제출 #427258

#제출 시각아이디문제언어결과실행 시간메모리
427258APROHACKRectangles (IOI19_rect)C++14
0 / 100
5 ms460 KiB
#include "rect.h" #include <bits/stdc++.h> using namespace std; long long count_rectangles(std::vector<std::vector<int> > a) { long long n=a.size(), m=a[0].size(); //cout<<n<<m<<endl; long long rta = 0; for(int i = 1 ; i < m-1 ; i++){ int mx=0; for(int j = i ; j< m-1 ; j++){ mx=max(a[1][j], mx); if(a[1][j]>=a[0][j]||a[1][j]>=a[2][j]||a[1][j]>=a[1][i-1])break; if(mx<a[1][j+1])rta++; } } return rta; }

컴파일 시 표준 에러 (stderr) 메시지

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:5:12: warning: unused variable 'n' [-Wunused-variable]
    5 |  long long n=a.size(), m=a[0].size();
      |            ^
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