#include <stdio.h>
void main() 
{
    int yanghui[10][10] = {0};
    int i, j;
    for (i = 0; i < 10; i++) 
    {
        yanghui[i][0] = 1;   
        yanghui[i][i] = 1;    
    }
    for (i = 2; i < 10; i++) 
    {
        for (j = 1; j < i; j++) 
        {
            yanghui[i][j] = yanghui[i - 1][j - 1] + yanghui[i - 1][j];
        }
    }
    for (i = 0; i < 10; i++) 
    {
        for (j = 0; j <= i; j++) 
        {
            printf("%d ", yanghui[i][j]);
        }
        printf("\n");
    }
}

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