#include <bits/stdc++.h>
#define f0(i, n) for(int i(0); i < (n); i++)
#define f1(i, n) for(int i(1); i <= n; i++)
using namespace std;
typedef long long ll;
const int N = 402;
int n, k, a[N][N], m, l[N], r[N], b[N], cur = 0;
vector <int> v;
bool check(int x){
f1(i, n) b[i] = 0;
int res = 0;
stack <int> s;
f1(i, m){
f1(j, n){
if(a[i][j] >= x) b[j]++;
else b[j] = 0;
}
f1(j, n){
while(s.size() && b[s.top()] >= b[j]) s.pop();
if(s.size()) l[j] = s.top() + 1;
else l[j] = 1;
s.push(j);
}
while(s.size()) s.pop();
for(int j = n; j >= 1; j--){
while(s.size() && b[s.top()] >= b[j]) s.pop();
if(s.size()) r[j] = s.top() - 1;
else r[j] = n;
s.push(j);
}
f1(j, n){
res = max(res, (r[j] - l[j] + 1)*b[j]);
}
}
if(res >= k){
cur = res;
return 1;
}
return 0;
}
int main(){
ios_base::sync_with_stdio(0);
cin >> m >> n >> k;
f1(i, m) f1(j, n) { cin >> a[i][j]; v.emplace_back(a[i][j]); }
sort(v.begin(), v.end());
v.erase(unique(v.begin(), v.end()), v.end());
int l = 0, r = v.size() - 1, ans = 0;
while(l <= r){
int mid = (l + r)/2;
if(check(v[mid])) l = mid + 1, ans = mid;
else r = mid - 1;
}
cout << v[ans] << " " << cur;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Incorrect |
2 ms |
512 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
