#include <iostream>
#include <ctime>
using namespace std;
void vvod(int **a, int n, int m);
void vvod2(int **a, int n, int m);
void vivod(int **a, int n, int m);
int spstr(int **a, int n, int m, int n1, int n2);
int spstolb(int **a, int n, int m, int m1, int m2);
int main()
{
const int n=5,m=7;
int **a=new int *[n];
for (int i=0;i<n;i++) a[i]=new int[m];
cout<<"Vvedite matrix"<<endl; vvod2(a,n,m);
cout<<"Vvedennaya matrix"<<endl; vivod(a,n,m);
int n1,n2;
cout<<"Vvedite nomera strok ";
cin>>n1>>n2;
cout<<"Skalyarnoe pr-nie strok = "<<spstr(a,n,m,n1,n2)<<endl;
int m1,m2;
cout<<"Vvedite nomera stolbcov ";
cin>>m1>>m2;
cout<<"Skalyarnoe pr-nie stolbcov = "<<spstolb(a,n,m,m1,m2)<<endl;
for (int i=0;i<n;i++) delete []a[i];
delete a;
system("pause");
}
int spstolb(int **a, int n, int m, int m1, int m2)
{
int s=0;
for (int i=0;i<n;i++)
{
s=s+a[i][m1]*a[i][m2];
cout<<a[i][m1]<<"x"<<a[i][m2]<<" ";
}
cout<<endl;
return s;
}
int spstr(int **a, int n, int m, int n1, int n2)
{
int s=0;
for (int j=0;j<m;j++)
{
s=s+a[n1][j]*a[n2][j];
cout<<a[n1][j]<<"x"<<a[n2][j]<<" ";
}
cout<<endl;
return s;
}
void vvod(int **a, int n, int m)
{
for (int i=0;i<n;i++)
for (int j=0;j<m;j++)
cin>>a[i][j];
}
void vvod2(int **a, int n, int m)
{
srand(time(0));
for (int i=0;i<n;i++)
for (int j=0;j<m;j++)
a[i][j]=rand()%10;
}
void vivod(int **a, int n, int m)
{
for (int i=0;i<n;i++)
{
for (int j=0;j<m;j++)
cout<<a[i][j]<<" ";
cout<<endl;
}
}
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