#include <stdio.h>
#include <string.h>
int main ()
{
    char a[21][1001],b[21][1001];
    int c[21][2001];
    int k[21]={0};
    int n,i,p,q,t,m;
    scanf ("%d",&n);
    for (i=1;i<=n;i++)
    {
        scanf ("%s %s",a[i],b[i]);
        p=strlen(a[i])-1;
        q=strlen(b[i])-1;
        while ((p>=0)&&(q>=0))
        {
            if(((a[i][p]-'0')+(b[i][q]-'0')+c[i][k[i]])>=10)
            {
                c[i][k[i]]=(a[i][p]-'0')+(b[i][q]-'0')+c[i][k[i]]-10;
                c[i][k[i]+1]++;
            }
            else
            c[i][k[i]]=a[i][p]-'0'+b[i][q]-'0'+c[i][k[i]];
            k[i]++;
            p--;
            q--;
        }

        if (p>=0)
        {
            for (t=p;t>=0;t--)
            {
                c[i][k[i]]=(a[i][t]-'0')+c[i][k[i]];
                k[i]++;
            }
        }
        else if (q>=0)
        {
            for (t=q;t>=0;t--)
            {
                c[i][k[i]]=(b[i][t]-'0')+c[i][k[i]];
                k[i]++;
            }
        }
        if (c[i][k[i]]!=0)
        k[i]++;
  }
        for (i=1;i<=n;i++)
        {
          printf ("#Case%d:\n",i);
          printf ("%s + %s =",a[i],b[i]);
          for (m=k[i]-1;m>=0;m--)
          printf("%d",c[i][m]);
          printf ("\n");
          printf ("\n");
        }
    return 0;

}

求大神帮忙

题目要求是要把所有要求的两个数都先输出吧，然后再统一输出所以对求和的结果，所以我弄了二维的，看到网上全部都是一维，那样可以通过吗？

那个地方我有写空格吧。它一直说格式错误，我要怎么修改。

😂😂怎么可以这样。
那那个a+b= 哪里错了？