1 like 0 dislike
17.5k 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 | 17.5k 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:162.159.115.9
©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
| 15k 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
| 14.2k 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
| 16.4k 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
| 12.2k 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