oj.uz

Submission #75995

# Submission time Handle Problem Language Result Execution time Memory
75995 2018-09-11T18:57:29 Z Vardanyan Luxury burrow (IZhO13_burrow) C++14
0 / 100
 2000 ms 5552 KB 
#pragma GCC optimize "-O3"
#include <bits/stdc++.h>
using namespace std;
const int N = 1005;
//int t[N][4*N];
int b[N][N];
int a[N][N];
int L[N];
int R[N];
/*
void build(int row,int v,int l,int r){
    if(l == r){
        t[row][v] = a[row][l];
        return;
    }
    int m = (l+r)/2;
    build(row,v*2,l,m);
    build(row,v*2+1,m+1,r);
    t[row][v] = min(t[row][v*2],t[row][v*2+1]);
}
int query(int row,int v,int s,int e,int l,int r){
    if(l>r) return 1000*1000*1000+5;
    if(s == l && e == r) return t[row][v];
    int m = (s+e)/2;
    return min(query(row,v*2,s,m,l,min(m,r)),query(row,v*2+1,m+1,e,max(l,m+1),r));
}*/
int n,m,k;
inline int get(int x){
    int mxs = 0;
    for(int i = 1;i<=n;i++){
        for(int j = 1;j<=m;j++){
            if(b[i][j] >= x) a[i][j] = a[i-1][j]+1;
            else a[i][j] = 0;
        }
    }
    for(int i = 1;i<=n;i++){
        memset(L,0,sizeof(L));
        memset(R,0,sizeof(R));
        for(int j = 1;j<=m;j++){
            int u = a[i][j];
            int l = j,r = j;
            while(r<m){
                    if(R[r]>r) r = R[r];
                    else r++;
                    if(a[i][r]<u){
                        r--;
                        break;
                    }
            }
            while(l>1){
                if(L[l]<l && L[l]) l = L[l];
                else l--;
                if(a[i][l]<u){
                    l++;
                    break;
                }
            }
            u*=(r-l+1);
            mxs = max(mxs,u);
            L[j] = l;
            R[j] = r;
        }
    }
    return mxs;
}
int main(){
    scanf("%d%d%d",&n,&m,&k);
    vector<int> all;
    map<int,int> mp;
    for(int i = 1;i<=n;i++){
        for(int j = 1;j<=m;j++){
                scanf("%d",&b[i][j]);
              //if(!mp[b[i][j]]){ 
                all.push_back(b[i][j]);
                //mp[b[i][j]] = 1;
                //}
        }
    }
    sort(all.begin(),all.end());
    int l = 0;
    int r = all.size()-1;
    int ans = 0;
    int mxs = k;
    while(l<=r){
        int m = (l+r)/2;
        int y = get(all[m]);
        if(y>=k){
            ans = m;
            mxs = y;
            l = m+1;
        }
        else r = m-1;
    }
    cout<<all[ans]<<" "<<mxs<<endl;
    return 0;
}

Compilation message

burrow.cpp: In function 'int main()':
burrow.cpp:67:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d",&n,&m,&k);
     ~~~~~^~~~~~~~~~~~~~~~~~~
burrow.cpp:72:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
                 scanf("%d",&b[i][j]);
                 ~~~~~^~~~~~~~~~~~~~~

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 508 KB Output is correct
3 Correct 2 ms 508 KB Output is correct
4 Correct 2 ms 552 KB Output is correct
5 Correct 3 ms 720 KB Output is correct
6 Correct 4 ms 896 KB Output is correct
7 Correct 3 ms 896 KB Output is correct
8 Correct 12 ms 1424 KB Output is correct
9 Correct 21 ms 2368 KB Output is correct
10 Correct 193 ms 2452 KB Output is correct
11 Correct 83 ms 2872 KB Output is correct
12 Correct 49 ms 4808 KB Output is correct
13 Correct 536 ms 4808 KB Output is correct
14 Correct 260 ms 4808 KB Output is correct
15 Correct 279 ms 4808 KB Output is correct
16 Correct 273 ms 4808 KB Output is correct
17 Execution timed out 2054 ms 5552 KB Time limit exceeded
18 Halted 0 ms 0 KB -