1 #include<stdio.h>
2 #include<string.h>
3
4 #define N 100
5
6 int main()
7 {
8
9 char a[N], b[N];
10 int a_real[N], b_real[N], c[N + 1];
11
12 int i, j, k = 0;
13 int a_len, b_len;
14 int max, min;
15 int carry_bit = 0, total_bit = 0;
16
17 memset(c, 0, sizeof(c));
18 memset(a_real, 0, sizeof(a_real));
19 memset(b_real, 0, sizeof(b_real));
20
21 scanf("%s", &a);
22 scanf("%s", &b);
23
24 a_len = strlen(a);
25 b_len = strlen(b);
26
27 i = a_len - 1;
28 j = b_len - 1;
29
30 while(i != -1)
31 {
32 a_real[k++] = a[i--] - '0';
33 }
34
35
36 k = 0;
37 while(j != -1)
38 {
39 b_real[k++] = b[j--] - '0';
40 }
41
42 max = a_len > b_len ? a_len : b_len;
43 min = a_len > b_len ? b_len : a_len;
44
45 for(i = 0; i < max; i++)
46 {
47 c[i] = a_real[i] + b_real[i] + carry_bit;
48
49 if(c[i] > 9)
50 {
51 c[i] -= 10;
52 carry_bit = 1;
53 }
54 else
55 {
56 carry_bit = 0;
57 }
58
59 }
60
61 if(carry_bit)
62 {
63 c[max] = 1;
64 total_bit = max + 1;
65 }
66 else
67 {
68 total_bit = max;
69 }
70
71 for(i = total_bit - 1; i >= 0; i--)
72 {
73 printf("c[%d]:%d\n", i, c[i]);
74 }
75
76 }
