1001 A+B Format (20)（20 分） Calculate a + b and output the sum in standard format -- that is, the dig
//by wujie from zhuoyue honor college of hangzhou dianzi university
1001 A+B Format (20)（20 分）
Calculate a + b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less than four digits).
Input
Each input file contains one test case. Each case contains a pair of integers a and b where -1000000 <= a, b <= 1000000. The numbers are separated by a space.
Output
For each test case, you should output the sum of a and b in one line. The sum must be written in the standard format.
Sample Input
-1000000 9Sample Output
-999,991#include
#include
using namespace std;
int main(){
int a, b;
while(cin>>a>>b){
vector
int sum = a+b;
if((0<=sum&&sum<1000)||(sum<0&&sum>=-1000))
{
cout<}
else
{
for(; sum>=1000||sum<=-1000; )
{
int temp = sum%1000;
if(temp<0)
temp = -temp;
tail.push_back(temp);
sum = sum/1000;
}
cout
for(it=tail.rbegin(); it!=tail.rend(); it++)
{
if(*it==0)
{
cout<<","<<"000";
}
else if(*it>0&&*it<=9)
{
cout<<",00"<<*it;
}
else if(*it>9&&*it<=99)
cout<<",0"<<*it;
else cout<<","<<*it;
}
}
}
【1001 A+B Format (20)（20 分） Calculate a + b and output the sum in standard format -- that is, the dig】return 0;
}
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