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Initial_array.c
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Initial_array.c
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#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
int main(int *argc, char *argv[])
{
int m, n, i, j; // k denote as maximum iteration // j denote as print interation
int *array;
int index[2];
FILE *fw;
srand(time(NULL));
/*
printf("What is the number of row (m) for a array?\n");
scanf("%d", &m);
printf("What is the number of colume (n) for a array \n?");
scanf("%d", &n);
*/
m = atoi(argv[1]);
n = atoi(argv[2]);
printf("After reading from the command line argument row(m) = %d, colume(n) = %d", m, n);
// Dynamic allocation for an array
array = (int *) malloc(sizeof(int)*(m*n));
index[0] = m;
index[1] = n;
printf("m=%d, n=%d\n", index[0], index[1]);
for (i=0; i<m; i++)
{
for (j=0; j<n; j++)
{
array[i*n+j] = (int) rand() % 2;
//printf("the array[%d] = %d\n", i*n+j, array[i*n+j]);
}
}
fw = fopen("initial_array.out", "wb");
if (fw == NULL)
{
printf("Error writing\n");
exit(1);
}
fwrite(&array[0], sizeof(int), m*n, fw);
fclose(fw);
fflush(fw);
fw = fopen("index.out", "wb");
if (fw == NULL)
{
printf("Error writing\n");
exit(1);
}
fwrite(&index[0], sizeof(int), 2, fw);
fclose(fw);
fflush(fw);
free(array);
return 0;
}