oj.uz

답안 #75990

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
75990 2018-09-11T18:47:18 Z Vardanyan 호화 벙커 (IZhO13_burrow) C++14
0 / 100
 2000 ms 66560 KB 
#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;
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(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;
        }
        for(int j = m;j>=1;j--){
            int r = j;
            int u = a[i][j];
            while(r<m){
                    if(R[r]>r) r = R[r];
                    else r++;
                    if(a[i][r]<u){
                        r--;
                        break;
                    }
            }
            R[j] = r;
        }
        for(int j = 1;j<=m;j++)
        mxs = max(mxs,(R[j]-L[j]+1)*a[i][j]);
    }
    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 get(int)':
burrow.cpp:40:23: warning: unused variable 'r' [-Wunused-variable]
             int l = j,r = j;
                       ^
burrow.cpp: In function 'int main()':
burrow.cpp:73:10: 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:78:22: 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

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 500 KB Output is correct
3 Correct 2 ms 580 KB Output is correct
4 Correct 3 ms 608 KB Output is correct
5 Correct 3 ms 780 KB Output is correct
6 Correct 3 ms 796 KB Output is correct
7 Correct 2 ms 796 KB Output is correct
8 Correct 8 ms 1284 KB Output is correct
9 Correct 12 ms 2136 KB Output is correct
10 Correct 68 ms 4328 KB Output is correct
11 Correct 97 ms 5736 KB Output is correct
12 Correct 24 ms 5736 KB Output is correct
13 Correct 74 ms 5736 KB Output is correct
14 Correct 70 ms 5736 KB Output is correct
15 Correct 83 ms 5736 KB Output is correct
16 Correct 289 ms 11360 KB Output is correct
17 Correct 60 ms 11360 KB Output is correct
18 Correct 677 ms 23528 KB Output is correct
19 Correct 252 ms 23528 KB Output is correct
20 Correct 1419 ms 39392 KB Output is correct
21 Correct 1734 ms 47460 KB Output is correct
22 Execution timed out 2043 ms 66560 KB Time limit exceeded
23 Halted 0 ms 0 KB -