Submission #367386

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
367386	2021-02-17T05:22:10 Z	ijxjdjd	Flood (IOI07_flood)	C++14	Compilation error	0 ms	0 KB

flood

using namespace std;
#include <bits/stdc++.h>
#include "quality.h"

#pragma GCC optimize ("Ofast")
#pragma GCC target("avx2")

#define FR(i, N) for (int i = 0; i < int(N); i++)
#define all(x) begin(x), end(x)
int pref[3001][3001];
pair<int, int> coords[3001*3001];
int rectangle(int R, int C, int H, int W, int Q[3001][3001]) {
    int low = 0;
    int high = R*C-1;
    FR(i, R){
        FR(j, C){
            coords[Q[i][j]-1] = {i, j};
        }
    }

    int base = H*W/2;
    while (low < high) {
        int mid = (low + high)/2;
        memset(pref, 0, sizeof(pref));
        FR(i, mid+1) {
            pref[coords[i].first][coords[i].second]++;
        }
        FR(i, R) {
            FR(j, C) {
                pref[i][j] += (i > 0 ? pref[i-1][j] : 0) + (j > 0 ? pref[i][j-1] : 0) - (i > 0 && j > 0 ? pref[i-1][j-1] : 0);
                if (pref[i][j] - (i >= H ? pref[i-H][j] : 0) - (j >= W ? pref[i][j-W] : 0) + (j >= W && i >= H ? pref[i-H][j-W] : 0) > base) {
                    high = mid;
                }
            }
        }
        if (high != mid) {
            low = mid+1;
        }
    }
    return high+1;
}

Compilation message

flood.cpp:3:10: fatal error: quality.h: No such file or directory
    3 | #include "quality.h"
      |          ^~~~~~~~~~~
compilation terminated.