题解 | #杨辉三角#
杨辉三角
https://www.nowcoder.com/practice/e671c6a913d448318a49be87850adbcc
#include <stdio.h>
long long facts (int x)
{
int i;
long long int sum=1;
for(i=1;i<=x;i++)
sum=sum*i;
return sum;
}
int compo(int n,int m)
{
int sum;
sum=facts(n)/facts(m)/facts(n-m);
return sum;
}
int main()
{
int n;
scanf("%d",&n);
int i,j;
for(i=0;i<n;i++)
{
for(j=0;j<=i;j++)
{
printf("%5d",compo(i,j));
}
printf("\n");
}
return 0;
}
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