제출 #397986

#제출 시각아이디문제언어결과실행 시간메모리
397986snasibov05Rectangles (IOI19_rect)C++14
8 / 100
5062 ms22664 KiB
#include "rect.h" long long count_rectangles(std::vector<std::vector<int> > a) { int n = a.size(); int m = a[0].size(); long long ans = 0; for (int r1 = 1; r1 < n-1; ++r1) { for (int c1 = 1; c1 < m-1; ++c1) { for (int r2 = r1; r2 < n-1; ++r2) { for (int c2 = c1; c2 < m-1; ++c2) { bool flag = true; for (int i = r1; i <= r2; ++i) { for (int j = c1; j <= c2; ++j) { if (a[i][j] >= a[i][c1-1]) flag = false; if (a[i][j] >= a[i][c2+1]) flag = false; if (a[i][j] >= a[r1-1][j]) flag = false; if (a[i][j] >= a[r2+1][j]) flag = false; } } if (flag) ans++; } } } } return ans; }
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