HDOJ1002 A + B Problem II
2007-07-26 15:54
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A + B Problem II
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7815 Accepted Submission(s): 1299
[align=left]Problem Description[/align]
I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.
[align=left]Input[/align]
The first line of the input contains an integer T(1<=T<=20) which means the number of test cases. Then T lines follow, each line consists of two positive integers, A and B. Notice that the integers are very large, that means you should not process them by using 32-bit integer. You may assume the length of each integer will not exceed 1000.
[align=left]Output[/align]
For each test case, you should output two lines. The first line is "Case #:", # means the number of the test case. The second line is the an equation "A + B = Sum", Sum means the result of A + B. Note there are some spaces int the equation. Output a blank line between two test cases.
[align=left]Sample Input[/align]
2 1 2 112233445566778899 998877665544332211
[align=left]Sample Output[/align]
Case 1: 1 + 2 = 3 Case 2: 112233445566778899 + 998877665544332211 = 1111111111111111110
[align=left]Author[/align]
Ignatius.L
#include <iostream>
#include <string>
using namespace std;
int main()
...{
int n;
cin>>n;
for(int i=1;i<=n;i++)
...{
string a,b,c;
cin>>a>>b;
int la=a.length()-1,lb=b.length()-1,jw=0,ta,tb,tt,f=0;
char tc;
while(la>=0||lb>=0)
...{
if(la<0) ta=0;
else ta=a[la]-'0';
if(lb<0) tb=0;
else tb=b[lb]-'0';
tt=jw+ta+tb;
jw=tt/10;
tc=tt%10+'0';
if(tc!='0') f=1;
c+=tc;
la--;lb--;
}
if(jw>0)
...{
f=1;
tc=jw+'0';
c+=tc;
}
if(i!=1)cout<<endl;
cout<<"Case "<<i<<":"<<endl;
cout<<a<<" + "<<b<<" = ";
if(f==1)
...{
for(int i=c.length()-1;i>=0;i--)
cout<<c[i];
cout<<endl;
}
else cout<<0<<endl;
}
return 0;
}
Download the code
http://dl2.csdn.net/down4/20070726/26155242796.cpp
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