DIFMIN

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
  int a[100][100],c1,c2,n,i,j,v[100],mini;

  cout<<"n=";cin>>n;
  for (i=0;i<n;i++)
    for (j=0;j<n;j++)
    cin>>a[i][j];
  cout<<"c1=";cin>>c1;
  cout<<"c2=";cin>>c2;
  mini=a[c1][0];
  for (i=1;i<n;i++)
  if (mini>a[c1][i])
 mini=a[c1][i];

for (i=0;i<n;i++)
v[i]=abs(mini-a[c2][i]);
mini=v[0];
for (j=1;j<n;j++)
    if (mini>v[j])
   mini=v[j];

cout<<mini;
    return 0;//
}