16~~杨辉三角

int tri[35][35] = {};

for (int i = 1; i <= n; i++)
{
tri[i][1]=1;
tri[i][i]=1;

for (int j = 2; j < i; j++)//j<i 每行有i个元素
{
tri[i][j] = tri[i-1][j-1] + tri[i-1][j];
}
}
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= i; j++)
printf("%d ", tri[i][j]);
printf("\n");
}

bug： int tri[35][35] = {1}; 〤〤〤〤〤〤〤 该打 拖出去杖毙！！！！！！