1 like 0 dislike
17.9k 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 | 17.9k 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:104.23.243.109
©2016-2026

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
| 15.1k 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
| 14.3k 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
| 16.6k 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
| 12.5k 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
| 3.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users