牛客网C语言语法篇练习之习题集（3）

喜欢ヅ旅行 2023-09-29 12:01 4阅读 0赞

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16][]

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![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 1][]

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**目录**

1.小乐乐与进制转换（十进制转六进制）

2.\[NOIP2015\]金币(按规律计算金币个数)

3. 水仙花数(正常水仙花数的升级版)

4.翻转直角三角形图案(正着输出三角形你会，但反着输出你会吗)

5.带空格直角三角形图案+金字塔三角形(for的嵌套使用)

6. 小乐乐走台阶(一次走一阶台阶或两节台阶，算多少方法的问题)

7.函数实现计算一个数的阶乘(用递归实现数字的阶乘)

8. 牛牛的digit(输出后面的数字)

9.序列中删除指定数字

10. 有序序列合并

--------------------

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 2][]![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 3][]

## 1.小乐乐与进制转换（十进制转六进制） ##

链接 [小乐乐与进制转换\_牛客题霸\_牛客网 (nowcoder.com)][_nowcoder.com]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 4][]

先看一下十进制怎么转六进制

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 5][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 6][]

好了下来上两种方法的代码

#include<stdio.h>
    
    int main()
    {
        int n = 0, i = 0, count = 0;
        int arr[10] = { 0 };
        scanf("%d", &n);
        if (n < 6)
        {
            printf("%d\n", n);
        }
        else {
            while (n) {
                count++;
                arr[i++] = n % 6;
                n /= 6;
            }
            for (int j = count; j > 0; j--)
            {
                printf("%d", arr[j - 1]);
            }
        }
        return 0;
    }

#include<stdio.h>
    void print(int n)
    {
        if(n>5)
        {
            print(n/6);
        }
        printf("%d",n%6);
    }
    int main()
    {
        int n =0;
        scanf("%d",&n);
        print(n);
        return 0;
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16][] ![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16 1][]

## 2.\[NOIP2015\]金币(按规律计算金币个数) ##

链接 [\[NOIP2015\]金币\_牛客题霸\_牛客网 (nowcoder.com)][NOIP2015_ _nowcoder.com]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 7][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16 2][]

#include<stdio.h>
    
    int main()
    {
        int k=0,m=0,sum=0;
        scanf("%d",&k);
        for(int i=1;m<k;i++)
        {
            for(int j=0;j<i;j++)
            { 
               sum+=i;
                m++;
                if(m==k)
                {
                    break;
                }
            }
        }
        printf("%d",sum);
        return 0;
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_13_color_FFFFFF_t_70_g_se_x_16][] ![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_13_color_FFFFFF_t_70_g_se_x_16 1][]

## 3. 水仙花数(正常水仙花数的升级版) ##

链接 [水仙花数\_牛客题霸\_牛客网 (nowcoder.com)][_nowcoder.com 1]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 8][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_14_color_FFFFFF_t_70_g_se_x_16][]

#include<stdio.h>
    
    int main()
    {
        int m,n;
        while(~scanf("%d %d",&m,&n)){
          int count=0;
        for(int i=m;i<=n;i++)
        {   
            if(((i%10)*(i%10)*(i%10)+(i%100/10)*(i%100/10)*(i%100/10)+(i/100)*(i/100)*(i/100))==i)
            { 
                count++;
                printf("%d ",i);   
            }        
        }
        if(count==0){
                printf("no\n");
            }else{
            printf("\n");
        }
        }
        return 0;
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16 3][] ![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16 4][]

## 4.翻转直角三角形图案(正着输出三角形你会，但反着输出你会吗) ##

链接 [翻转直角三角形图案\_牛客题霸\_牛客网 (nowcoder.com)][_nowcoder.com 2]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 9][]

正着for循环是正着的三角形，那么现在要反着的三角形要怎么做，很简单，也反着for循环--；

#include<stdio.h>
    int main()
    {
     int n=0,d=0;
        while(~scanf("%d",&n))
        {
            int i,j;
            for(i=n;i>0;i--)
            {
                for(j=i;j>0;j--)
                {
                    printf("* ");
                }
                printf("\n");
            }
        }
        return 0;
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_16_color_FFFFFF_t_70_g_se_x_16][] ![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_16_color_FFFFFF_t_70_g_se_x_16 1][]

## 5.带空格直角三角形图案+金字塔三角形(for的嵌套使用) ##

链接 [带空格直角三角形图案\_牛客题霸\_牛客网 (nowcoder.com)][_nowcoder.com 3]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 10][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 11][]

#include<stdio.h>
    
    int main()
    {
        int n=0;
        while(~scanf("%d",&n))
        {
            for(int i=0;i<n;i++)
            {
                for(int j=0;j<=i;j++)
                {
                    printf("* ");
                }
                printf("\n");
            }
        }
        return 0;
    }

再看一个输出金字塔(和上个题方法基本一样)

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_6_color_FFFFFF_t_70_g_se_x_16][]![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 12][]

#include<stdio.h>
    int main()
    {
        int n=0;
        while(~scanf("%d",&n))
        {
          for(int i=0;i<n;i++)
          {
              int j=0;
              for(j=0;j<n-i-1;j++)
              {
                  printf(" ");
              }
              for(j=0;j<=i;j++)
              {
                  printf("* ");
              }
              printf("\n");
          }
               
           }
        return 0;
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_13_color_FFFFFF_t_70_g_se_x_16 2][] ![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_13_color_FFFFFF_t_70_g_se_x_16 3][]

## 6. 小乐乐走台阶(一次走一阶台阶或两节台阶，算多少方法的问题) ##

链接 [小乐乐走台阶\_牛客题霸\_牛客网 (nowcoder.com)][_nowcoder.com 4]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 13][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 14][]

#include<stdio.h>
    int method(int n)
    {
         return n<=2?n:method(n-1)+method(n-2);
    }
    int main()
    {
        int n=0;
        scanf("%d",&n);
    
        printf("%d\n",method(n));
        return 0;
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16 5][] ![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16 6][]

## 7.函数实现计算一个数的阶乘(用递归实现数字的阶乘) ##

链接 [函数实现计算一个数的阶乘\_牛客题霸\_牛客网 (nowcoder.com)][_nowcoder.com 5]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 15][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 16][]

#include<stdio.h>
    
    long long factorial(int n)
    {
        if(n==1)
        {
            return 1;
        }   
       return  n*factorial(n-1);
    }
    int main()
    {
        int n=0;
        scanf("%d",&n);
        factorial(n);
        printf("%lld",factorial(n));
        return 0;  
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16 7][] ![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16 8][]

## 8. 牛牛的digit(输出后面的数字) ##

链接 [牛牛的digit\_牛客题霸\_牛客网 (nowcoder.com)][digit_ _nowcoder.com]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_17_color_FFFFFF_t_70_g_se_x_16 9][]

这里有一个比较巧妙的方法，大家可以看一下

#include<stdio.h>
    
    void digit(int x,int i)
    {
        int n=1;
        while(i)
        {
            i--;
            n*=10;
        }
        printf("%d\n",x%n);
    }
    int main()
    {
        int x=0,i=0;
        scanf("%d %d",&x,&i);
        digit(x, i);
        return 0;
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_13_color_FFFFFF_t_70_g_se_x_16 4][] ![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_13_color_FFFFFF_t_70_g_se_x_16 5][]

## 9.序列中删除指定数字 ##

链接 [序列中删除指定数字\_牛客题霸\_牛客网 (nowcoder.com)][_nowcoder.com 6]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 17][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_10_color_FFFFFF_t_70_g_se_x_16][]

#include<stdio.h>
    
    int main()
    {
        int n=0,a=0,i=0;
        scanf("%d",&n);
        int arr[10]={0};
        for(i=0;i<n;i++)
        {
            scanf("%d ",&arr[i]);
        }
        scanf("%d",&a);
        for(i=0;i<n;i++)
        {
            if(arr[i]!=a)
            {
                printf("%d ",arr[i]);
            }
        }
        
        return 0;
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_16_color_FFFFFF_t_70_g_se_x_16 2][] ![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_16_color_FFFFFF_t_70_g_se_x_16 3][]

## 10. 有序序列合并 ##

链接 [有序序列合并\_牛客题霸\_牛客网 (nowcoder.com)][_nowcoder.com 7]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 18][]

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_19_color_FFFFFF_t_70_g_se_x_16][]

#include <stdio.h>
    int main()
    {
        int n = 0;
        int m = 0;
        int arr1[1000] = {0};
        int arr2[1000] = {0};
        //输入
        scanf("%d %d", &n, &m);
        int i = 0;
        for(i=0; i<n; i++)
        {
            scanf("%d", &arr1[i]);
        }
        for(i=0; i<m; i++)
        {
            scanf("%d", &arr2[i]);
        }
        //处理
        int j = 0;
        i = 0;
        while(i<n && j<m)
        {
            if(arr1[i] < arr2[j])
            {
                printf("%d ", arr1[i]);
                i++;
            }
            else
            {
                printf("%d ", arr2[j]);    
                j++;
            }
        }
        if(i == n)
        {
            for(; j<m; j++)
            {
                printf("%d ", arr2[j]);
            }
        }
        else
        {
            for(; i<n; i++)
            {
                printf("%d ", arr1[i]);
            }
        }
        return 0;
    }

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 19][]![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 20][]

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[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16]: https://img-blog.csdnimg.cn/f8f8fcad872845569dd16b10a197c446.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 1]: https://img-blog.csdnimg.cn/41abd608a093407a92a46ef0e3bb288a.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 2]: https://img-blog.csdnimg.cn/e3d1c99d1e0440e8858c915d3b80c11c.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 3]: https://img-blog.csdnimg.cn/c6d29738074f472da864a3152fe70c57.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA,size_20,color_FFFFFF,t_70,g_se,x_16
[_nowcoder.com]: https://www.nowcoder.com/practice/242eafef2a704c0ca130d563b7b3ee2d?tpId=290&tqId=632012&ru=/exam/oj&qru=/ta/beginner-programmers/question-ranking&sourceUrl=%2Fexam%2Foj%3Ftab%3D%25E8%25AF%25AD%25E6%25B3%2595%25E7%25AF%2587%26topicId%3D290
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA_size_20_color_FFFFFF_t_70_g_se_x_16 4]: https://img-blog.csdnimg.cn/7f7ffaa253f34d29a440cbbfde8c9e53.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5b-r5Yiw6ZSF6YeM5p2l5ZGA,size_20,color_FFFFFF,t_70,g_se,x_16
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