제출 #519471

#제출 시각아이디문제언어결과실행 시간메모리
519471fabijan_cikac삶의 질 (IOI10_quality)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; const int N = 3 * 1e3 + 100; int pref[N][N]; bool check(int x, int n, int m, int h, int w, int a[N][N]){ int px, py; for (int i = 0; i <= max(n, m); ++i){ pref[0][i] = 0; pref[i][0] = 0; } for (int i = 1; i <= n; ++i){ for (int j = 1; j <= m; ++j){ pref[i][j] = pref[i - 1][j] + pref[i][j - 1] - pref[i - 1][j - 1]; if (a[i - 1][j - 1] < x) --pref[i][j]; else if (a[i - 1][j - 1] > x) ++pref[i][j]; else{ px = i; py = j; } } } for (int i = 1; i <= n - h + 1; ++i){ for (int j = 1; j <= m - w + 1; ++j){ if (pref[i + h - 1][j + w - 1] - pref[i - 1][j + w - 1] - pref[i + h - 1][j - 1] + pref[i - 1][j - 1] <= 0 && (px >= i && px <= i + h - 1 && py >= j && py <= j + w - 1)) return 1; } } return 0; } int bins(int l, int r, int n, int m, int h, int w, int a[N][N]){ int mid = (l + r - 1) / 2; if (l == r) return l; else if (check(mid, n, m, h, w, a)) return bins(l, mid, n, m, h, w, a); return bins(mid + 1, r, n, m, h, w, a); } int rectangle(int R, int C, int H, int W, int Q[N][N]){ ios_base::sync_with_stdio(false); cin.tie(NULL); return bins(1, R * C, R, C, H, W, Q); }

컴파일 시 표준 에러 (stderr) 메시지

quality.cpp: In function 'bool check(int, int, int, int, int, int (*)[3100])':
quality.cpp:27:162: warning: 'py' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |             if (pref[i + h - 1][j + w - 1] - pref[i - 1][j + w - 1] - pref[i + h - 1][j - 1] + pref[i - 1][j - 1] <= 0 && (px >= i && px <= i + h - 1 && py >= j && py <= j + w - 1))
      |                                                                                                                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
quality.cpp:27:120: warning: 'px' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |             if (pref[i + h - 1][j + w - 1] - pref[i - 1][j + w - 1] - pref[i + h - 1][j - 1] + pref[i - 1][j - 1] <= 0 && (px >= i && px <= i + h - 1 && py >= j && py <= j + w - 1))
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccdCbWPf.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