#include <bits/stdc++.h>
using namespace std;
const int mxN=1000;
int n, m, k, a[mxN][mxN], lb=1, rb=1e9, mb, a2, a3, b[2][mxN], l[mxN], r[mxN];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m >> k;
for(int i=0; i<n; ++i)
for(int j=0; j<m; ++j)
cin >> a[i][j];
while(lb<=rb) {
mb=(lb+rb)/2, a3=0;
memset(b[n&1], 0, 4*m);
for(int i=n-1; i>=0; --i) {
for(int j=0; j<m; ++j)
b[i&1][j]=a[i][j]<mb?0:b[i&1^1][j]+1;
for(int j=0; j<m; ++j) {
l[j]=j-1;
while(l[j]>=0&&b[i&1][l[j]]>=b[i&1][j])
l[j]=l[l[j]];
}
for(int j=m-1; j>=0; --j) {
r[j]=j+1;
while(r[j]<m&&b[i&1][r[j]]>=b[i&1][j])
r[j]=r[r[j]];
a3=max(b[i][j]*(r[j]-l[j]-1), a3);
}
}
if(a3>=k) {
lb=mb+1;
a2=a3;
} else
rb=mb-1;
}
cout << rb << " " << a2;
}
Compilation message
burrow.cpp: In function 'int main()':
burrow.cpp:20:31: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
b[i&1][j]=a[i][j]<mb?0:b[i&1^1][j]+1;
~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
