12-28 Exercise 1: Pascal triangle

0 like 0 dislike
12.3k views

By using two-dimensional array, write C program to display a table that represents a Pascal triangle of any size. In Pascal triangle, the first and the second rows are set to 1. Each element of the triangle (from the third row downward) is the sum of the element directly above it and the element to the left of the element directly above it. See the example Pascal triangle(size=5) below:

使用二維陣列，寫一個顯示巴斯卡三角形的程式。

Example input1:

5

Example output 1:

    1
   1 1
  1 2 1
 1 3 3 1
1 4 6 4 1

Example input 2:

0

Example output 2:

0

 

[Exercise] Coding (C) - asked in Chapter 8: Arrays by (5.2k points)
ID: 39984 - Available when: Unlimited - Due to: Unlimited
edited by | 12.3k views

102 Answers

0 like 0 dislike 
Hidden content!
#include<stdio.h>
int Pascal(int a[], int r, int c){}
int main()
{

    int n,i,j;

    scanf("%d",&n);

    if(n<=0)
    {
       printf("0");
    }
    int a[100][100]={{0},{1},{1,1}};

    for(i=3; i<n+1; i++)
    {
  *   ******    ***** **    ** *    ***  *  *        *     *  **   * ** ** * *** ** * ** * j<i; j++)
            {
**** *   *******  **** *   **   **  **    **** *  *     ** * * * ** *** * * * **** *** **** * * ** *    **  ** * * ** ***** ******  *  * 
 ** * *****     *   *   ***   ***    * *  *    *  *  **     *** ***** **** **  ***   * ****   *   ***   *** **    *  ** **  * *****  
   * ** *  *     * ** * ***  *  * *  **  *** * * * ** **   *  *   ***   *** **  *  * * ****** **** *     *  ******    ** * * *  ***    * 
   *  *** * * *  * *** *** **** ******* **  ******    **        ***** **  ** ** *** **   *** *   *  * ***** * ** ****** *     * *   *
**  **    * ** ****    *    **   ** **     * * *    **  ******    * ***    ***      ** *  * ** *** ** *  *** **   *   * * **    * **     *  *****    if (j<i-1)
*  ***   *    * * *  ** *****     **  ** ** **  *   ** ** ***  *  * * *** *  ******     **   ** *  ******   ***** ** ** **** *  *   *  ** * 
**        * ****** **   ***     ****  ***     **** ***   ** ****    * ***  ***        * *    * *  **  *  * ** *** **  *  *** *       **** * **   *  *** *    ** **
 ****** ** *****  * *** **   **   ** * *  *     ** **  *  * *** ****         * *  *** * ** ****    * *  * ** * * *  ****  ** *  **** 
*   * ** ****    **   ** *  ****  *    * * * **** **  ** ***  **  **** * *  ** * ** ** **     *  **  * *** *********  *** **  * ** *  ***
   ****    *  *  *  * *** * *   *  * ** **  *  *********  ****  * **    **   *   *** * *  **  ** *  *  *  *   ***  ******  ***  *****  ***  **  *   ******  *** 
* *  *******  ** ** *  **** *    *  ******* ***** **  *  ***** * ** ** *** * *   ***** *  * *  * *   **  * * * **    *   ***   *  * *  * *** *         * *  **   *   ***    *
  **  ** * *  ** *  * ** ** *   ** *  *******  * * * **  ** ***  *   ***   *  *** * ** **  *  *  *    * *** **** * * * * ** ***   ** ***  * ****   *   
*  *  **   * **   *  **   **  * *     *      *********** ****    ****  *   *  **  ****   * * **
     }
     for(i=1; i<n+1; i++)
     {
***** *  *    *  ** ***  ****** *    * * * * *** *** *   * * ****  *** ** * * *** ***** ** ***   j>0; j--)
 * *  * ***       * ***  * *  **  **  *   **      *** ***** *  ***** ** **     *** * ** *  
*** * * * **  *** **    *  ** **   ******* **    *  ****** * **    *           **  ** **  *  *** **  **  *  * *    **********      * *** ** * * **   *  * * ");
*     *** ** *  *** ****     ** ***  * ******  *** ** ** *** *     *   * * *   **  *
***   *** ***    ** ***  * * ***  *****   *** *  *   *  **     *  ** **    * * j=0; j<i; j++)
*   *   ** * *    **** * ** * ** *** ** * ** * *    *       *  *** *  *  **   ***  ***    ****   if(j==0)
**  *  *   *  *    *** ***  ***  * ** ** *  ***  ** **** * * * * *** ** *   ***    ***   * * * ** *  *** * ** * **  **   ***  ** * *   **  ** *** * ***       ** ***  * *  *
    *** ***   * * * *** *   *    ***  * ** *** * **  * ***      ** *  **  * ***  *** ** **** *    *    * ***
*** *****   *  ***   ****  *** **  ** *   ****   * *   *     *  *    *       * ***    **** * * *   *   * ** *** **** ** ** **  **  * %d",a[i][j]);
 ** ** *   *   ** *  *    *  * ** ** *   **    * ** *** **  *  *   *  * ** * *   ** *  *
 *  ******  * *   *  ** * ***       * * ***   **** **      * * *** ***  * *  *    **  *
  ***   * * ** **   *** ***  * ****** * * * ** *  *    * * ** **   *     * **  * *     *  *   *    *****       *      *
     }
   return 0;
}
answered by (-304 points)
edited by
0 0
prog.c:2:18: fatal error: conio.h: No such file or directory
 #include<conio.h>
                  ^
compilation terminated.
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 0
remove newline at the end, output is 0 when input is 0
commented by (12.1k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
int x;
* ***  * * *****     * *** *  *
int a[100][100],i,j,k;
if(x == 0)
{
 *  * *  *   *  ***** * ***  * **   *****  *   *
}
else{
for(i = 0 ; i < x ; i++)
{
*   ****  *** *   *   ** *    = 1 ; k <= x-i-1 ; k++)
*    ****   ** **    **    ** 
* **** **   ****  **      **** * * ** * **** *  * * *   *    *** ");
*** * * * *   ***** **  *  
  ** ***   **    *** *** ****  ** = 0 ; j <= i ; j++)
* ** **  *    *   * *    * * ***

******* *** *   ** *  **** **        *       *    *    == 0 || j == i)
* **  *  ** *** **   *  * ** **** * *** ** *****          *   *  **** * *********         **** = 1;
* *    *  *    * *** *    ***** *    **** ** * * *  *  *
***  * **   * ***   **   * **   * * *  *   *  ** * *  *  *  **  * **      *    *  = a[i-1][j-1] + a[i-1][j];
*     *     * ****  **  *   ****  ***** * ***  *  * *   == 0)
  * * *    * **** * **     * **  ***    * * * *** ***   *  * * * ** *   *** * **   **   *********  * **  * ** 
    ***      * * *   ***** ** ***  *  **** * ** * *  *  
*   * *** **   *   * * *  ***** *** **** * *  *  *** * ** * ** *  *** *   * * *     * *   ** %d",a[i][j]);
***     ** ** * **  *** *  *

**    *     *   *  *    * *   != x-1)
*  ***   * ***** *  ** *  *   *** **  * *     *  *** *  *   ** *
}}
** *    *******  **  ****    0;
}
answered by (5.2k points)
edited by
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
prog.c:2:1: error: expected identifier or '(' before numeric constant
 0
 ^
In file included from /usr/include/stdio.h:74:0,
                 from prog.c:4:
/usr/include/libio.h:302:3: error: unknown type name 'size_t'
   size_t __pad5;
   ^~~~~~
/usr/include/libio.h:305:67: error: 'size_t' undeclared here (not in a function)
   char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)];
                                                                   ^~~~~~
/usr/include/libio.h:333:62: error: expected declaration specifiers or '...' before 'size_t'
 typedef __ssize_t __io_read_fn (void *__cookie, char *__buf, size_t __nbytes);
                                                              ^~~~~~
/usr/include/libio.h:342:6: error: expected declaration specifiers or '...' before 'size_t'
      size_t __n);
      ^~~~~~
/usr/include/libio.h:464:19: error: expected '=', ',', ';', 'asm' or '__attribute__' before '_IO_sgetn'
 extern _IO_size_t _IO_sgetn (_IO_FILE *, void *, _IO_size_t);
                   ^~~~~~~~~
In file included from prog.c:4:0:
/usr/include/stdio.h:339:20: error: expected declaration specifiers or '...' before 'size_t'
       int __modes, size_t __n) __THROW;
                    ^~~~~~
/usr/include/stdio.h:388:44: error: expected declaration specifiers or '...' before 'size_t'
 extern int snprintf (char *__restrict __s, size_t __maxlen,
                                            ^~~~~~
/usr/include/stdio.h:392:45: error: expected declaration specifiers or '...' before 'size_t'
 extern int vsnprintf (char *__restrict __s, size_t __maxlen,
                                             ^~~~~~
/usr/include/stdio.h:711:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fread'
 extern size_t fread (void *__restrict __ptr, size_t __size,
               ^~~~~
/usr/include/stdio.h:717:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'fwrite'
 extern size_t fwrite (const void *__restrict __ptr, size_t __size,
               ^~~~~~
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.71.254.165
©2016-2025

Related questions

0 like 0 dislike
31 answers
12-28 Exercise 2: Prints a table showing how many time each digit appears
[Exercise] Coding (C) - asked Dec 28, 2017 in Chapter 8: Arrays by semicolon (5.2k points)
ID: 39985 - Available when: Unlimited - Due to: Unlimited | 5.6k views
0 like 0 dislike
55 answers
11-30 Exercise 3: Various filters on an array
[Exercise] Coding (C) - asked Nov 29, 2017 in Chapter 8: Arrays by semicolon (5.2k points)
ID: 34968 - Available when: 2017-11-30 18:00 - Due to: Unlimited | 7.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users