Răspuns:
#include<iostream>
using namespace std;
int main()
{
int n,m,i,j,a[101][101],x,ok;
cin>>n>>m;
for(i=1;i<=n;i++)
for(j=1;j<=m;j++)
cin>>a[i][j];
cin>>x;
ok=0;
for(i=1;i<=n && ok==0;i++)
{
if(a[i][1]==x || a[i][m]==x)
ok=1;
}
for(j=1;j<=m && ok==0;j++)
{
if(a[1][j]==x || a[n][j]==x)
ok=1;
}
if(ok)
cout<<"DA";
else
cout<<"NU";
}
Explicație:
