Liên quan đến ma trận.

#include<iostream.h>
int main()
{
int m,n,i,j;
cout<<"nhap vao ma tran co m x n"<<endl;cin>>m;cin>>n;
int a[200][200];
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
{
cout<<"nhap vao a["<<i<<"]["<<j<<"]";
cin>>a[j];
}
cout<<endl;
}
//hien thi
int t1,t2,t3,t4;
for(i=0;i<m;i++)
{
int max=a[0],min=a[0];
for(j=0;j<n;j++)
if(a[j]<=min)
{
min=a[j];t1=i;t2=j;
}
else if(a[j]>=max)
{
max=a[j];t3=i;t4=j;
}
cout<<"gia tri nho nhat trong hang "<<i+1<<"la a["<<t1<<"]["<<t2<<"]"<<min<<endl;
cout<<"gia tri lon nhat trong hang "<<i+1<<"la a["<<t3<<"]["<<t4<<"]"<<max<<endl;
}
//theo hang min ,max
for(j=0;j<n;j++)
{
int max=a[0][j],min=a[0][j];
for(i=0;i<m;i++)
if(a[j]<=min)
{
min=a[j];t1=i;t2=j;
}
else if(a[j]>=max)
{
max=a[j];t3=i;t4=j;
}
cout<<"gia tri nho nhat trong cot "<<j+1<<"la a["<<t1<<"]["<<t2<<"]"<<min<<endl;
cout<<"gia tri lon nhat trong cot "<<j+1<<"la a["<<t3<<"]["<<t4<<"]"<<max<<endl;

}
// theo cot min,max
return 0;
}