91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
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/*
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* C Program to Perform Binary Addition of Strings and Print it
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*/
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#include <stdio.h>
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#include <string.h>
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/* global variables */
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char s1[10], s2[10], s3[10];
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int i, k;
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char carry = '0';
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/* function prototype */
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void binary_add(char *,char *);
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void main()
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{
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printf("enter string1\n");
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scanf(" %[^\n]s", s1);
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printf("enter string2\n");
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scanf(" %[^\n]s", s2);
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binary_add(s1, s2);
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printf("binary addition of number is\n");
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if (carry == '1')
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{
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s3[i] = '1';
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for (i = 1; i <= k + 1; i++)
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printf("%c", s3[i]);
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printf("\n");
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}
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else
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{
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for (i = 1; i <= k + 1; i++)
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printf("%c", s3[i]);
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printf("\n");
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}
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}
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/* function to add two binary numbers in a string */
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void binary_add(char *s1, char *s2)
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{
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char *p1, *p2;
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p1 = s1;
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p2 = s2;
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k = strlen(s1);
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for (; *p1 != '\0' && *p2 != '\0'; p1++, p2++);
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p1--;
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p2--;
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s3[k+1] = '\0';
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for (i = k + 1; i >= 1; i--, p1--, p2--)
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{
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if (*p1 == '0' && *p2 == '0'&& carry == '0')
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{
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s3[i] = (*p1 ^ *p2) ^ carry;
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carry = '0';
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}
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else if (*p1 == '0' && *p2 == '0' && carry == '1')
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{
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s3[i] = (*p1 ^ *p2)^ carry;
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carry = '0';
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}
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else if (*p1 == '0' && *p2 == '1' && carry == '0')
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{
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s3[i] = (*p1 ^ *p2)^ carry;
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carry = '0';
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}
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else if (*p1 == '0' && *p2 == '1' && carry == '1')
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{
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s3[i] = (*p1 ^ *p2)^ carry;
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carry = '1';
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}
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else if (*p1 == '1' && *p2 == '0' && carry == '0')
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{
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s3[i] = (*p1 ^ *p2)^ carry;
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carry = '0';
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}
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else if (*p1 == '1' && *p2 == '0' && carry == '1')
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{
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s3[i] = (*p1 ^ *p2)^ carry;
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carry = '1';
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}
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else if (*p1 == '1' && *p2 == '1' && carry == '0')
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{
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s3[i] = (*p1 ^ *p2)^ carry;
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carry = '1';
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}
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else
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{
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s3[i] = (*p1 ^ *p2)^ carry;
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carry = '1';
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}
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}
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}
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