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## Discussion of Problem 1188. Library

Can't get AC. Can anyone help me? Here's my src...
Posted by Alyosha Popovich 9 May 2002 15:42
#include <stdio.h>

struct shelf
{
int x, y, l, x1, x2;
} S[501];

int XN, YN, XT, YT;
int N;
long Ra = 666666, Rb;

void move(shelf s, int am, long &a, long &b)
{
int x;
a = b = 0;
s.x += am;
s.x1 -= am;
s.x2 -= am;

if (s.x < 0)
{
x = -s.x;
s.x += x;
s.x1 -= x;
s.x2 -= x;
s.l -= x;
b += x;
}
if (s.x + s.l > XN)
{
x = s.x + s.l - XN;
s.l -= x;
b += x;
}
if (s.x2 < 0 || s.x1 > s.l || s.l <= 0)
{
a += 2;
b += s.l;
return;
}
if (s.x1 < 0 || s.x2 > s.l)
{
a++;
return;
}
if (s.l/2 < s.x1)
b += 2 * (s.x1 - s.l/2);
else
if ((s.l+1)/2 > s.x2)
b += 2 * ((s.l+1)/2 - s.x2);
}

void taie(shelf s, int x, int y, long &a, long &b)
{
int px1, px2;
long a1, b1, a2, b2;
if (s.y <= y || s.y >= y+YT || s.x+s.l <= x || s.x >= x+XT)
return;
move(s, x+XT-s.x, a1, b1);
move(s, x-s.x-s.l, a2, b2);
if (a2 < a1 || (a2 == a1 && b2 < b1))
a1 = a2, b1 = b2;
a += a1, b += b1;
}

void incearca(int x, int y)
{
int i;
long a, b;
a = b = 0;
for (i = 1; i <= N; i++)
taie(S[i], x, y, a, b);
if (a < Ra || (a == Ra && b < Rb))
Ra = a, Rb = b;
}

void solve()
{
int i, x;
incearca(4, 1);
for (i = 1; i <= N; i++)
if (S[i].y+YT <= YN)
for (x = 0; x <= S[i].l-XT; x++)
incearca(S[i].x+x, S[i].y);
}

{
int i;
scanf("%d %d %d %d %d", &XN, &YN, &XT, &YT, &N);
for (i = 1; i <= N; i++)
scanf("%d %d %d %d %d", &S[i].y, &S[i].x, &S[i].l, &S[i].x1,
&S[i].x2);
}

void main()
{