#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <stdlib.h>
#define MAXLEN 20
int arr1[MAXLEN];
int arr2[MAXLEN];
char str1[MAXLEN];
char str2[MAXLEN];
void convertBin(int intNum) {
static int bitSize = 32;
int modBin = intNum & 1;
int modNum = intNum >> 1;
if(bitSize --)
convertBin(modNum);
printf("%d",modBin);
}
int add(int a,int b) {
return b ? add(a^b,(a&b)<<1) : a;
}
int complementNum(int b) {
return add(~b,1);
}
int Min(int a, int b) {
return add(a,complementNum(b));
}
int Mul(int a,int b) {
int sum = 0;
int isNeg = ( a > 0) ^ ( b > 0);
unsigned int num = ( a > 0) ? a : complementNum(a);
unsigned int numAdd = ( b > 0 ) ? b : complementNum(b);
while(numAdd) {
if(numAdd & 1)
sum = add(num,sum);
numAdd = numAdd >> 1;
num = num << 1;
}
return isNeg ? complementNum(sum) : sum;
}
int Pow(int a, int b) {
int sum = 1, q = a;
while(b) {
if(b & 1)
sum = Mul(sum,q);
b >>= 1;
q = Mul(q,q);
}
return sum;
}
int division(int a, int b) {
int num = 0;
int isNeg = ( a > 0) ^ ( b > 0);
unsigned int num1 = a > 0 ? a : complementNum(a);
unsigned int num2 = b > 0 ? b : complementNum(b);
while(num1) {
if( num1 >= num2) {
num1 = Min(num1,num2);
num = add(1,num);
} else
break;
}
return isNeg ? complementNum(num) : num;
}
int Mod(int a,int b){
int isNeg = ( a > 0) ^ ( b > 0);
unsigned int num1 = a > 0 ? a : complementNum(a);
unsigned int num2 = b > 0 ? b : complementNum(b);
int modNum;
while(num1) {
modNum = num1;
if(num1 >= num2) {
num1 = Min(num1,num2);
} else {
break;
}
}
return isNeg ? complementNum(modNum) : modNum;
}
int main(void) {
//大數(shù)求和有待封裝
printf("Please Input Str1:\n");
scanf("%s",&str1);
printf("Please Input Str2:\n");
scanf("%s",&str2);
int strLen1 = strlen(str1);
int strLen2 = strlen(str2);
int i,k;
int j = 0, l = 0;
for(i = strLen1 - 1; i>=0;i--) {
arr1[j++] = str1[i] - '0';
}
for(k = strLen2 - 1; k>=0;k--) {
arr2[l++] = str2[k] - '0';
}
for(i=0;i<MAXLEN;i++) {
arr1[i] += arr2[i];
if(arr1[i] >= 10) {
arr1[i] -= 10;
arr1[i+1] ++;
}
}
_Bool skipFlag = false;
for(i=MAXLEN -1;i>=0;i--) {
if(skipFlag) {
printf("%d",arr1[i]);
} else if(arr1[i]) {
printf("%d",arr1[i]);
skipFlag = true;
}
}
if(!skipFlag)
printf("0");
return 0;
int intNum,addNum,minNum,num1,num2;
printf("Please Input an Integer:\n");
scanf("%d",&num1);
printf("Please Input another Integer:\n");
scanf("%d",&num2);
printf("%d / %d = %d\n",num1, num2, division(num1,num2));
printf("%d 求余 %d = %d\n",num1, num2, Mod(num1,num2));
//printf("%d ^ %d = %d\n",num1,num2,Pow(num1,num2));
//addNum = add(num1,num2);
//minNum = Min(num1,num2);
//printf("%d + %d = %d\n",num1, num2, addNum);
//printf("%d - %d = %d\n",num1, num2, minNum);
//scanf("%d",&intNum);
//printf("%d & 1 = %d %d & 0x01 = %d",num1,num1&1,num1,num1&0x01);
//printf("%d\n",intNum >>=1);
//convertBin(intNum);
//printf("\n");
return 0;
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