本题要求实现函数输出n行数字金字塔。

 C程序

#include <stdio.h>
#include <stdlib.h>

/*
// 浙大版C语言PAT 求m到n的和

int sum(int m , int n);

int main()
{
    int m,n;
    scanf("%d %d",&m,&n);
    printf("sum = %d\n",sum(m,n));
    return 0 ;
}

int sum(m ,n)
{
    int sum=0,i;
    for(i = m; i<=n; i++ )
    {
        sum += i;
    }
    return sum;
}
*/

/*取最大值
int max(int a,int b);

int main()
{
    int a,b;
    scanf("%d %d",&a,&b);
    printf("max = %d\n",max(a,b));
    return 0 ;
}

int max(int a,int b)
{
    if(a>=b)
        return a;
    else
        return b;
}
*/

// 实现输出n行数字金字塔

void pyramid(int n);
int main()
{
    int n;
    scanf("%d",&n);
    pyramid(n);
   // printf("i am C");
    return 0 ;
}

void pyramid(int n)
{
    int i,j,k;
    for(i = 1;i<=n;i++)
    {
        for(j = 1;j<=n-i;j++)
        {
            printf(" ");
        }
        for(k = 1;k<=i;k++)
        {
            printf("%d ",i);
        }
        printf("\n");
    }


}

C++:

#include <iostream>
#include <iomanip>

using namespace std;
void pyramid(int n);
int main()
{
    int n;
    cin>>n;
    pyramid(n);
    //cout<<"i am C++";
    return 0 ;
}

void pyramid(int n)
{
    int i,j,k;
    for(i = 1;i<=n;i++)
    {
        for(j = 1;j<=n-i;j++)
        {
            cout <<" ";
        }
        for(k = 1;k<=i;k++)
        {
            cout <<i <<" ";
        }
        cout <<endl;
    }


}

Python:

# n = 5  # 这里是输出总行数
n = int(input("please input a num: "))
for i in range(1,n+1):
    for j in range(1,n-i+1):
        print(" ",end="")
        # print(" ")
    for k in range(1,i+1):
        print(i,end = " " )
    print("\n")