c语言用二维数组遍写杨辉三角

#include <stdio.h>

int main()
{
int rows, coef = 1;

printf("Enter the number of rows: ");
scanf("%d", &rows);

int triangle[rows][rows];

for(int i = 0; i < rows; i++)
{
for(int j = 0; j <= i; j++)
{
if(j == 0 || i == 0)
coef = 1;
else
coef = coef * (i - j + 1) / j;

triangle[i][j] = coef;
}
}

for(int i = 0; i < rows; i++)
{
for(int j = 0; j <= i; j++)
{
printf("%d ", triangle[i][j]);
}
printf("\n");
}

return 0;
}