#include <stdio.h>
#define N 6
main()
{int i,j,a[N][N];
a[0][0]=1;
for(j=1;j<=N;j++)printf(" ");
printf("%4d\n",a[0][0]);
for(i=1;i<N;i++)
{ for(j=1;j<=N-i;j++)printf(" ");
a[i][0]=1;
printf("%4d",a[i][0]);
for(j=1;j<N;j++)
{a[i][j]=a[i-1][j-1]+a[i-1][j];
printf(a[i][j]?"%4d":" ",a[i][j]);
}
printf("\n");
}
}
等腰
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