代码：
#include<cstdio>#include<cstring>#define Min(a,b) ((a)<(b)?(a):(b))using namespace std;char s1[10000],s2[10000],s3[10000];int main(){int t;scanf("%d",&t);int tt=0;while(t–){++tt;if(tt!=1)printf("\n");scanf("%s%s",s1,s2);int len1,len2,len3;len1=strlen(s1);len2=strlen(s2);len3=Min(len1,len2);int k=0;int i=len1-1;int j=len2-1;int pos=0;while(len3–){int temp=(s1[i–]-'0'+s2[j–]-'0'+k);s3[pos++]=(temp%10+'0');k=temp/10;}if(i==-1&&j==-1){if(k!=0)s3[pos++]=k+'0';}else if(i==-1&&j!=-1){while(j>=0){int temp=s2[j–]-'0'+k;s3[pos++]=(temp%10+'0');k=temp/10;}if(k!=0)s3[pos++]=k+'0';}else{while(i>=0){int temp=s1[i–]-'0'+k;s3[pos++]=(temp%10+'0');k=temp/10;}if(k!=0)s3[pos++]=k+'0';}printf("Case %d:\n",tt);printf("%s + %s = ",s1,s2);for(i=pos-1;i>=0;i–){printf("%c",s3[i]);}printf("\n");}return 0;}
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，梦想不分高低贵贱，只要你心中有梦，乐观充实地过好每一天。
