oj.uz

Submission #83712

# Submission time Handle Problem Language Result Execution time Memory
83712 2018-11-10T05:20:31 Z mra2322001 Luxury burrow (IZhO13_burrow) C++14
0 / 100
 704 ms 1840 KB 
#include <bits/stdc++.h>
#define f0(i, n) for(int i(0); i < (n); i++)
#define f1(i, n) for(int i(1); i <= n; i++)

using namespace std;
typedef long long ll;
const int N = 402;

int m, n, a[N][N], k, ma[N], now = 0;
int res = 0;

int calc(int k1, int k2, int cur){
    f1(i, n){
        int j = i;
        for(j; j <= n; j++){
            if(ma[j] >= cur) continue;
            else break;
        }
        --j;
        res = max(res, (k2 - k1 + 1)*(j - i + 1));
        i = j + 1;
    }
    return res;
}

bool check(int cur){
    res = 0;
    f1(i, m){
        f1(j, n) ma[j] = 1e9 + 100;
        for(int j = i; j <= m; j++){
            for(int x = 1; x <= n; x++){
                ma[x] = min(ma[x], a[j][x]);
            }
            res = max(res, calc(i, j, cur));
        }
    }
    if(res >= k) now = res;
    return res >= k;
}

int main(){
    ios_base::sync_with_stdio(0);

    cin >> m >> n >> k;
    f1(i, m) f1(j, n) cin >> a[i][j];

    int l = 1, r = 1e9 + 2, ans = 1;
    while(l <= r){
        int mid = (l + r)/2;
        if(check(mid)) l = mid + 1, ans = mid;
        else r = mid - 1;
    }
    cout << ans << " " << now;
}

Compilation message

burrow.cpp: In function 'int calc(int, int, int)':
burrow.cpp:15:14: warning: statement has no effect [-Wunused-value]
         for(j; j <= n; 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 452 KB Output is correct
3 Correct 2 ms 452 KB Output is correct
4 Correct 2 ms 452 KB Output is correct
5 Correct 3 ms 452 KB Output is correct
6 Correct 5 ms 456 KB Output is correct
7 Correct 2 ms 456 KB Output is correct
8 Correct 62 ms 796 KB Output is correct
9 Correct 174 ms 796 KB Output is correct
10 Correct 313 ms 844 KB Output is correct
11 Correct 704 ms 1024 KB Output is correct
12 Runtime error 14 ms 1840 KB Execution killed with signal 11 (could be triggered by violating memory limits)
13 Halted 0 ms 0 KB -