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Cod sursa(job #427576)
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <deque>
using namespace std;
#define SIRMAX 70000
const int INF = 1500000000;
const int NMAX = 1011;
const int MMAX = 1011;
deque<int> st[MMAX];
deque<int> ST[MMAX];
int A[NMAX][MMAX];
int N, M, P;
int NR = 0;
int m[NMAX][MMAX];
int MX[NMAX][MMAX];
char c[SIRMAX];
void parsare()
{
int x, j;
for(int i = 1 ; i <= N ; i ++)
{
j = 0;
x = 0;
fgets(c,SIRMAX,stdin);
for(int k = 0 ; c[k] && c[k] != '\n' && c[k] != EOF ; k++)
if(c[k] == ' ')
{
A[i][++j] = x;
x = 0;
}
else
x = 10 * x + c[k] - '0';
if(x)
A[i][++j] = x;
}
}
void scrie()
{
for(int i = 1 ; i <= N ; i++)
{
for(int j = 1 ; j <= M ; j++)
printf("%d ",m[i][j]);
printf("\n");
}
printf("\n");
for(int i = 1 ; i <= N ; i++)
{
for(int j = 1 ; j <= M ; j++)
printf("%d ",MX[i][j]);
printf("\n");
}
printf("\n");
}
int linii(int x, int y)
{
NR = 0;
int val = INF;
int D[MMAX];
int F, B;
int d[MMAX];
int f, b;
for(int i = x ; i <= N ; i++)
{
F = 1, B = 0;
D[0] =0;
f = 1, b = 0;
d[0] = 0;
for(int j = 1 ; j <= M ; j++)
{
while(F <= B && MX[i][D[B]] <= MX[i][j])
B--;
D[++B] = j;
if(D[F] <= j - y)
F++;
while(f <= b && m[i][d[b]] >= m[i][j])
b--;
d[++b] = j;
while(d[f] <= j - y)
f++;
if(j >= y)
if(MX[i][D[F]] - m[i][d[f]] < val)
{
val = MX[i][D[F]] - m[i][d[f]];
NR = 1;
}
else if(MX[i][D[F]] - m[i][d[f]] == val)
NR++;
}
}
return val;
}
void dq(int x, int y)
{
for(int j = 1 ; j <= M ; j++)
{
ST[j].clear();
st[j].clear();
}
for(int i = 1 ; i <= N ; i++)
for(int j = 1 ; j <= M ; j++)
{
while(ST[j].size() && A[ST[j].back()][j] <= A[i][j])
ST[j].pop_back();
ST[j].push_back(i);
while(ST[j].front() <= i - x)
ST[j].pop_front();
while(st[j].size() && A[st[j].back()][j] >= A[i][j])
st[j].pop_back();
st[j].push_back(i);
while(st[j].front() <= i - x)
st[j].pop_front();
if(i >= x)
{
MX[i][j] = A[ST[j].front()][j];
m[i][j] = A[st[j].front()][j];
}
}
}
int main()
{
int x, y;
freopen("struti.in","r",stdin);
freopen("struti.out","w",stdout);
scanf("%d%d%d\n",&N,&M,&P);
parsare();
for(int k = 1 ; k <= P ; k++)
{
scanf("%d%d",&x,&y);
if(x == y)
{
dq(x, y);
printf("%d %d\n",linii(x, y), NR);
}
else
{
dq(x, y);
//scrie();
int p = linii(x, y), NR2 = NR;
dq(y, x);
int q = linii(y, x);
if(p < q)
printf("%d %d\n", p, NR2);
else if(p > q)
printf("%d %d\n", q, NR);
else
printf("%d %d\n", p, NR + NR2);
}
}
return 0;
}