#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define ll long long
#define ld long double
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define SZ(x) (int)(x).size()
template <typename T> using ord_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int n0 = 1003;
int n, m, k, a[n0][n0], dp[n0], l[n0], r[n0];
vector <int> v;
int get(int x) {
int res = 0;
for (int j = 1; j <= m; j++) {
for (int i = 1; i <= n; i++)
dp[i] = (a[i][j] >= x) ? (dp[i] + 1) : 0;
v.clear();
for (int i = 1; i <= n; i++) {
while (!v.empty() && dp[v.back()] >= dp[i])
v.pop_back();
if (v.empty()) l[i] = 1;
else l[i] = v.back() + 1;
v.pb(i);
}
v.clear();
for (int i = n; i >= 1; i--) {
while (!v.empty() && dp[v.back()] >= dp[i])
v.pop_back();
if (v.empty()) r[i] = n;
else r[i] = v.back() - 1;
v.pb(i);
res = max(res, (r[i] - l[i] + 1) * dp[i]);
}
}
return res;
}
int main() {
ios_base::sync_with_stdio(false), cin.tie(NULL);
#ifdef LOCAL
freopen("input.txt", "r", stdin);
#endif
cin >> n >> m >> k;
for (int i = 1; i <= n; i++)
for (int j = 1; j <= m; j++)
cin >> a[i][j];
int l = 1, r = (int)1e9 + 1;
while (l < r - 1) {
int mid = l + r >> 1;
if (get(mid) >= k) l = mid;
else r = mid;
}
cout << l << ' ' << get(l);
}
Compilation message
burrow.cpp: In function 'int main()':
burrow.cpp:56:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int mid = l + r >> 1;
~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
384 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
