Submission #511027

#	Time	Username	Problem	Language	Result	Execution time	Memory
511027		tabr	Quality Of Living (IOI10_quality)	C++17	Compilation error	0 ms	0 KiB

quality

#include <bits/stdc++.h>
using namespace std;
#ifdef tabr
#include "library/debug.cpp"
#else
#define debug(...)
#endif

int rectangle(int r, int c, int h, int w, int **q) {
    int low = 0;
    int high = r * c;
    while (high - low > 1) {
        int mid = (high + low) / 2;
        int ok = 0;
        vector<vector<int>> pref(r + 1, vector<int>(c + 1));
        for (int i = 0; i < r; i++) {
            for (int j = 0; j < c; j++) {
                pref[i + 1][j + 1] = pref[i + 1][j] + pref[i][j + 1] - pref[i][j] + (q[i][j] >= mid);
            }
        }
        for (int i = 0; i <= r - h; i++) {
            for (int j = 0; j <= c - w; j++) {
                if (pref[i + h][j + w] - pref[i][j + 1] - pref[i + h][j] + pref[i][j] > h * w / 2) {
                    ok = 1;
                }
            }
        }
        if (ok) {
            low = mid;
        } else {
            high = mid;
        }
    }
    return low;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccSLKxPS.o: in function `main':
grader.cpp:(.text.startup+0xe9): undefined reference to `rectangle(int, int, int, int, int (*) [3001])'
collect2: error: ld returned 1 exit status