Submission #297105

#	Time	Username	Problem	Language	Result	Execution time	Memory
297105		daniel920712	Rectangles (IOI19_rect)	C++14	15 / 100	5100 ms	114840 KiB

rect

#include "rect.h"
#include <stdio.h>

using namespace std;
int can1[205][205][205]={0};
int can2[205][205][205]={0};
long long count_rectangles(vector< vector<int> > all)
{
    int N,M,i,j,k,l,m,n,big=0,ok;
    long long ans=0;
    N=all.size();
    M=all[0].size();
    for(i=0;i<N;i++)
    {
        for(j=1;j<M;j++)
        {
            big=0;
            for(k=j;k<M-1;k++)
            {
                big=max(big,all[i][k]);
                if(big<all[i][j-1]&&big<all[i][k+1]) can1[i][j][k]=1;
            }
        }
    }
    for(i=0;i<M;i++)
    {
        for(j=1;j<N;j++)
        {
            big=0;
            for(k=j;k<N-1;k++)
            {
                big=max(big,all[k][i]);
                if(big<all[j-1][i]&&big<all[k+1][i]) can2[i][j][k]=1;
            }
        }
    }
    for(i=1;i<N-1;i++)
    {
        for(j=i;j<N-1;j++)
        {
            for(k=1;k<M-1;k++)
            {
                for(l=k;l<M-1;l++)
                {
                    ok=1;
                    //for(m=i;m<=j;m++) for(n=k;n<=l;n++) ok=ok&&(all[m][n]<min(min(all[m][k-1],all[m][l+1]),min(all[i-1][n],all[j+1][n])));
                    for(m=i;m<=j;m++) ok=ok&&can1[m][k][l];
                    for(m=k;m<=l;m++) ok=ok&&can2[m][i][j];
                    if(ok) ans++;
                }
            }
        }
    }
	return ans;
}

Compilation message (stderr)

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:9:23: warning: unused variable 'n' [-Wunused-variable]
    9 |     int N,M,i,j,k,l,m,n,big=0,ok;
      |                       ^

• Subtask 1: 8 / 8
• Subtask 2: 7 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 22
• Subtask 5: 0 / 10
• Subtask 6: 0 / 13
• Subtask 7: 0 / 28