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#include <stdio.h>
#include <string.h>
#define MAXLEN 1000
char a1[MAXLEN];
char a2[MAXLEN];
static int v1[MAXLEN];
static int v2[MAXLEN];
static int v3[MAXLEN];
int i,j,n,L,z;
void main(void) {
scanf("%d",&n);
for (j=0;j<n;j++) {
scanf("%s%s",a1,a2);
L=strlen(a1);
for (i=0;i<L;i++) v1[i]=a1[L-1-i]-'0';
L=strlen(a2);
for (i=0;i<L;i++) v2[i]=a2[L-1-i]-'0';
for (i=0;i<MAXLEN;i++) v3[i]=v1[i]+v2[i];
for (i=0;i<MAXLEN;i++) {
if (v3[i]>=10) {
v3[i+1]+=v3[i]/10;
v3[i]=v3[i]%10;
}
}
printf("Case %d:\n", j+1);
printf("%s + %s = ", a1, a2);
z=0;
for (i=MAXLEN-1;i>=0;i--) {
if (z==0) {
if (v3[i]!=0) {
printf("%d",v3[i]);
z=1;
}
} else {
printf("%d",v3[i]);
}
}
if (z==0) printf("0");
printf("\n");
}
}
//Sample Input
//3
//0 0
//1 2
//112233445566778899 998877665544332211
//
//Sample Output
//Case 1:
//0 + 0 = 0
//Case 2:
//1 + 2 = 3
//Case 3:
//112233445566778899 + 998877665544332211 = 1111111111111111110
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int main()
{
char a[100],b[100];
int c[100]={0},d[100]={0},sum[100]={0};
int i,j=0;
gets(a);
gets(b);
int len1=0,len2=0;
len1=strlen(a);
len2=strlen(b);
for(i=len1-1;i>=0;i--)
{
c[j++]=a[i]-'0';
}
j=0;
for(i=len2-1;i>=0;i--)
{
d[j++]=b[i]-'0';
}
if(len1>=len2)
for(i=0;i<len1;i++)
{
sum[i]=sum[i]+c[i]+d[i];
if(sum[i]>9)
{
if(i==len1-1)
len1++;
sum[i]=sum[i]-10;
sum[i+1]++;
}
}
else
for(i=0;i<len2;i++)
{
sum[i]=sum[i]+c[i]+d[i];
if(sum[i]>9)
{
if(i==len2-1)
len2++;
sum[i]=sum[i]-10;
sum[i+1]++;
}
}
if(len1>len2)
for(i=len1-1;i>=0;i--)
{
printf("%d",sum[i]);
}
else
for(i=len2-1;i>=0;i--)
{
printf("%d",sum[i]);
}
system("pause");
return 0;
}
int carry = 0;
if (len1 >= len2)
{
for (i = 0; i <= len1; i++)
{
if (i > len2)
d[i] = 0;
sum[i] = c[i] + d[i] + carry;
carry = sum[i] > 9;
if (carry)
sum[i] -= 10;
}
if (sum[len1] != 0)
len1++;
}
else
{
....
}
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