C++-HDU1000,1001,1002-格式是真的坑

 #include <cstdio>
 int main(){
     for(int a,b;~scanf("%d%d",&a,&b);printf("%d\n",a+b));
     return ;
 }

hdu1000

 #include <cstdio>
 int main(){
     for(int n;scanf("%d",&n)!=EOF;printf("%d\n\n",(n%==?((n/)*(+n)):((+n)/)*n)));
     return ;
 }

hdu1001

 #include <cmath>
 #include <cstdio>
 #include <cstring>
 #include <algorithm>
 using namespace std;
 int main() {
     char s1[],s2[],s3[];
     int num1[],num2[],num3[],t,T;
     for(scanf("%d",&T),t=; t<=T; t++) {
         scanf("%s%s",s1,s2);
         memset(num1,,sizeof(num1));
         memset(num2,,sizeof(num2));
         memset(num3,,sizeof(num3));
         memset(s3,,sizeof(s3));
         int len1=strlen(s1),len2=strlen(s2),len3=max(len1,len2);
         for(int i=len1-,cnt=;i>=;num1[cnt++]=s1[i]-'',i--);
         for(int i=len2-,cnt=;i>=;num2[cnt++]=s2[i]-'',i--);
         for(int i=;i<len3;i++)num3[i]=num1[i]+num2[i];
         for(int i=;i<len3;i++)if(num3[i]>)num3[i+]++,num3[i]%=;
         if(num3[len3])len3++;
         for(int i=len3-,cnt=; i>=; i--) s3[cnt++]=num3[i]+'';
         printf("Case %d:\n%s + %s = %s\n",t,s1,s2,s3);
         if(t!=T)printf("\n");
     }
     return ;
 }

hdu1002