Pagini recente » Cod sursa (job #208510) | Cod sursa (job #441176) | Cod sursa (job #2152340) | Cod sursa (job #1853025) | Cod sursa (job #2681854)
#include <iostream>
#include <fstream>
#include <deque>
using namespace std;
ifstream fin ("struti.in");
ofstream fout ("struti.out");
deque<int>hmin, hmax;
int v[1001][1001], mx[1001][1001], mn[1001][1001];
int rezmin=20101, nrapmin;
int n, m;
/*void afisare(int v[1001][1001])
{
int i, j;
for(i=1; i<=n; i++)
{
for(j=1; j<=m; j++)
{
cout<<v[i][j]<<' ';
}cout<<"\n";
}cout<<"\n";
}*/
void deque_coloane(int a, int b)
{
int i, j;
for(j=1; j<=m; j++)
{
hmin.clear(); hmax.clear();
for(i=1; i<=n; i++)
{
while(!hmax.empty()&&v[i][j]>=v[hmax.back()][j]) hmax.pop_back();
while(!hmin.empty()&&v[i][j]<=v[hmin.back()][j]) hmin.pop_back();
hmax.push_back(i);
hmin.push_back(i);
if(hmax.front()==i-a) hmax.pop_front();
if(hmin.front()==i-a) hmin.pop_front();
//cout<<"i= "<<i<<";j= "<<j<<"; hmin.front()= "<<hmin.front()<<"; hmax.front()= "<<hmax.front()<<"\n";
mx[i][j]=v[hmax.front()][j];
mn[i][j]=v[hmin.front()][j];
}
}
//afisare(mn); afisare(mx); cout<<"\n";
}
void deque_linii(int a, int b)
{
int i, j;
for(i=a; i<=n; i++)
{
hmin.clear(); hmax.clear();
for(j=1; j<=m; j++)
{
while(!hmax.empty()&&mx[i][j]>=mx[i][hmax.back()]) hmax.pop_back();
while(!hmin.empty()&&mn[i][j]<=mn[i][hmin.back()]) hmin.pop_back();
hmax.push_back(j);
hmin.push_back(j);
if(hmax.front()==j-b) hmax.pop_front();
if(hmin.front()==j-b) hmin.pop_front();
if(j>=b&&mx[i][hmax.front()]-mn[i][hmin.front()]<rezmin)
{
rezmin=mx[i][hmax.front()]-mn[i][hmin.front()];
nrapmin=1;
}
else if(j>=b&&mx[i][hmax.front()]-mn[i][hmin.front()]==rezmin)
{
nrapmin++;
}
}
}
}
int main()
{
int p, y, i, j, a, b;
fin>>n>>m>>p;
for(i=1; i<=n; i++)
{
for(j=1; j<=m; j++)
{
fin>>v[i][j];
}
}
for(y=1; y<=p; y++)
{
rezmin=20101;
nrapmin=0;
fin>>a>>b;
//solve(a, b);
deque_coloane(a, b);
deque_linii(a, b);
if(a!=b)
{
//solve(b, a);
deque_coloane(b, a);
deque_linii(b, a);
}
fout<<rezmin<<' '<<nrapmin<<"\n";
}
}