| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 800925 | GoldLight | Quality Of Living (IOI10_quality) | C++17 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
void fast(){ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);cout.tie(0);}
const int N=3e4;
int pref[N+1][N+1];
int rectangle(int r, int c, int h, int w, int q[3001][3001]){
int n=r*c, m=h*w;
int ans=n, ki=1, ka=n;
while(ki<=ka){
int mid=(ki+ka)/2;
bool cek=false;
//count qij<=mid
for(int i=0; i<r; i++){
for(int j=0; j<c; j++){
pref[i+1][j+1]=(q[i][j]<=mid)+pref[i][j+1]+pref[i+1][j]-pref[i][j];
if(i>=h-1 && j>=w-1 && pref[i+1][j+1]-pref[i-h+1][j+1]-pref[i+1][j-w+1]+pref[i-h+1][j-w+1]>=m/2+1){
cek=true;
break;
}
}
}
if(cek){
ans=mid;
ka=mid-1;
}
else ki=mid+1;
}
return ans;
}
// int main(){
// int r, c, h, w; cin>>r>>c>>h>>w;
// for(int i=0; i<r; i++){
// for(int j=0; j<c; j++){
// cin>>q[i][j];
// }
// }
// cout<<rectangle(r, c, h, w);
// }