include <stdio.h> int main(){ int i=0,j=0,a[6][6]={{0}};for (i=0;i<6;i++)a[i][0]=a[i][i]=1;for (i=2;i<6;i++)for(j=1;j<i;j++)a[i][j]=a[i-1][j-1]+a[i-1][j];for (i=0;i<6;i++){ for (j=0;j<=i;j++)printf("%5d",a[i]...