#include "stdio.h"

main()
{
unsigned int i, j, K, M, N;
int Sum, Prod;
printf("Enter matrix size: ");
scanf("%i %i", &M, &N);
int **A = new int*[M];
puts("Enter matrix: ");
 for (i=0; i<M; i++)
 {
 A[i] = new int[N];
  for (j=0; j<N; j++)
  scanf("%i", &A[i][j]);
 }
puts("Enter column number: ");
scanf("%u", &K);
 for (i=0, Sum=0, Prod=1; i<M; i++)
 {
 Sum += A[i][K-1];
 Prod *= A[i][K-1];
 }
printf("Sum = %i Product = %i", Sum, Prod);
}

#include "stdio.h"

main()
{
unsigned int i, j, M, N;
printf("Enter matrix size: ");
scanf("%i %i", &M, &N);
int **A = new int*[M];
puts("Enter matrix: ");
 for (i=0; i<M; i++)
 {
 A[i] = new int[N];
  for (j=0; j<N; j++)
  scanf("%i", &A[i][j]);
 }
int *Max = new int[N];
 for (j=0; j<N; j++)
 {
 Max[j] = A[0][j];
  for (i=1; i<M; i++)
   if (A[i][j]>Max[j]) Max[j] = A[i][j];
 }
printf("Column maximums:");
 for (j=0; j<N; j++)
 printf(" %i", Max[j]);
}