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  1. #include <iostream>
  2. int main()
  3. {
  4.     int amount;
  5.     std::cin>>amount;
  6.     while(amount--)
  7.     {
  8.         char one[1000],two[1000];
  9.         std::string result="";
  10.         std::cin>>one>>two;
  11.         int lengthOne,lengthTwo;
  12.         for(lengthOne=0;one[lengthOne]!=0;++lengthOne);
  13.         for(lengthTwo=0;two[lengthTwo]!=0;++lengthTwo);
  14.         if(lengthOne>lengthTwo)
  15.         {
  16.             for(int j=lengthTwo-1,i=lengthOne-1;i>=0;--i,--j)
  17.             {
  18.                 if(j>=0){two[i]=two[j];++lengthTwo;}
  19.                 else two[i]='0';
  20.             }
  21.             two[lengthOne]=0;
  22.             lengthTwo=lengthOne;
  23.         }
  24.         if(lengthOne<lengthTwo)
  25.         {
  26.             for(int j=lengthOne-1,i=lengthTwo-1;i>=0;--i,--j)
  27.             {
  28.                 if(j>=0)one[i]=one[j];
  29.                 else one[i]='0';
  30.             }
  31.             one[lengthTwo]=0;
  32.             lengthOne=lengthTwo;
  33.         }
  34.         int rest=0;
  35.         for(int i=lengthOne-1;i>=0;--i)
  36.         {
  37.             if((int)one[i]%48+(int)two[i]%48+rest<10){result+=(char)((int)one[i]%48+(int)two[i]%48+rest)+'0';rest=0;}
  38.             else {result+=(char)(((int)one[i]%48+(int)two[i]%48+rest)%10)+'0';
  39.                     rest=((int)one[i]%48+(int)two[i]%48+rest)/10;}
  40.         }
  41.         for(int i=result.length()-1;i>=1;--i){if(result[i]=='0')result.pop_back();else break;}
  42.         for(int i=result.length()-1;i>=0;--i){std::cout<<result[i];}
  43.         std::cout<<std::endl;
  44.     }
  45.     return 0;
  46. }
  47.  
Success #stdin #stdout 0s 16064KB
comments (?)
stdin
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3
363636363636 6363636364
1212121212 8787878787878788
1234567 11118765433
stdout
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370000000000
8787880000000000
11120000000
https://ideone.com/lLjplU
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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