C - 2982
Este programa implementa una búsqueda a través de un amplio conjunto de resultados. La parte importante de hacer que esta búsqueda sea práctica fue fallar temprano y / o no seguir malos caminos.
Esto genera un conjunto de rectángulos a considerar para la solución. El conjunto de rectángulos generados evita aquellos con dimensiones que no serían útiles. Por ejemplo, si el programa está tratando de encontrar la solución para un cuadrado de 128x128, dividido en 8 rectángulos, generará un rectángulo de 128x16. No generará que uno sea 120x17 porque no hay posibilidad de un rectángulo generador que tenga 8 de ancho para llenar el espacio al final de 120.
La estrategia inicial para colocar rectángulos es colocarlos en el interior del perímetro del cuadrado (función de construcción). De esa manera, el algoritmo obtiene una respuesta bastante rápida en cada esquina sobre si hay un problema con la secuencia elegida. Al colocar rectángulos, la lógica sigue observando si se desarrollan espacios de espacio demasiado estrechos para cualquier rectángulo. Una vez que el perímetro se ha poblado con éxito, la estrategia cambia para tratar de hacer coincidir el espacio restante con los rectángulos restantes (función de coincidencia).
Otra cosa que podría ser interesante es que esto implementa transacciones con reversión para las pilas de rectángulos.
Este programa no intenta encontrar el mejor ajuste posible. Se le asigna un presupuesto (64) y se cierra cuando encuentra la primera solución. Si nunca encuentra una solución, aumentamos el presupuesto (en 16) e intentamos nuevamente. El tiempo requerido (en una computadora portátil Dell con un procesador I7) varió de menos de un minuto a 48 minutos por 150 en un lado (149 en un lado tomó menos de 2 minutos). Las 51 soluciones usaron 11 rectángulos. Los puntajes de las 51 soluciones variaron de 41 a 78. Las razones por las que utilicé 11 rectángulos fueron que el puntaje era más bajo que con menos rectángulos y parecía que 12 rectángulos tomarían mucho más de la hora asignada.
Las soluciones y el código se pueden encontrar en https://github.com/JaySpencerAnderson/mondrian . Son los dos archivos my4 *.
Por cierto, si compila esto en "my4" y lo ejecuta de la siguiente manera: "./my4 -h", le dará uso. Si quiere verlo en acción trabajando lejos, intente algo como "./my4 -l 50 -n 8". Si cambia el "#if 0" a "#if 1", mostrará el espacio restante en la pantalla. Si desea cambiar esto para representar los rectángulos, busque el lugar donde el código ejecuta "gráfico (espacio, lado)" y cámbielo a "gráfico (pila de llamadas, lado)". También te sugiero que cambies el presupuesto inicial de 64 a 32 si quieres jugar con soluciones para cuadrados de aproximadamente 50 de ancho. La solución para cuadrados más pequeños tendrá una mejor puntuación con un presupuesto más pequeño.
El siguiente programa es funcional. Verifique github para obtener el código completo (con uso, comentarios, etc.).
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
typedef struct {
int y, x, height, width, created, deleted;
} rectangle;
#define NOTYET -1
#define TOPEDGE 1
#define RIGHTEDGE 2
#define BOTTOMEDGE 4
#define LEFTEDGE 8
#define CENTER 16
#define nextEdge(e) (e<<=1)
#define min(x,y) (((x)<(y))?(x):(y))
#define max(x,y) (((x)>(y))?(x):(y))
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
#define MAXFACTORS 1000
#define EOL printf("\n")
#define isCurrent(r) (r.created != NOTYET && r.deleted == NOTYET)
#define deleteTxn(r,t) (r.deleted=t)
int area(rectangle r){
return r.width*r.height;
}
void pop(rectangle *s){
unsigned int k=0;
while(s[k].width){
k++;
}
s[k-1].width=s[k-1].height=0;
}
void rpush(rectangle *s, rectangle x){
unsigned int k=0;
while(s[k].width){
k++;
}
x.deleted=NOTYET;
s[k++]=x;
s[k].width=s[k].height=0;
return;
}
void dumprectangle(rectangle r){
printf("%dX%d@[%d,%d] (%d,%d)\t",r.width, r.height, r.x, r.y, r.created, r.deleted);
}
void dumpstack(rectangle *s){
unsigned int k=0;
while(s[k].width){
dumprectangle(s[k]);
k++;
}
}
rectangle initrectangle(int width, int height){
rectangle r;
r.x=r.y=0;
r.width=width;
r.height=height;
r.created=0;
r.deleted=NOTYET;
return r;
}
void initstack(rectangle *s, int n){
int i;
for(i=0;i<n;i++){
s[i].y=s[i].x=s[i].height=s[i].width=0;
}
}
int bitcount(int x){
int count=0;
while(x){
if(x&1){
count++;
}
x>>=1;
}
return count;
}
int congruent(rectangle a, rectangle b){
return min(a.height,a.width) == min(b.height,b.width) && max(a.height,a.width) == max(b.height,b.width);
}
void report(rectangle *s, int side){
int i;
unsigned int smallest,biggest,area=0;
smallest=side*side;
biggest=0;
for(i=0;s[i].width;i++){
if(isCurrent(s[i])){
smallest=min(smallest,s[i].width*s[i].height);
biggest=max(biggest,s[i].width*s[i].height);
}
}
printf("{%d}\n",biggest-smallest);
printf("{\nDimensions\tLocation\n");
for(i=0;s[i].width;i++){
printf("%dx%d\t\t[%d,%d]\n",
s[i].width, s[i].height,
s[i].x, s[i].y);
}
printf("}\n");
}
unsigned int sumstack(rectangle *s){
unsigned int sum=0;
int i;
for(i=0;s[i].width;i++){
if(isCurrent(s[i])){
sum+=s[i].width*s[i].height;
s++;
}
}
return sum;
}
unsigned int minstack(rectangle *s){
unsigned int area=400000;
int i;
for(i=0;s[i].width;i++){
if(isCurrent(s[i])){
area=min(area,s[i].width*s[i].height);
}
}
return area;
}
void rollback(rectangle *r, int txn){
int i;
if(txn != NOTYET){
for(i=0;r[i].width;i++){
if(r[i].created == txn){
r[i].created=r[i].deleted=NOTYET;
r[i].x=r[i].width=r[i].y=r[i].height=0;
}
else if(r[i].deleted == txn){
r[i].deleted=NOTYET;
}
}
}
}
int overlap(rectangle a, rectangle b){
if((a.x < b.x+b.width && a.x+a.width > b.x) && (b.y < a.y+a.height && b.y+b.height > a.y)){
return TRUE;
}
return FALSE;
}
int stackoverlap(rectangle *callstack, rectangle next){
int i,j;
for(i=0;callstack[i].width;i++){
if(overlap(callstack[i], next)){
return TRUE;
}
}
return FALSE;
}
rectangle rotate(rectangle a){
int x=a.width;
a.width=a.height;
a.height=x;
return a;
}
int buildedge(rectangle *stack, rectangle *callstack,int side, rectangle *space){
int i,j,edge,goal,nextgoal,x,y,d,mindim,minarea,result=FALSE,spacetxn,stacktxn;
mindim=side;
minarea=side*side;
for(i=0;stack[i].width;i++){
mindim=min(mindim,min(stack[i].width,stack[i].height));
minarea=min(minarea,area(stack[i]));
}
x=y=0;
edge=TOPEDGE;
i=0;
while(edge == TOPEDGE && callstack[i].width != 0){
if(callstack[i].x == x && callstack[i].y == y){
x+=callstack[i].width;
if(x == side){
nextEdge(edge);
y=0;
}
i=0;
}
else {
i++;
}
}
while(edge == RIGHTEDGE && callstack[i].width != 0){
if(callstack[i].x+callstack[i].width == x && callstack[i].y == y){
y+=callstack[i].height;
if(y == side){
nextEdge(edge);
x=side;
}
i=0;
}
else {
i++;
}
}
while(edge == BOTTOMEDGE && callstack[i].width != 0){
if(callstack[i].x+callstack[i].width == x && callstack[i].y+callstack[i].height == y){
x-=callstack[i].width;
if(x == 0){
nextEdge(edge);
y=side;
}
i=0;
}
else {
i++;
}
}
while(edge == LEFTEDGE && callstack[i].width != 0){
if(callstack[i].x == x && callstack[i].y+callstack[i].height == y){
y-=callstack[i].height;
if(y == 0){
nextEdge(edge);
}
i=0;
}
else {
i++;
}
}
if(edge == CENTER){
/* rectangles are placed all along the perimeter of the square.
* Now match will use a different strategy to match the remaining space
* with what remains in stack */
if(match(stack,callstack,space)){
report(callstack,side);
return TRUE;
}
return FALSE;
}
switch(edge){
case TOPEDGE:
goal=side-x;
break;
case RIGHTEDGE:
goal=side-y;
break;
case BOTTOMEDGE:
goal=x;
break;
case LEFTEDGE:
/* Still a good assumption that callstack[0] is at 0,0 */
goal=y-callstack[0].height;
break;
default:
fprintf(stderr,"Error: buildedge has unexpected edge (b): %d\n",edge);
exit(0);
}
nextgoal=goal-mindim;
for(i=0;stack[i].width;i++){
if(isCurrent(stack[i])){
for(d=0;d<2;d++){
switch(edge){
case TOPEDGE:
if(stack[i].width == goal || stack[i].width <= nextgoal){
stack[i].x=x;
stack[i].y=y;
if(!stackoverlap(callstack, stack[i])){
spacetxn=nexttransaction(space);
stacktxn=nexttransaction(stack);
deleteTxn(stack[i],stacktxn);
removerectangle(space, stack[i], spacetxn);
if(narrow(space) >= mindim && smallest(space) >= minarea){
rpush(callstack, stack[i]);
if(buildedge(stack, callstack, side, space)){
return TRUE;
}
pop(callstack);
}
rollback(space, spacetxn);
rollback(stack, stacktxn);
stack[i].x=stack[i].y=0;
}
}
break;
case RIGHTEDGE:
if(stack[i].height == goal || stack[i].height <= nextgoal){
stack[i].x=x-stack[i].width;
stack[i].y=y;
if(!stackoverlap(callstack, stack[i])){
spacetxn=nexttransaction(space);
stacktxn=nexttransaction(stack);
deleteTxn(stack[i],stacktxn);
removerectangle(space, stack[i], spacetxn);
if(narrow(space) >= mindim && smallest(space) >= minarea){
rpush(callstack, stack[i]);
if(buildedge(stack, callstack, side, space)){
return TRUE;
}
pop(callstack);
}
rollback(space, spacetxn);
rollback(stack, stacktxn);
stack[i].x=stack[i].y=0;
}
}
break;
case BOTTOMEDGE:
if(stack[i].width == goal || stack[i].width <= nextgoal){
stack[i].x=x-stack[i].width;
stack[i].y=y-stack[i].height;
if(!stackoverlap(callstack, stack[i])){
spacetxn=nexttransaction(space);
stacktxn=nexttransaction(stack);
deleteTxn(stack[i],stacktxn);
removerectangle(space, stack[i], spacetxn);
if(narrow(space) >= mindim && smallest(space) >= minarea){
rpush(callstack, stack[i]);
if(buildedge(stack, callstack, side, space)){
return TRUE;
}
pop(callstack);
}
rollback(space, spacetxn);
rollback(stack, stacktxn);
stack[i].x=stack[i].y=0;
}
}
break;
case LEFTEDGE:
if(stack[i].height == goal || stack[i].height <= nextgoal){
stack[i].x=x;
stack[i].y=y-stack[i].height;
if(!stackoverlap(callstack, stack[i])){
spacetxn=nexttransaction(space);
stacktxn=nexttransaction(stack);
deleteTxn(stack[i],stacktxn);
removerectangle(space, stack[i], spacetxn);
if(narrow(space) >= mindim && smallest(space) >= minarea){
rpush(callstack, stack[i]);
if(buildedge(stack, callstack, side, space)){
return TRUE;
}
pop(callstack);
}
rollback(space, spacetxn);
rollback(stack, stacktxn);
stack[i].x=stack[i].y=0;
}
}
break;
default:
fprintf(stderr,"Error: buildedge has unexpected edge (c): %d\n",edge);
exit(0);
}
if(callstack[0].width != 0 && stack[i].width != stack[i].height){
stack[i]=rotate(stack[i]);
}
else {
break;
}
}
}
}
return FALSE;
}
int populatestack(rectangle *stack, int score, int side, int rectangles){
int offset,negative,area,mindim;
rectangle local;
int avg_area=(side*side)/rectangles;
if(avg_area < 4){
/* It's getting too small - really */
return FALSE;
}
local.x=0;
local.y=0;
local.created=0;
local.deleted=NOTYET;
initstack(stack,MAXFACTORS);
for(offset=1;offset<=score;offset++){
negative=offset&1;
area=avg_area + (negative?(0-(offset>>1)):(offset>>1));
mindim=area/side;
if(side*(area/side) == area){
local.width=side;
local.height=area/side;
rpush(stack,local);
}
if(area > 0){
for(local.width=side-mindim;local.width>=area/local.width;local.width--){
if(local.width*(area/local.width) == area){
local.height=area/local.width;
rpush(stack,local);
}
}
}
}
return TRUE;
}
int solve(int side,int rectangles,int score){
rectangle stack[MAXFACTORS],callstack[MAXFACTORS];
rectangle space[MAXFACTORS];
rectangle universe;
if(!populatestack(stack, score, side, rectangles)){
return FALSE;
}
if(sumstack(stack) >= side*side){
initstack(callstack,MAXFACTORS);
initstack(space,MAXFACTORS);
/* Initialize space (not occupied by a rectangle) to be side by side
* where side is the height/width of the square into which the rectangles fit. */
universe.width=universe.height=side;
universe.x=universe.y=0;
universe.created=0;
universe.deleted=NOTYET;
rpush(space, universe);
if(buildedge(stack,callstack,side,space)){
return TRUE;
}
}
return FALSE;
}
int containsPoint(rectangle a, int x, int y){
return a.x <= x && a.y <= y && a.x+a.width > x && a.y+a.height > y;
}
int containsRectangle(rectangle a, rectangle b){
return containsPoint(a, b.x, b.y) && containsPoint(a, b.x+b.width-1, b.y) && containsPoint(a, b.x, b.y+b.height-1) && containsPoint(a, b.x+b.width-1, b.y+b.height-1);
}
int areEqual(rectangle a, rectangle b){
return a.x == b.x && a.y == b.y && a.width == b.width && a.height == b.height;
}
int nexttransaction(rectangle *r){
int i,n=NOTYET;
for(i=0;r[i].width;i++){
n=max(n,max(r[i].created,r[i].deleted));
}
return n+1;
}
void splitrectanglevertically(rectangle *space, int i, int x, int txn){
rectangle left, right;
left=right=space[i];
right.x=x;
left.width=right.x-left.x;
right.width-=left.width;
left.created=right.created=space[i].deleted=txn;
rpush(space,left);
rpush(space,right);
}
void splitrectanglehorizontally(rectangle *space, int i, int y, int txn){
rectangle top, bottom;
top=bottom=space[i];
bottom.y=y;
top.height=bottom.y-top.y;
bottom.height-=top.height;
top.created=bottom.created=space[i].deleted=txn;
rpush(space,top);
rpush(space,bottom);
}
int smallest(rectangle *space){
int i,j,smallest;
rectangle current;
smallest=0;
for(i=0;space[i].width;i++){
if(isCurrent(space[i])){
current=space[i];
for(j=0;space[j].width;j++){
if(isCurrent(space[j]) && i != j){
if(current.x+current.width == space[j].x
&& space[j].y <= current.y && space[j].y+space[j].height >= current.y+current.height){
current.width+=space[j].width;
}
else if(space[j].x+space[j].width == current.x
&& space[j].y <= current.y && space[j].y+space[j].height >= current.y+current.height){
current.x=space[j].x;
current.width+=space[j].width;
}
else if(current.y+current.height == space[j].y
&& space[j].x <= current.x && space[j].x+space[j].width >= current.x+current.width){
current.height+=space[j].height;
}
else if(space[j].y+space[j].height == current.y
&& space[j].x <= current.x && space[j].x+space[j].width >= current.x+current.width){
current.y=space[j].y;
current.height+=space[j].height;
}
}
}
if(smallest == 0){
smallest=current.width * current.height;
}
else if(smallest > current.width * current.height){
smallest=current.width * current.height;
}
}
}
return smallest;
}
int narrow(rectangle *space){
int i,j;
rectangle smallest,current;
smallest.width=0;
for(i=0;space[i].width;i++){
current=space[i];
if(isCurrent(current)){
for(j=0;space[j].width;j++){
if(isCurrent(space[j]) && i != j){
if(current.width <= current.height
&& current.x+current.width == space[j].x
&& space[j].y <= current.y && space[j].y+space[j].height >= current.y+current.height){
current.width+=space[j].width;
}
else if(current.width <= current.height
&& space[j].x+space[j].width == current.x
&& space[j].y <= current.y && space[j].y+space[j].height >= current.y+current.height){
current.x=space[j].x;
current.width+=space[j].width;
}
if(current.width >= current.height
&& current.y+current.height == space[j].y
&& space[j].x <= current.x && space[j].x+space[j].width >= current.x+current.width){
current.height+=space[j].height;
}
else if(current.width >= current.height
&& space[j].y+space[j].height == current.y
&& space[j].x <= current.x && space[j].x+space[j].width >= current.x+current.width){
current.y=space[j].y;
current.height+=space[j].height;
}
}
}
if(smallest.width == 0){
smallest=current;
}
else if(min(smallest.width,smallest.height) > min(current.width,current.height)){
smallest=current;
}
}
}
return min(smallest.width,smallest.height);
}
int notEmpty(rectangle *space){
int i,count;
for(i=0,count=0;space[i].width;i++){
if(isCurrent(space[i])){
count++;
}
}
return count;
}
int isAdjacent(rectangle r, rectangle s){
if(r.y == s.y+s.height && r.x < s.x+s.width && s.x < r.x+r.width){
return TOPEDGE;
}
if(s.x == r.x+r.width && r.y < s.y+s.height && s.y < r.y+r.height){
return RIGHTEDGE;
}
if(s.y == r.y+r.height && r.x < s.x+s.width && s.x < r.x+r.width){
return BOTTOMEDGE;
}
if(r.x == s.x+s.width && r.y < s.y+s.height && s.y < r.y+r.height){
return LEFTEDGE;
}
return NOTYET;
}
int adjacentrectangle(rectangle *space, int k, int k0){
int i,edge;
for(i=k0+1;space[i].width;i++){
if(i != k && isCurrent(space[i])){
if(isAdjacent(space[k],space[i]) != NOTYET){
return i;
}
}
}
return NOTYET;
}
int expanse(rectangle *space, int j, int d){ /* Returns how far space[j] can expand in the d direction */
int extent,k,giveUp,distance;
rectangle result=space[j];
extent=0;
giveUp=FALSE;
distance=0;
if(d == TOPEDGE || d == BOTTOMEDGE){
while(extent < space[j].width && !giveUp){
giveUp=TRUE;
for(k=0;space[k].width;k++){
if(k != j && isCurrent(space[k]) && isAdjacent(space[j],space[k]) == d){
if(space[j].x+extent == space[k].x){
extent+=space[k].width;
if(distance == 0){
distance=expanse(space,k,d);
}
else {
distance=min(distance,expanse(space,k,d));
}
giveUp=FALSE;
}
else if(space[j].x+extent > space[k].x && space[j].x+extent < space[k].x+space[k].width){
extent=space[k].x+space[k].width-space[j].x;
if(distance == 0){
distance=expanse(space,k,d);
}
else {
distance=min(distance,expanse(space,k,d));
}
giveUp=FALSE;
}
}
}
}
if(extent < space[j].width){
return 0;
}
return space[j].height+distance;
}
else if(d == LEFTEDGE || d == RIGHTEDGE){
while(extent < space[j].height && !giveUp){
giveUp=TRUE;
for(k=0;space[k].width;k++){
if(k != j && isCurrent(space[k]) && isAdjacent(space[j],space[k]) == d){
if(space[j].y+extent == space[k].y){
extent+=space[k].height;
if(distance == 0){
distance=expanse(space,k,d);
}
else {
distance=min(distance,expanse(space,k,d));
}
giveUp=FALSE;
}
else if(space[j].y+extent > space[k].y && space[j].y+extent < space[k].y+space[k].height){
extent=space[k].y+space[k].height-space[j].y;
if(distance == 0){
distance=expanse(space,k,d);
}
else {
distance=min(distance,expanse(space,k,d));
}
giveUp=FALSE;
}
}
}
}
if(extent < space[j].height){
return 0;
}
return space[j].width+distance;
}
return 0;
}
int match(rectangle *stack, rectangle *callstack, rectangle *space){
int i,j,k,d,goal,mn;
int height;
int spacetxn, stacktxn, calltxn;
int map;
rectangle r;
for(i=0,goal=0;space[i].width;i++){
if(isCurrent(space[i])){
goal+=space[i].width*space[i].height;
}
}
if(goal == 0){
return TRUE;
}
mn=minstack(stack);
if(goal < mn){
/* The goal (space available) is smaller than any rectangle left in the stack */
return FALSE;
}
spacetxn=nexttransaction(space);
stacktxn=nexttransaction(stack);
calltxn=nexttransaction(callstack);
for(j=0;space[j].width;j++){
for(i=0;stack[i].width;i++){
if(isCurrent(stack[i]) && isCurrent(space[j])){
if(congruent(space[j], stack[i]) && adjacentrectangle(space,j,NOTYET) == NOTYET){
r=space[j];
r.created=calltxn;
rpush(callstack, r);
deleteTxn(stack[i],stacktxn);
deleteTxn(space[j],spacetxn);
}
}
}
}
if(!notEmpty(space)){
return TRUE;
}
rectangle e;
for(j=0;space[j].width;j++){
if(isCurrent(space[j])){
e=space[j];
for(k=0,map=0;space[k].width;k++){
if(k != j && isCurrent(space[k])){
d=isAdjacent(space[j], space[k]);
if(d != NOTYET){
map|=d;
}
}
}
if(bitcount(map) == 1){ /* space[j] has adjacent space on only one side */
if(map == TOPEDGE || map == BOTTOMEDGE){
e.height=expanse(space,j,map);
}
else if(map == LEFTEDGE || map == RIGHTEDGE){
e.width=expanse(space,j,map);
}
for(i=0;stack[i].width;i++){
if(isCurrent(stack[i])){
if(congruent(e, stack[i])){
e.created=calltxn;
rpush(callstack, e);
deleteTxn(stack[i],stacktxn);
if(!removerectangle(space, e, spacetxn)){
printf("Logic error in match/expanse. Terminating\n");
exit(0);
}
if(match(stack,callstack,space)){
return TRUE;
}
else {
rollback(stack,stacktxn);
rollback(callstack,calltxn);
rollback(space,spacetxn);
return FALSE;
}
}
else if(congruent(space[j], stack[i])){
r=space[j];
r.created=calltxn;
rpush(callstack, r);
deleteTxn(stack[i],stacktxn);
if(!removerectangle(space, r, spacetxn)){
printf("Logic error in match/expanse. Terminating\n");
exit(0);
}
if(match(stack,callstack,space)){
return TRUE;
}
else {
rollback(stack,stacktxn);
rollback(callstack,calltxn);
rollback(space,spacetxn);
return FALSE;
}
}
}
}
}
}
}
if(notEmpty(space)){
rollback(stack,stacktxn);
rollback(callstack,calltxn);
rollback(space,spacetxn);
return FALSE;
}
return TRUE;
}
int removerectangle(rectangle *space, rectangle r, int ntxn){
int i,status=TRUE;
for(i=0;space[i].width;i++){
if(space[i].deleted == NOTYET){
if(areEqual(space[i], r)){
space[i].deleted=ntxn;
return TRUE;
}
else if(containsRectangle(space[i], r)){
if(r.x > space[i].x){
splitrectanglevertically(space, i, r.x, ntxn);
}
else if(r.y > space[i].y){
splitrectanglehorizontally(space, i, r.y, ntxn);
}
else if(r.x+r.width < space[i].x+space[i].width){
splitrectanglevertically(space, i, r.x+r.width, ntxn);
}
else if(r.y+r.height < space[i].y+space[i].height){
splitrectanglehorizontally(space, i, r.y+r.height, ntxn);
}
}
else if(overlap(space[i], r)){ /* we have to split both */
rectangle aux;
if(r.x < space[i].x){
aux=r;
aux.width=space[i].x-r.x;
r.x+=aux.width;
r.width-=aux.width;
if(!removerectangle(space,aux,ntxn)){
return FALSE;
}
}
if(r.x+r.width > space[i].x+space[i].width){
aux=r;
aux.x=space[i].x+space[i].width;
aux.width=r.x+r.width-aux.x;
r.width-=aux.width;
if(!removerectangle(space,aux,ntxn)){
return FALSE;
}
}
if(r.y < space[i].y){
aux=r;
aux.height=space[i].y-aux.y;
r.y+=aux.height;
r.height-=aux.height;
if(!removerectangle(space,aux,ntxn)){
return FALSE;
}
}
if(r.y+r.height > space[i].y+space[i].height){
aux=r;
aux.y=space[i].y+space[i].height;
aux.height=r.y+r.height-aux.y;
r.height-=aux.height;
if(!removerectangle(space,aux,ntxn)){
return FALSE;
}
}
if(areEqual(space[i], r)){
space[i].deleted=ntxn;
return TRUE;
}
else {
if(!removerectangle(space,r,ntxn)){
return FALSE;
}
return TRUE;
}
}
}
}
return TRUE;
}
int main(int argc, char *argv[]){
int side=15;
int n=5;
int budget=0;
int status;
while((status=getopt(argc,argv,"l:n:")) >= 0){
switch(status){
case 'l':
sscanf(optarg,"%d",&side);
break;
case 'n':
sscanf(optarg,"%d",&n);
break;
}
}
budget=64;
while(solve(side,n,budget) == FALSE){
budget+=16;
}
}