los].p = temp;
}

void pokaz(Figura* figura, int ilosc) {
	for (int i = 0; i < ilosc; i++) {
		printf("FIGURA %d:", i);
		for (int j = 0; j < figura[i].size; j++) {
			printf("(%d,%d)\t", j, figura[i].p[j]->x, figura[i].p[j]->y);
		}
		printf("\n");
		if (figura[i].size == 1)printf("FIGURA JEST PUNKTEM");
		else if (figura[i].size == 2)printf("FIGURA JEST PROSTA");
		else printf("FIGURA JEST %d-KATEM", figura[i].size);
		printf("\n\n");
	}
}

int main() {
	srand(time(NULL));
	Figura* figura;
	int wybor;
	int ilosc = 2;
	char ch;

	inicjacja(&figura, ilosc);

	do {
		printf("Menu\n\n");
		printf("1. Stworz baze figur \n");
		printf("2. Dodaj figure \n");
		printf("3. Usun figure \n");
		printf("4. Dodaj punkt do figury \n");
		printf("5. Usun punkt figury \n");
		printf("6. Pokaz figury \n");
		printf("0. Exit\n");
		printf("Wybierz opcje: \n");

		scanf_s("%d", &wybor);
		ch = getchar();
		system("cls");

		switch (wybor) {
		case 1:
			stworz_baze(figura, ilosc);
			break;
		case 2:
			dodaj_figure(&figura, &ilosc);
			break;
		case 3:
			usun_figure(&figura, &ilosc);
			break;
		case 4:
			dodaj_punkt(&figura, ilosc);
			break;
		case 5:
			usun_punkt(&figura, ilosc);
			break;
		case 6:
			pokaz(figura, ilosc);
			break;
		case 0:
			break;
		default:
			printf("Blad");
		}
		while ((ch = getchar()) != '\n');
		system("cls");
	} while (wybor != 0);

	return 0;
}