#include<stdio.h>
#define ROWS 3
#define COLS 5
void twotimes_ar(int source[][COLS], int rows);
void output_ar(int source[][COLS], int rows);
int main(void)
{
int b[ROWS][COLS] = { 0 };
int a[ROWS][COLS] = {
{1,2,3,4,5},
{6,7,8,9,10},
{11,12,13,14,15}
};
twotimes_ar(a, ROWS);
output_ar(a, ROWS);
return 0;
}
void twotimes_ar(int source[][COLS], int rows)
{
int i, j;
for (i = 0; i < rows; i++)
{
for (j = 0; j < COLS; j++)
source[i][j] *= 2;
}
}
void output_ar(int source[][COLS], int rows)
{
int i, j;
for (i = 0; i < rows; i++) {
for (j = 0; j < COLS; j++)
{
printf("%d\t", source[i][j]);
}
printf("\n");
}
}
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