| Код | #include <stdio.h>
#include <stdlib.h>
int getElement(int* matrix, unsigned int row, unsigned int column, unsigned int n)
{
return matrix[row * n + column];
}
void setElement(int* matrix, unsigned int row, unsigned int column, unsigned int n, int value)
{
matrix[row * n + column] = value;
}
void setMatrix(int* matrix, const int n)
{
unsigned int row, column;
int value;
for (row = 0; row < n; ++row)
for (column = 0; column < n; ++column)
{
printf("a(%i, %i)=", row + 1, column + 1);
scanf("%i", &value);
setElement(matrix, row, column, n, value);
}
}
void printMatrix(int* matrix, const unsigned int n)
{
unsigned int row, column;
int value;
printf("A(%i, %i):\n", n, n);
for (row = 0; row < n; ++row)
{
for (column = 0; column < n; ++column)
{
value = getElement(matrix, row, column, n);
printf("a(%i,%i)=%i ", row + 1, column + 1, value);
}
printf("\n");
}
}
void sumColumns(int* matrix, const unsigned int n)
{
unsigned int row, column;
int value = 0;
printf("task1: summ values in columns:\n");
for (column = 0; column < n; ++column)
{
for (row = 0; row < n; ++row)
value = value + getElement(matrix, row, column, n);
printf("%i ", value);
value = 0;
}
printf("\n");
}
void task2(int* matrix, const unsigned int n)
{
printf("task 2\n");
unsigned int row, column;
int value = 0;
for (row = 0; row < n; ++row)
{
for (column = 0; column < n; ++column)
value = value + getElement(matrix, row, column, n);
value = value / n;
setElement(matrix, row, n - row - 1, n, value);
value = 0;
}
printMatrix(matrix, n);
}
int main (void)
{
unsigned int n;
int* a;
printf("N=");
scanf("%i", &n);
a = (int*)malloc(n * n * sizeof(int));
setMatrix(a, n);
printMatrix(a, n);
sumColumns(a, n);
task2(a, n);
free(a);
return 0;
} |
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