Pagini recente » Cod sursa (job #190883) | Cod sursa (job #1981777) | Cod sursa (job #1324737) | Cod sursa (job #2730895) | Cod sursa (job #2684220)
#include <bits/stdc++.h>
#define NMAX 1005
using namespace std;
/************************************************/
/// PARSARE
class InParser {
private:
FILE *f;
char *buff;
int sp;
char read_ch() {
++sp;
if (sp == 4096) {
sp = 0;
fread(buff, 1, 4096, f);
}
return buff[sp];
}
public:
InParser(const char* nume) {
f = fopen(nume, "r");
buff = new char[4096]();
sp = 4095;
}
InParser& operator >> (int &n) {
char c;
while (!isdigit(c = read_ch()) && c != '-');
int sgn = 1;
if (c == '-') {
n = 0;
sgn = -1;
} else {
n = c - '0';
}
while (isdigit(c = read_ch())) {
n = 10 * n + c - '0';
}
n *= sgn;
return *this;
}
InParser& operator >> (long long &n) {
char c;
n = 0;
while (!isdigit(c = read_ch()) && c != '-');
long long sgn = 1;
if (c == '-') {
n = 0;
sgn = -1;
} else {
n = c - '0';
}
while (isdigit(c = read_ch())) {
n = 10 * n + c - '0';
}
n *= sgn;
return *this;
}
};
/************************************************/
/// INPUT / OUTPUT
InParser f("struti.in");
ofstream g("struti.out");
/************************************************/
/// GLOBAL DECLARATIONS
int N, M, P, land[NMAX][NMAX], ap, minDiff, minMat[NMAX][NMAX], maxMat[NMAX][NMAX];
int a,b;
deque < int > minDq;
deque < int > maxDq;
/************************************************/
/// FUNCTIONS
void ReadInput();
void Solution();
/************************************************/
///--------------------------------------------------------------------
inline void ReadInput()
{
f >> N >> M >> P;
for(int i = 1 ; i <= N ; ++ i)
for(int j = 1 ; j <= M ; ++ j)
f >> land[i][j];
}
///--------------------------------------------------------------------
void GetAnswer(const int a, const int b)
{
/// WE CREATE THE MINMAT AND MAXMAT
for(int j = 1 ; j <= M ; ++ j)
{
minDq.clear();
maxDq.clear();
for(int i = 1 ; i <= N ; ++ i)
{
while(!maxDq.empty() && land[maxDq.back()][j] <= land[i][j]) maxDq.pop_back();
while(!minDq.empty() && land[minDq.back()][j] >= land[i][j]) minDq.pop_back();
minDq.push_back(i);
maxDq.push_back(i);
if(minDq.front() == i - a) minDq.pop_front();
if(maxDq.front() == i - a) maxDq.pop_front();
maxMat[i][j] = land[maxDq.front()][j];
minMat[i][j] = land[minDq.front()][j];
}
}
/// DEQUE ON MINMAT AND MAXMAT
for(int i = a ; i <= N; ++ i)
{
minDq.clear();
maxDq.clear();
for(int j = 1 ; j <= M ; ++ j)
{
while(!maxDq.empty() && maxMat[i][maxDq.back()] <= maxMat[i][j]) maxDq.pop_back();
while(!minDq.empty() && minMat[i][minDq.back()] >= minMat[i][j]) minDq.pop_back();
maxDq.push_back(j);
minDq.push_back(j);
if(maxDq.front() == j - b) maxDq.pop_front();
if(minDq.front() == j - b) minDq.pop_front();
if(j >= b && minDiff > (maxMat[i][maxDq.front()] - minMat[i][minDq.front()]))
{
minDiff = maxMat[i][maxDq.front()] - minMat[i][minDq.front()];
ap = 1;
}
else if(j >= b && (maxMat[i][maxDq.front()] - minMat[i][minDq.front()]) == minDiff)
{
ap++;
}
}
}
}
///--------------------------------------------------------------------
inline void Solution()
{
while(P--)
{
minDiff =21000;
ap = 0;
f >> a >> b;
GetAnswer(a, b);
if(a != b)
{
GetAnswer(b, a);
}
g << minDiff << " " << ap << "\n";
}
}
///--------------------------------------------------------------------
int main()
{
ReadInput();
Solution();
return 0;
}