應用多文件數(shù)組處理大整數(shù)的加減乘除

1、#include "stdio.h"#include "stdlib.h"#include "string.h"#include "f2.h"#include "f3.h"#include "f4.h"#include "f5.h"#define max_len 100int an1max_len+10=0;int an2max_len+10=0;int resultmax_len+10=0;char str1max_len+10;char str2max

2、_len+10;void main()int flag=1;printf("=n");printf("=1:求和=n");printf("=2:求差=n");printf("=3:求積=n");printf("=4:求商=n");printf("=5:退出=n");printf("=n");while( flag != 0)printf("nPlease input your choice:"); scanf("%d"

3、;,&flag);switch(flag)default: printf("The num is not correct,please input again:n");break;case 1:add( an1 , an2 ); break;case 2:jian( an1 ,an2 );break;case 3:mul( an1 ,an2 );break;case 4: div( an1 ,an2 );break;case 5:exit(0);#include"f2.h"#include"stdio.h"#include&q

4、uot;stdlib.h"#include"string.h"#define max_len 100int add(int *an1 ,int *an2) char str1max_len+10; char str2max_len+10;scanf("%s",str1);scanf("%s",str2);int i,j; /存儲的字符串整數(shù)轉(zhuǎn)換到an1中去j=0;for(i=strlen(str1)-1;i>=0;i-) an1j+=str1i-'0'j=0; for(i=strlen(str2)-1;

5、i>=0;i-) an2j+=str2i-'0' for(i=0;i<max_len;i+) an1i+=an2i; /逐位相加 if(an1i>=10) /看是否進位 an1i-=10; an1i+1+; /進位 bool bStartOutput=false;/跳過多余的零 for(i=max_len;i>=0;i-) if (bStartOutput) printf("%d",an1i); /多余零都跳過則退出 else if(an1i) printf("The sum is %dn",an1i); bSta

6、rtOutput=true; for(j=0;j<max_len+10;j+)an1j=0;an2j=0; return 0; #include "f3.h"#include "stdio.h"#include "stdlib.h"#include "string.h"#define max_len 100int jian(int *an1,int*an2 ) char str1max_len+10; char str2max_len+10;int i,j;scanf("%s",str1)

7、;scanf("%s",str2);for(i=0;i<max_len+10;i+)an1i=0;an2i=0;int nlen1=strlen(str1);j=0;for(i=nlen1-1;i>=0;i-)an1j+=str1i-'0'int nlen2=strlen(str2);j=0;for(i=nlen2-1;i>=0;i-) an2j+=str2i-'0'for(i=0;i<max_len;i+)if(an1i<an2i)an1i+=10;an1i+1-;an1i-=an2i; bool bStart

8、Output=false;/跳過多余的零 for(i=max_len;i>=0;i-) if (bStartOutput) printf("%d",an1i); /多余零都跳過則輸出 else if(an1i) printf("The result is %dn",an1i); bStartOutput=true; for(i=0;i<max_len+10;i+)an1i=0;an2i=0; return 0;#include "f4.h"#include "stdio.h"#include "

9、;stdlib.h"#include "string.h"#define max_len 100int mul(int*an1,int*an2) int i,j;char str1max_len+10; char str2max_len+10; int resultmax_len+10=0;scanf("%s",str1);scanf("%s",str2);int nlen1=strlen(str1);j=0;for(i=nlen1-1;i>=0;i-)an1j+=str1i-'0'int nlen2=

10、strlen(str2);j=0;for(i=nlen2-1;i>=0;i-)an2j+=str2i-'0'for(i=0;i<nlen2;i+)for(j=0;j<nlen1;j+)resulti+j+=an2i*an1j; for(i=0;i<max_len;i+)if(resulti>=10)resulti+1+=resulti/10;resulti%=10; bool bStartOutput=false;/跳過多余的零 for(i=max_len;i>=0;i-) if (bStartOutput) printf("%d&

11、quot;,resulti); /多余零都跳過則退出 else if(resulti) printf("The result is %dn",resulti); bStartOutput=true; for(j=0;j<max_len+10;j+)an1j=0;an2j=0; return 0; donlen1=sub(an1,an2,nlen1,nlen2); result0+;while(nlen1>=0); bool bStartOutput=false;/跳過多余的零 for(i=max_len;i>=0;i-) if (bStartOutput)

12、 printf("%d",resulti); /多余零都跳過則退出 else if(resulti) printf("The result is %dn",resulti); bStartOutput=true; for(j=0;j<max_len+10;j+)an1j=0;an2j=0; return 0; #include "f5.h"#include "stdio.h"#include "stdlib.h"#include "string.h"#define ma

13、x_len 100int div(int*an1,int*an2) int sub(int*,int*,int nlen1,int nlen2); char str1max_len+10; char str2max_len+10; int resultmax_len+10=0; scanf("%s",str1); scanf("%s",str2); int i,j; int nlen1=strlen(str1); j=0; for(i=nlen1-1;i>=0;i-) an1j+=str1i-'0' int nlen2=strlen

14、(str2); j=0; for(i=nlen2-1;i>=0;i-) an2j+=str2i-'0' if(nlen1<nlen2) printf("0n"); nlen1=sub(an1,an2,nlen1,nlen2); if(nlen1<0) printf("0n"); else if(nlen1=0) printf("1n"); else donlen1=sub(an1,an2,nlen1,nlen2); result0+;while(nlen1>=0); bool bStartOut

15、put=false;/跳過多余的零 for(i=max_len;i>=0;i-) if (bStartOutput) printf("%d",resulti); /多余零都跳過則退出 else if(resulti) printf("The result is %dn",resulti); bStartOutput=true; for(j=0;j<max_len+10;j+)an1j=0;an2j=0; return 0; int sub(int*p1,int*p2,int nlen1,int nlen2) /返回值代表的是結(jié)果長度 /不夠減返回-1，剛好減完返回0 int i; if(nlen1<nlen2) return -1; bool blarger=