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Cod sursa(job #427569)
#include <cstdio>
#include <cstring>
#include <algorithm>
#define SIRMAX 70000
const int INF = 1500000000;
const int NMAX = 1011;
const int MMAX = 1011;
int st[NMAX][MMAX];
int fmin[MMAX];
int bmin[MMAX];
int ST[NMAX][MMAX];
int fmax[MMAX];
int bmax[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");
}*/
void initializari()
{
for(int i = 1 ; i <= N ; i++)
{
fmax[i] = 1;
bmax[i] = 0;
fmin[i] = 1;
bmin[i] = 0;
}
}
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;
f = 1, b = 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 deque(int x, int y)
{
initializari();
for(int i = 1 ; i <= N ; i++)
for(int j = 1 ; j <= M ; j++)
{
while(fmax[j] <= bmax[j] && A[ST[bmax[j]][j]][j] <= A[i][j])
bmax[j]--;
ST[++bmax[j]][j] = i;
while(ST[fmax[j]][j] <= i - x)
fmax[j]++;
while(fmin[j] <= bmin[j] && A[st[bmin[j]][j]][j] >= A[i][j])
bmin[j]--;
st[++bmin[j]][j] = i;
while(st[fmin[j]][j] <= i - x)
fmin[j]++;
if(i >= x)
{
MX[i][j] = A[ST[fmax[j]][j]][j];
m[i][j] = A[st[fmin[j]][j]][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)
{
deque(x, y);
printf("%d %d\n",linii(x, y), NR);
}
else
{
deque(x, y);
//scrie();
int p = linii(x, y), NR2 = NR;
deque(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;
}