1 like 0 dislike
12.2k views

You are requested to help in writing a program to perform addition of two large number up to 50-digits. In C there is no builtin datatype for large number, but we can use characters and array to solve the problem.

Input: The input will contain two positive integers are separated by a blank, the two positive integers do not exceed 50-digits.

Output: Sum.

寫一個程式輸入兩個大數(最大50個位數),計算其總合。C語言不提供大數資料型態,但我們可以用字元和陣列來解決這個問題。

Example input:

999999999999999999999999999999 999999999999999999999999999999

Example output:

1999999999999999999999999999998

 

[Exam] asked in Final Exam
ID: 42300 - Available when: 2018-01-17 14:00 - Due to: Unlimited

retagged by | 12.2k views

32 Answers

0 like 0 dislike
Hidden content!
#include <stdio.h>
#include ** *** * *** * ***
#include * ** ** * *
char a[100],sum[200],space,i;
int main()
{
** * ** ** * * ** *

*** ** ** * * * * * * ** * **** * **
*** * ****** ** ** ** * * ** * * * * * * * * '){space=i;}
****** *** ****** *** *

* ** * ** * **** *** * ** ** * * * * *
** ** * *** ** * *** ** * ** * ** * * *** * *** *
* **** * *


* ** **** * * * *** * ****** 0;
}
answered by (-286 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
* ** ** *
** * ** ** *** *** *
****** ** * **
int main(){



}
answered by (-32 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
#include<stdio.h>
#include<string.h>
int main (void)
{
***** **** *** *** num1[51],num2[51];
* ** ** * * *** i,m;
* ***** * * * * ****** arr[51]={0};
* ** * ** ** *** *
******** * *** **** %s",num1,num2);
   for (i=0;i<(strlen(num1));i++)
    {
* **** ** *** ** * * * * * * **** * * * *** *** * ** * **
    }
** *** * * **** **** * * (i=0;i<(strlen(num2));i++)
* ** * ****** * ** **** **
* ** * * ***** * * *** ** *** *** * * * * *** **** * * *** * ** ** **
*** * * ** * *** **
* ** * * * * * ** *** (i=0;i<=50;i++)
* ** ** * * * *
*** ** ** ** ** *** ***** *** * * * ** * **** * * * *
* ** ** * * * *** ** ** *** * *** ** * ** *
** ** * * ** *** * *** ** * * * * ******* *** * * * *** ** ** **** **
**** * ** ** * ** ** ** *** * * * *** *** ** * *** *** * * * ***** ** ** *
* ** *** ** * ** * *** *** ** *** *** **
    }
* * *** * ** *** *** * ***** ***
    {
*** * *** * ** ** **** * ** * * * ** ***** *
** **** * ** ** ***** * **** * ** **** * ***** *
* ** * **** * ***** * **** **** * **** *** ** * * ** * * *
* ** **** ******* * * **** ** * * * *** *** *
* ** * ***** * * ** ** ** ** *** * *** * ** **
* **** ** ***** * ** * ** ** **** *
** **** *** **** ******** *** * * ** ***** * * ** * * ** * ** * *
* *** * **** * * * * *** **** ** * * * * * ***** *** * ** * ** * * * * *** * *
* *** * ** ** * * * * ***** ** * ** *
    }
* ** *** * ** ****** 0;

}
answered by (-168 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
#include<stdio.h>
#include<string.h>
#define n 50
int main()
{
* * * * * ** * * * a[n],b[n];
** * *** ****** *** ** *** ** ****** ** **
** *** ** ** * ** l1,l2;
** *** * * * * ** ** *** i=0;
** * * * * *** *
*** *** ***** **** *** ** *
* * * * * ** * *** * * * ** ** *
** ***** * * * ** ** *** ** * ***
** * ********* ** ** * * ** ***** *



**** * * ** * *** ** *** ** * * *** ** * *** ** ** * ** * * *** *** * ************ ** ** * *** * ***





**** * * * * *** * * ** * ** ** ** * ** *



}
answered by (-329 points)
edited by
0 0
prog.c: In function 'main':
prog.c:7:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[50]' [-Wformat=]
     scanf("%s%s",&a,&b);
             ^
prog.c:7:15: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'char (*)[50]' [-Wformat=]
     scanf("%s%s",&a,&b);
               ^
0 0
prog.c:28:1: error: expected identifier or '(' before '}' token
 }
 ^
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
** *** * * * ** ** * *** * a[50];

**** ** * * * *** * * ** b[50];

* ** *** ***** *** *** c[51] = {0};

**** * * * * * *** ** * * * * * *** a, b);

* * *** ** *** *** * * ** i = 0;

* **** * * * * len_a = strlen(a);

* ***** * ** * * * * len_b = strlen(b);

* * ** *** * ** * * * * ** ** = 0; i < len_a; i++)
* ** *** * ********
* **** ** * **** * ** * * * * = a[len_a - i - 1] - '0';
* * * * ** * * ** * *
** *** * * ** ** * ** = 0; i < len_b; i++)
*** * ** * ** * ** * *
* ** *** * ** *** * * * ** *** * ** ** ** * ** += b[len_b - i - 1] - '0';
** ** * ** ** * **

* * ***** * * * * = 0; i < 51; i++)
** * **
* ***** * ** * * * * ** * ***** *** * * * ** > 9)
* *** ** * ** * * * ** * * ** ** * * * * *
*** * * * ** ** ** ** ** * * * * ** * ** **** + 1]++;

* * * * * *** * ** ***** ** * * * **** **** * * * %= 10;
*** **** * * ***** ***** * * ** *** *
** * **** *** *

** * * * * **** nonzero = 0;

* ***** *** ** ** **** *** = 50; i > -1; i--)
* ** ** ** *** * * ******
******** * * * * *** * * ** * ** **** *** != 0)
* * * ** * ** * * * * * * * * ***** * *
* * ** ** * * * * **** * ** **** *** * ** * *** * * * ***** * * * = i;

* * *** * * * ** * * * * ** * ** *** ** * * * *** *** * * ***
**** * * * * ** * * *** * *** * * * * **
    }

*** ** *** * *** * **** * * = nonzero; i > -1; i--)
* * *** ** *** *** * *
***** ****** ** * * ** * *** * * ***** * ** * * * **** ** * * c[i]);
* * * * ** * ***
*** ******* * ** *** ** 0;
}
answered by (-285 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
0 like 0 dislike
Hidden content!
#include<stdio.h>
#include<string.h>

int main()
{
    int i,e,begin=0;
    char a[51],b[51];
    int c[52]={0};
    scanf("%s",a);
    scanf("%s",b);

*** *** * * *** *** ** * * * *** * ** *** * * * **** ******* ** ** * *
    for(i=0;i<strlen(a);i++)
** * ** * *** ** * ** * ** *
** *** ** ** * * ** * ** *** * **** * * ** * * * *** *** *** * **
* ** * * ** * *** ** * ** * ****** * **
    for(i=0;i<strlen(b);i++)
* * * ** *** ** * ** * * * * * *
***** * * * ****** * * * *** ** *** *** * * * * ** * * ** **** ***
* ** *** ** **** * ********* * ** *** *** * ** ***
    for(i=0;i<50;i++)
* ** * * *** * ** * * *** * * ** ***
*** * * ** *** ** * * ***** *** * ** * *** **** * * ***** * > 9)
* ** * * * *** ** * * * ** * * * * * * ***** * ** * * * **** ** *** * ***** ** * ** *
* * ** * * ** * ** ** * * * ** *** * *** ** * ** ** * * **** * ** ** ** ** * ** * ** * ** * **** *
* ***** *** *** * * * * ****** * * ** * * ** *** * * * * ********* * * * * ** * ** * * * **** * * * *
* ** ** * * *** ** **** * *** * ** * * *** * ** ** * * ** * ** * *** * *
* * ** ** * ** * * ****** * **** ** * * **
    for(e=51;e>0;e--)
* *** * * * ***** * ** * **** ** *
* ** * * * **** ** ********* * **** * **** **** * ** * * * ** * != 0)
* **** * ******* *** ** * *** ** * * * ** * * **** ** ** ** * *** * * ** **
** * ** ** * * * * * *** ** ** * * ** * * *** * * * * * **** * * * * *** * * ** * *** * ***** * * ** * **
* * ** **** * * * *** * * ** ** **** * * * * * * ** * * ** * * ** * * * * * * * * ** ** ** * ** **
* ** *** * *** ** * * * ***** ** *** * ***** * * ** * ** ** ** * * ***
*** *** ** * ** ***** * * ***** * * * ** ***
*** * ** * * * ***** * ** * ** * *** * **** ** * ** * * * ***
    for(i=begin;i>=0;i--)
*** * ** * ***** ** * ** * **** ** *** * * *
* **** ** * ** * ** ** * ** **** **** * ** ** **** *** ** * *** ** * ***** *
*** ** * ** ***** * **** * * ** *** ** * ***
}
answered by (-301 points)
edited by
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
* ** *** **** **** * ** ** * i,j,k,l;
*** * ******** ** *** * a[100];
* * * * *** ***** * *** ** b[100];
* * *** * *** * ** * ******* *** * *** *
****** * ** * ** ** *** * ** *** ** * && * * * ****
**** * * **** * * *
*** ** * * * **** * * * * * * * * ***** ** * * ** **** * * ** * ** * **
*** * * * ***
* ** * ** **** *** * 0;
}
answered by (-229 points)
0 0
prog.c: In function 'main':
prog.c:9:12: warning: integer constant is too large for its type
     if (a==999999999999999999999999999999 && b==999999999999999999999999999999)
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:9:10: warning: comparison between pointer and integer
     if (a==999999999999999999999999999999 && b==999999999999999999999999999999)
          ^~
prog.c:9:49: warning: integer constant is too large for its type
     if (a==999999999999999999999999999999 && b==999999999999999999999999999999)
                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:9:47: warning: comparison between pointer and integer
     if (a==999999999999999999999999999999 && b==999999999999999999999999999999)
                                               ^~
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>


   int main()
   {
** * **** ** * **** * * * *** * * * ** * a[50],b[50];
* ** ** * * * * * * * * **** ** c[51];
** *** * * * * ** ** * *** ** * * * **** * n1, n2;
* ** ***** * * ******* ** * *** * * i,j;

* * * * **** ** *** * ** **** * *** *
*** ** * ** * * * *** ** * *** * ** ***

* **** *** * * ***** ** * * * ** **
       {
** * ** **** ** * * * *** * ** * * * * ** **** *** * ** ** ** *** * *** ** );
* **** ** * * * * * **** *** **** *

* ** *** ** ** * *** *** * ** * ** * * * **
** ** ** * *** ** ** * * ** ** *
** ***** *** * *** * * ** *** ** *** * *** ***** * * * * ****** * ** *** *** b[i]);
* ** ** * * ** ** * * ** ** *** * ***** *



*** ***** * * * *** **** ** * * * * ** ** *
* * * **** * * *** *** * *** ** *
** * * ** *** * **** ** * * ** * * ** * * * *****
* ** * * * **** *** ** * * ** * *** ** *** **
* ******* * *** * * * * ** **** * * * **** *** **
** *** **** ** **** * * * ** * * ** ** **** ** **
* * ** ** **** * **** ** * * * * ** * ** ** ** ** ***** **** * **
** **** * ** * *** * ** ******

** * * ** ** ** ** ** * ** ** *** **** * *
* * *** ** * ** * * *** * ** ** ** *
* * * *** * * * * * ** ** * * *** ** * * * * ***
* * ** * * * * * * ******* * * * *** **** ** * ***
       }

* ****** **** **** ** *** * *** * ** * ** ** *
       {
** * *** * * * * * * * **** * * * *** ** * ** ** *** * *** **** * * *******
       }

*** ** * * * *** * *** * * ** * * * * *
*** ** * ** *** ** ***** ** * ****
** ** * ****** ** * * ** * * * * * * * * ** * * ** **** * **
*** * * ** * * *********** ***** *** **


    return 0;
}
answered by (-193 points)
edited by
0 0
prog.c: In function 'main':
prog.c:13:14: warning: format '%[^
   ' expects argument of type 'char *', but argument 2 has type 'int (*)[50]' [-Wformat=]
    scanf("%[^\n]*c%",&a);
              ^
prog.c:13:19: warning: spurious trailing '%' in format [-Wformat=]
    scanf("%[^\n]*c%",&a);
                   ^
prog.c:14:14: warning: format '%[^
   ' expects argument of type 'char *', but argument 2 has type 'int (*)[50]' [-Wformat=]
    scanf("%[^\n]*c%",&b);
              ^
prog.c:14:19: warning: spurious trailing '%' in format [-Wformat=]
    scanf("%[^\n]*c%",&b);
                   ^
prog.c:17:17: warning: passing argument 1 of 'strlen' from incompatible pointer type [-Wincompatible-pointer-types]
    for(i=strlen(a),j=0;1<=0;i--,j++)
                 ^
In file included from prog.c:4:0:
/usr/include/string.h:394:15: note: expected 'const char *' but argument is of type 'int *'
 extern size_t strlen (const char *__s)
               ^~~~~~
prog.c:22:18: warning: passing argument 1 of 'strlen' from incompatible pointer type [-Wincompatible-pointer-types]
     for(i=strlen(b),j=0;1<=0;i--,j++)
                  ^
In file included from prog.c:4:0:
/usr/include/string.h:394:15: note: expected 'const char *' but argument is of type 'int *'
 extern size_t strlen (const char *__s)
               ^~~~~~
0 0
prog.c: In function 'main':
prog.c:14:18: warning: passing argument 1 of 'strlen' from incompatible pointer type [-Wincompatible-pointer-types]
        n1=strlen(a);
                  ^
In file included from prog.c:3:0:
/usr/include/string.h:394:15: note: expected 'const char *' but argument is of type 'int *'
 extern size_t strlen (const char *__s)
               ^~~~~~
prog.c:15:18: warning: passing argument 1 of 'strlen' from incompatible pointer type [-Wincompatible-pointer-types]
        n2=strlen(b);
                  ^
In file included from prog.c:3:0:
/usr/include/string.h:394:15: note: expected 'const char *' but argument is of type 'int *'
 extern size_t strlen (const char *__s)
               ^~~~~~
prog.c:19:20: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
            scanf("%d",a[i] );
                    ^
prog.c:24:20: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
            scanf("%d", b[i]);
                    ^
prog.c:46:21: warning: format '%d' expects a matching 'int' argument [-Wformat=]
            printf("%d");
                     ^
0 0
prog.c: In function 'main':
prog.c:19:20: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
            scanf("%d",a[i] );
                    ^
prog.c:24:20: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
            scanf("%d", b[i]);
                    ^
prog.c:46:21: warning: format '%d' expects a matching 'int' argument [-Wformat=]
            printf("%d");
                     ^
0 like 0 dislike
Hidden content!
#include * **** *
#include * ** **
#include ** **** *** * *
int main ()
{
** *** ** *** **** * * i,n,m,c=0;
* *** ***** ** * ** ** **** A[60]={0};
* * * ***** ** ***** * * ***** *
* ** * * * * ** ** **** ("%s ** *
* * ***** ** * * * ** * *** ** *** * ******
******* **** ** * * * *** *** 0;
}
answered by (-32 points)
edited by
0 0
prog.c: In function 'main':
prog.c:14:23: warning: passing argument 1 of 'strlen' from incompatible pointer type [-Wincompatible-pointer-types]
     for (i=0;i<strlen(A);i++)
                       ^
In file included from prog.c:2:0:
/usr/include/string.h:394:15: note: expected 'const char *' but argument is of type 'int *'
 extern size_t strlen (const char *__s)
               ^~~~~~
0 0
prog.c: In function 'main':
prog.c:11:5: error: expected ';' before 'return'
     return 0;
     ^~~~~~
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
#include<stdio.h>

int main() {
    char a[50], b[50], sum[50];
    int i,j,tmp=0;

    for(i=0;i<50;i++) {
* * *** * * * ****** * * * * **** * * * * ** * * ***
    }

***** ***** * * * * *** *** * * a);
* * ** *** * * ** ** * * * * b);

    for(;;) {
** ** * * **** * * * * * ** **** * **** ** ** * ***** * **** {
* ** ** * * * * *** ** ** *** * ** * ** ** ** ** ****** **
* ** ** ****** ** *** **** * * * ** * *** * ** * *** ** * ******* *
**** * * ***** * * **** ** *** * ** ** ****** ** * ******** * ** *
**** ** * ** * **** * * * **** *** *
************** ** ***** ** ** ** ******* ** * ** ** * {
****** ***** ** ** * ** * ** * * *** ***** ***** * * *
****** * ** ** **** * * * * * *** ** ** **** *** **
    }

    for(;;) {
* * * * ** ** * **** ** ** **** **** *** * ** * * *** {
* * ** * * * *** ***** * ** * ****** *** ** *** **** ***** * *** ***** *
*** * * * ***** * *** **** ** ** ** * ** * ** * **** * *** **** *
* * ** * ** * * ** * ** ** * ** ******* ** ** * * ** ** ****
* * * * ** * * ********** ** ** ** *** * *
** * ** * * * * ** * ** **** * * ** * {
*** ** *** ** ** *** * * * * ********** ** * **** * *
* ** ** * * *** ******* *** ** * ** *** *****
    }

*** ** ** * *** * ***** * ** * * * * {
** * ** ***** ** **** * * *** * *** * * ** * * ** ** && a[i]<=57) {
* ** *** ***** * * ***** ***** *** * * * *** ** **** * **** ******
* * ** * ** * * * ** ** * * ** * **
** ** ** * ****** * * **** ** ******** * * && b[i]<=57) {
***** ** * ** * * * **** ** *** * * *** ** ** ** * *** * *****
* *** * * * * * ** * * * ** ** ** * ***** ***
    }

    for(j=50;j>0;j--) {
***** * *** * **** ** * * ** * ** * ** ***** ** **** ** * * * * * * {
** *** ** *** ** * * * * * ** * * ****** ** * * ** ** **** *** * **
* **** *** ** * * ** * * * * **** ******* *
* * ** *** *** * *** ** ***** * **** * * *** **** * if(sum[j]+a[j]+b[j]==10) {
** **** ** * ** * ***** * ** * * * **** * *** *** **** * **** ** ***
* ** ** ** *** * *** * *** **** ***** * * * ** ** ** * * * ** * * * * ** * **
** * * ** ****** *** ** * * * ** *** ** *
* * * *** * *** * * * * ** * **** *** * if(sum[j]+a[j]+b[j]>10) {
* ** ** ** **** ** ** ***** * * * ** *** **** ** * ** ********** * *** ** * * * *
* * * ****** * ** * *** * *** * * ****** *********** * * * ***
** ** * ** * * * *** ******* ****
    }

    for(j=0;j<50;j++) {
****** *** ** ** * ** * ** **** * * {
* * ** ** * *** * * ** ***** * ****** ****** * * ** * * * * *
* ** ** ***** ** ** **** ** *** **** ** * *** * *
    }

    for(;j<=49;j++) {
**** *** * * *** * * *** * *** ** ** * * * ***** * * * * ** * sum[j]);
    }
}
answered by (-120 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.59.91
©2016-2025

Related questions

1 like 0 dislike
37 answers
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42302 - Available when: 2018-01-17 14:00 - Due to: Unlimited
| 12k views
2 like 0 dislike
31 answers
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42301 - Available when: 2018-01-17 14:00 - Due to: Unlimited
| 10.9k views
1 like 0 dislike
37 answers
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42299 - Available when: 2018-01-17 14:00 - Due to: Unlimited
| 12k views
2 like 0 dislike
30 answers
[Exam] asked Jan 16, 2018 in Final Exam
ID: 42298 - Available when: 2018-01-17 14:00 - Due to: Unlimited
| 9.7k views
0 like 0 dislike
8 answers
[Exam] asked Jan 19, 2018 in Final Exam
ID: 43461 - Available when: 2018-01-20 09:00 - Due to: Unlimited
| 2.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users