题意:大数加法;
坑点:输入有前导0,输出也有前导0.。。;
#include<stdio.h>
#include<iostream>
#include<algorithm>
#include<string.h>
#include<stdlib.h>
#include<time.h>
#include<string>
#include<math.h>
#include<map>
#include<queue>
#include<stack>
const int inf=0x3f3f3f3f;
typedef long long ll;
using namespace std;
int x[10005],y[10005],z[10005];
char a[10005],b[10005];
int main()
{
while(~scanf("%s%s",a,b))
{
memset(z,0,sizeof(z));
memset(x,0,sizeof(x));
memset(y,0,sizeof(y));
int aa=strlen(a);
int bb=strlen(b);
int p=0;
for(int i=aa-1; i>=0; i--)x[p++]=a[i]-'0';
p=0;
for(int i=bb-1; i>=0; i--)y[p++]=b[i]-'0';
int d=0;
p=max(aa,bb);
for(int i=0;i<=p; i++)
{
int s=x[i]+y[i]+d;
z[i]=s%10;
d=s/10;
}
if(z[p])printf("%d",z[p]);
for(int i=p-1; i>=0; i--)
printf("%d",z[i]);
printf("\n");
}
}