Cod sursa(job #261846)

Utilizator znakeuJurba Andrei znakeu Data 18 februarie 2009 20:05:58
Problema Struti Scor 70
Compilator cpp Status done
Runda Arhiva de probleme Marime 2.13 kb
#include <stdio.h>
#include <stdlib.h>
#define MAXN 1024
struct toxicpie
{
	int v,p;
};

int v[MAXN][MAXN];
int T1[MAXN][MAXN];
int T2[MAXN][MAXN];
toxicpie D1[MAXN];
toxicpie D2[MAXN];

int M,N,P,m=0,r=0;

void chestie2(int X, int Y)
{
	int i,j,L1=0,L2=0,R1=0,R2=0,tt=0;
	
	m=-1; r=0;
	
	for (j=1; j<=M; ++j)
	{
		L1=L2=1; R1=R2=0;
		for (i=1; i<X; ++i)
		{
			while (L1<=R1 && v[i][j] >= D1[R1].v) --R1;
			D1[++R1].p = i; D1[R1].v=v[i][j];
			while (L2<=R2 && v[i][j] <= D2[R2].v) --R2;
			D2[++R2].p = i; D2[R2].v=v[i][j];			
		}
		for (i=X; i<=N; ++i)
		{
			while (L1<=R1 && v[i][j] >=D1[R1].v) --R1;
			D1[++R1].p = i; D1[R1].v=v[i][j];
			while (L2<=R2 && v[i][j] <= D2[R2].v) --R2;
			D2[++R2].p = i; D2[R2].v=v[i][j];
			
			while (L1<=R1 && D1[L1].p <=i-X) ++L1;
			T1[i][j]=D1[L1].v;
			while (L2<=R2 && D2[L2].p <=i-X) ++L2;
			T2[i][j]=D2[L2].v;
		}
	}	
	
	for (i=X; i<=N; ++i)
	{
		L1=L2=1; R1=R2=0;
		for (j=1; j<Y; ++j)
		{
			while (L1 <= R1 && T1[i][j] >=  D1[R1].v ) --R1; 
			D1[++R1].p = j; D1[R1].v = T1[i][j];
			while (L2 <= R2 && T2[i][j] <=  D2[R2].v ) --R2; 
			D2[++R2].p = j; D2[R2].v = T2[i][j];
		}		
		for (j=Y; j<=M; ++j)
		{
			while (L1 <= R1 && T1[i][j] >=  D1[R1].v ) --R1; 
			D1[++R1].p = j; D1[R1].v = T1[i][j];
			while (L2 <= R2 && T2[i][j] <=  D2[R2].v ) --R2; 
			D2[++R2].p = j; D2[R2].v = T2[i][j];
			
			while (L1<=R1 && D1[L1].p <=j-Y) ++L1;
			while (L2<=R2 && D2[L2].p <=j-Y) ++L2;
			T1[i][j]=D1[L1].v;
			T2[i][j]=D2[L2].v;
			
			tt=D1[L1].v - D2[L2].v;			
			if (tt==m) r++;
			if (m==-1 || tt<m) {m=tt; r=1;}			
		}
	}	
}

void citire()
{
	int i,j,m2,r2,X,Y;
	
	scanf("%d%d%d",&N,&M,&P);
	
	for (i=1; i<=N; ++i)
		for (j=1; j<=M; ++j)
			scanf("%d",&v[i][j]);
	
	for (i=0; i<P; ++i)
	{
		scanf("%d%d",&X,&Y);
		
		chestie2(X,Y); m2=m; r2=r;
		if (X!=Y)
		{
			chestie2(Y,X);
			if (m2==m) r2+=r;
			if (m2>m) { m2=m; r2=r;}		
		}
		
		printf("%d %d\n",m2,r2);		
	}	
}


int main()
{
	freopen("struti.in","r",stdin);
	freopen("struti.out","w",stdout);
	
	citire();	
	
	fclose(stdin);
	fclose(stdout);
	return 0;
}