1 like 0 dislike
18.3k 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 | 18.3k 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:104.23.243.108
©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
| 15.6k 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
| 14.7k 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
| 17k 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
| 12.7k 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
| 3.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users