0 like 0 dislike
11.7k 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

 

[Exercise] Coding (C) - asked in Chapter 13: Strings by (5.2k points)
ID: 40714 - Available when: 2018-01-04 18:00 - Due to: Unlimited

edited by | 11.7k views

44 Answers

0 like 0 dislike
Hidden content!
#include * ** * *

#define LEN 51

int * * **** n[])
{
* ***** * tmp[LEN]; * * * i,m;
** * *** ** *** * **** * ** * *  { * * **  }
*** * **** * *** ****** ** * * * * ** *  { * -1;  }
** *** * ** *** *
* * * *** * **** *  { * *** * * ** *  }
}

void * * * *** n[])
{
** * * * * ** i,p,f=0;
** * * ** ** ** * * *
** * ** * * ** ** **** *  { ** * * * * *  }  }
* ** **** ** *
**** * ** ** ** ** *** *** * * ** ***** * ** * ***** ** ** * *
* * **** **** *  { * * * * ** **
}

void *** * * a[], char b[], char c[] )
{
* * *** i,tmp=0;
** * * * ***** **** *
* *** *
* * * ** *** * ** * * * *** *****
* * * * ** *** *** * * ** * ***** ********* ** * ** ********  }
* * ** * ** ** **** * ** ** tmp=0; ** *
***** ** * ******
}

int main(){
* **** ** ** * * ** *** ** **** ** ***
* * ** ** * * *****
*** * ******* * *** * * * * ****
* * * *** * * ** ***** *** * ** ** *
** ** **** * ** ** **** *
** **** *** * * ** ** * 0;
}
answered by (-116 points)
0 0
prog.c: In function 'InputBigNum':
prog.c:10:5: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
   m=strlen(tmp);
     ^~~~~~
prog.c:10:5: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:10:5: note: include '<string.h>' or provide a declaration of 'strlen'
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <string.h>
#define LEN 300

int  Input(char n[]){
** **** **** **** * * ** ** **** * * ** * * ** ** * s[LEN];

** *** * * * ** **** **** * ** ** * ** **** ** * i, l;

*** ******** * * ** **** * *** * *** * *** * **** *** ***** ** i<LEN; i++){
* * * ** ** * ** ** ** ** ** * ** * ** **** * *** *** **** ** * * *** * **
** * * * ** * ****** * * **** ** * ***** * *** * ** * *
* *** * ** * ** **** ** * * * * * ** * ** **** * * ** * * ***** * s)<1){
* * * * * ** * * *** * * * * ** ** *** * * **** ** ** ** ***** * -1;
* * ** * ** * ** ** ** * ***** * * * * ** * *** * * ***
* ** * * * * ** **** * *** *** * * ** * ** **
** * ** ** ***** * ***** * * * * * ** ** * **** * * * i<l; i++){
* **** ** *** ** ** * * *** ** *** * * * ** ** * * **** * ** ** * ** ** * * * *
*** * * ****** ** *** ** ***** ** ** *** * ** ** * ***
******* * ** ** ****** ***** * * *** ** *** ** * * * ** ** * 0;

}

void Print(char n[]){
*** ** *** ** * ** * * *** ****** ** * ** * * ** * * * i;
** ** ** * **** ** * * * *** * ** * * * *** ***** ** * * ** * *** ** * i>0; i--){
* *** * ** * **** ** ****** ***** * * ** ** ***** ***** * * * * *** ** * * * * break;
***** ** *** * * ** ******** *** ****** **** * * ****** * * ******* *
*** ****** * * *** * * * * ** *** **** ** * *** * * ** i>=0; i--){
* * * * * * * *** ****** * * * ** ******** ** * * * * ** * *** * * * ****** n[i]);
** ** ***** ** * ****** * ***** * * * **** * * *** * * * * * * *
** * * * ** ** ****** *** *** *** * * ** * *** ** * * * ** * * * ** * **** * ** *
}

void Add(char a[], char b[], char c[]){
* ***** *** ** ** * * * *** * * ** * *** * i;
**** * ** **** ****** * * * * *** ** * * ** ** * ** * i<LEN; i++){
* * **** *** * ** ** * * * * ** * * ** ** * * ******* * * ***
         }
* ** **** ** ** ** * * ** * * ** * ******** ** *** * i<LEN-1; i++) {
** *** * *** * *** * * **** ** **** * *** **** **** *** * ***** * * * **** {
* ***** * * * ** * * * * ** *** * ** ** * ** *** ** ** ** ** * * * * *** * * ** * * * *
* * **** ** * ** * *** * ** * ***** **** *** ** ** * * *** * ***** *** * * * *
* **** * ** * ** * *** * * * ** * ** ** * * ** ** * * * * **** **** *****
        }
}

void main(){
     char a[LEN], b[LEN], c[LEN];
     Input(a);
     Input(b);
     Add(a, b, c);
     Print(c);
}
answered by (-32 points)
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: Correct output
0 like 0 dislike
Hidden content!
* **** * * **
int main()
{
**** *** * * * **** a,b;
* ** *** ***** * ** ***** ***** ** * ** * *** ****
* ******* * ** * ***** **** * ***** * ** * * * * * *





}
answered by (-329 points)
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Wrong output
0 0
nice try hahaha
0 0
This is the best one!!!! hahahahaha
0 like 0 dislike
Hidden content!
* **** ** *
* *** * ** ** *****

int main()
{
char A[50],B[50];
int C[51]={0};
int i,j;
scanf("%s %s",A,B);
** * ** * *** ** j++)
{
** **** ** ** * * * ** *** * **
}
* * ** *** * ** ***** * j++)
{
* * * **** * *** ** * ****
}
for(i=0;i<51;i++)
{
* ** *** ***** * * * * * *
** ** ** ******* *** * *
* ** ** ** ** ** * **** **** *** ** * * * * **
*** ** * ** * *** *** * ** * * **** * ** * ******
* ** * * * * ** * ** **
}
for(i=50;i>=0;i--)
{
** **** * * * * * ** * ** *
* ** * * *** *
* * ********* ** * *** * * ***** * * * * ** * * ***** **** * *
* * *** * ****** ** **
* ** * * ** ** ** * **** * ****** ** * *
**** ******* * *
*** * * * ***** * * * *
}
}
}
answered by (5.2k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct 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 1 dislike
85 answers
[Exercise] Coding (C) - asked Oct 26, 2017 in Chapter 6: Loops by semicolon (5.2k points)
ID: 28914 - Available when: 2017-10-26 18:00 - Due to: Unlimited
| 20.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users