1 like 0 dislike
16.5k 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 | 16.5k 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:104.23.243.164
©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
| 14k 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
| 13.2k 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
| 15.2k 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
| 11.4k 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
| 3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users