#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define fr first
#define sc second
#define clr(a, x) memset(a, x, sizeof(a))
#define dbg(x) cout<<"("<<#x<<"): "<<x<<endl;
#define printvector(arr) for (auto it = arr.begin(); it != arr.end(); ++it) cout<<*it<<" "; cout<<endl;
#define all(v) v.begin(), v.end()
#define lcm(a, b) (a * b)/__gcd(a, b)
#define int long long int
#define printvecpairs(vec) for(auto it: vec) cout<<it.fr<<' '<<it.sc<<endl;
#define endl '\n'
#define float long double
const int MOD = 1e9 + 7;
const int INF = 2e15;
const int MAXN = 1e3 + 5;
int n, m, k;
int a[MAXN][MAXN], val[MAXN][MAXN];
int max_area(vector<int> vec){
stack<int> s;
int ans = 0;
int i = 0;
while(i < m){
if(s.empty()){
s.push(i);
} else {
if(vec[s.top()] > vec[i]){
int h = vec[s.top()];
s.pop();
int res;
if(s.empty()){
res = h * i;
} else {
res = h * (i-(s.top() +1));
}
ans = max(ans, res);
continue;
} else {
s.push(i);
}
}
i++;
}
while(!s.empty()){
int h = vec[s.top()];
s.pop();
int res;
if(s.empty()){
res = h * i;
} else {
res = h * (i-(s.top() +1));
}
ans = max(ans, res);
}
return ans;
}
int check(int x){
for(int i= 0;i<n;i++){
for(int j= 0;j<m;j++){
if(a[i][j] >= x){
val[i][j] = 1;
} else {
val[i][j]= 0;
}
}
}
vector<int> v;
for(int i=0;i<m;i++){
v.pb(val[0][i]);
}
int ans = max_area(v);
for(int i= 0;i<n;i++){
for(int j = 0;j<m;j++){
if(val[i][j] && i > 0){
val[i][j] += val[i - 1][j];
}
}
v.clear();
for(int j=0;j<m;j++){
v.pb(val[i][j]);
}
ans = max(ans, max_area(v));
}
return ans;
}
signed 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= 0;i<n;i++){
for(int j= 0;j<m;j++){
cin>>a[i][j];
}
}
int lo =0;
int ans= 0;
int hi = 1e9;
while(lo < hi){
int m = (lo + hi)/2;
int sz = check(m);
if(sz >= k){
lo = m+1;
ans = max(ans, m);
} else {
hi = m-1;
}
}
if(check(lo) >= k) ans = max(lo, ans);
if(check(hi) >= k) ans = max(hi, ans);
cout<<ans<<' '<<check(ans)<<endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
460 KB |
Output is correct |
5 |
Correct |
1 ms |
460 KB |
Output is correct |
6 |
Correct |
1 ms |
580 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
6 ms |
1228 KB |
Output is correct |
9 |
Correct |
10 ms |
2380 KB |
Output is correct |
10 |
Correct |
24 ms |
2764 KB |
Output is correct |
11 |
Correct |
38 ms |
3788 KB |
Output is correct |
12 |
Correct |
25 ms |
5276 KB |
Output is correct |
13 |
Correct |
31 ms |
2244 KB |
Output is correct |
14 |
Correct |
91 ms |
6604 KB |
Output is correct |
15 |
Correct |
80 ms |
6604 KB |
Output is correct |
16 |
Correct |
82 ms |
7116 KB |
Output is correct |
17 |
Correct |
107 ms |
8644 KB |
Output is correct |
18 |
Correct |
198 ms |
12560 KB |
Output is correct |
19 |
Correct |
271 ms |
13252 KB |
Output is correct |
20 |
Correct |
404 ms |
18364 KB |
Output is correct |
21 |
Correct |
431 ms |
20804 KB |
Output is correct |
22 |
Correct |
519 ms |
23372 KB |
Output is correct |
23 |
Correct |
513 ms |
23340 KB |
Output is correct |
24 |
Correct |
390 ms |
18172 KB |
Output is correct |
25 |
Correct |
465 ms |
18884 KB |
Output is correct |