int nr_sa(int a[100][100],int n,int m)
{
    int minl,minc,maxl,maxc,nr=0;
    for(int i=0;i<n;i++) ///iau linia i
    {
        maxl=a[i][0];minl=a[i][0];
        for(int j=0;j<m;j++) ///o parcurg folosind toate coloanele j
        {
            if(a[i][j]>maxl){ maxl=a[i][j];}
            if(a[i][j]<minl){ minl=a[i][j];}
        }
        ///am maxim linia i, min linia i
        for(int j=0;j<m;j++)
        {
            minc=a[0][j]; maxc=a[0][j];
            for(int k=0;k<n;k++)  ///linia k
                {
                    if(a[k][j]>maxc){ maxc=a[k][j];}
                    if(a[k][j]<minc){ minc=a[k][j];}
                }
                ///am maxim col j, minim col j
            if(minl==maxc || maxl==minc) {
                    nr++;}
        }
    }
    return nr;
}