Submission #791430

#	Time	Username	Problem	Language	Result	Execution time	Memory
791430		ezzzay	Rectangles (IOI19_rect)	C++14	Compilation error	0 ms	0 KiB

rect

#include "rect.h"

long long count_rectangles(std::vector<std::vector<int> > a) {
	int n=a.size();
	int m=a[0].size();
	int cnt=0;
    for(int x1=1;x1<n-1;x1++){
        for(int y1=1;y1<m-1;y1++){
            for(int x2=x1;x2<n-1;x2++){
                for(int y2=y1;y2<m-1;y2++){
                    int c=1;
                    for(int i=x1;i<=x2;i++){//y
                    if(c==0)break;
                        for(int j=y1;j<=y2;j++){ //x
                            if(arr[i][j]>arr[i][y1-1] or arr[i][j]>arr[i][y2+1] or arr[i][j]>arr[x1-1][j] or arr[i][j]>arr[x2+1][j]){
                                c=0;
                                break;
                            }
                        }
                    }
                    cnt+=c;
                    
                }
            }
        }
    }
	return cnt;
}

Compilation message (stderr)

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:15:32: error: 'arr' was not declared in this scope
   15 |                             if(arr[i][j]>arr[i][y1-1] or arr[i][j]>arr[i][y2+1] or arr[i][j]>arr[x1-1][j] or arr[i][j]>arr[x2+1][j]){
      |                                ^~~