Submission #75964

#	Time	Username	Problem	Language	Result	Execution time	Memory
75964		Vardanyan	Luxury burrow (IZhO13_burrow)	C++14	0 / 100	2051 ms	4128 KiB

burrow

#include <bits/stdc++.h>
using namespace std;
const int N = 1005;
int t[N][4*N];
int a[N][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 main(){
    int n,m,k;
    scanf("%d%d%d",&n,&m,&k);
    for(int i = 1;i<=n;i++){
        for(int j = 1;j<=m;j++) scanf("%d",&a[i][j]);
        build(i,1,1,m);
    }
    int mxans = 0;
    int mxs = k;
    for(int i = 1;i<=n;i++){
        for(int j = 1;j<=m;j++){
                if(a[i][j]<mxans) continue;
            for(int jj = j;jj<=m;jj++){
                /*if(j == 1 && jj == m){
                    cout<<0<<endl;
                }*/
                int mnnow = 1000*1000*1000+5;
                bool f = false;
                for(int ii = i;ii<=n;ii++){
                    mnnow = min(mnnow,query(ii,1,1,m,j,jj));
                    if(mnnow<mxans) break;
                    /*if(mnnow<mxans){
                        f = true;
                        continue;
                    //    break;
                    }*/
                    int s = (jj-j+1)*(ii-i+1);
                    if(mnnow == mxans){
                        if(s>=mxs){
                            mxs = s;
                        }
                    }
                    if(mnnow>mxans){
                        if(s>=k){
                            mxs = s;
                            mxans = mnnow;
                        }
                    }
                }
                if(f) break;
            }
        }
    }
    cout<<mxans<<" "<<mxs<<endl;
    return 0;
}

Compilation message (stderr)

burrow.cpp: In function 'int main()':
burrow.cpp:24:10: 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:26:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         for(int j = 1;j<=m;j++) scanf("%d",&a[i][j]);
                                 ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 0 / 100