C - 2982
Questo programma implementa una ricerca attraverso un ampio set di risultati. La parte importante nel rendere pratica questa ricerca è stata quella di fallire presto e / o non seguire percorsi sbagliati.
Questo genera una serie di rettangoli da considerare per la soluzione. L'insieme di rettangoli generati evita quelli con dimensioni che non sarebbero utili. Ad esempio, se il programma sta cercando di trovare la soluzione per un quadrato 128x128, diviso in 8 rettangoli, genererà un rettangolo di 128x16. Non genererà che uno è 120x17 perché non vi è alcuna prospettiva di un rettangolo di generazione largo 8 per colmare il gap alla fine di 120.
La strategia iniziale per posizionare i rettangoli è posizionarli all'interno del perimetro del quadrato (funzione buildedge). In questo modo, l'algoritmo ottiene un feedback piuttosto rapido in ogni angolo per stabilire se c'è un problema con la sequenza scelta. Mentre si posizionano i rettangoli, la logica continua a guardare per vedere se si sviluppano spazi vuoti troppo stretti per qualsiasi rettangolo. Dopo che il perimetro è stato popolato con successo, la strategia cambia nel tentativo di abbinare lo spazio rimanente con i rettangoli rimanenti (funzione match).
Un'altra cosa che potrebbe essere interessante è che questo implementa transazioni con rollback per le pile di rettangoli.
Questo programma non cerca di trovare la migliore misura possibile. Viene assegnato un budget (64) e si chiude quando trova la prima soluzione. Se non trova mai una soluzione, aumentiamo il budget (di 16) e riproviamo. Il tempo richiesto (su un laptop Dell con un processore I7) variava da meno di un minuto a 48 minuti per 150 di lato (149 di lato impiegava meno di 2 minuti). Tutte le 51 soluzioni hanno usato 11 rettangoli. I punteggi delle 51 soluzioni variavano da 41 a 78. Le ragioni per cui ho usato 11 rettangoli erano che il punteggio era inferiore rispetto a un numero inferiore di rettangoli e sembrava che 12 rettangoli avrebbero impiegato molto più dell'ora assegnata.
Le soluzioni e il codice sono disponibili all'indirizzo https://github.com/JaySpencerAnderson/mondrian . Sono i due file my4 *.
A proposito, se lo compili in "my4" ed eseguilo come segue: "./my4 -h", ti darà l'uso. Se vuoi vederlo in azione mentre lavora, prova qualcosa del tipo "./my4 -l 50 -n 8". Se si modifica quello "#if 0" in "#if 1", verrà visualizzato lo spazio rimanente sullo schermo. Se vuoi cambiarlo per renderizzare i rettangoli, cerca il punto in cui il codice esegue "grafico (spazio, lato)" e cambialo invece in "grafico (callstack, lato)". Suggerirei anche di modificare il budget iniziale da 64 a 32 se si desidera giocare con soluzioni per quadrati di circa 50 di larghezza. La soluzione per i quadrati più piccoli avrà un punteggio migliore con un budget inferiore.
Il seguente programma è funzionale. Controlla github per il codice completo (con utilizzo, commenti, ecc.).
#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;
}
}