一次a;
http://acm.hdu.edu.cn/showproblem.php?pid=2015
偶數求和
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 19451 Accepted Submission(s): 8453
- #include<iostream>
- using namespace std;
- int main()
- {
- int i,j,sum=0,num,times;
- double n,m;
- while(cin>>n>>m)
- {
- if(n/m>(int)(n/m))
- times=(int)(n/m)+1;
- else times=(int)(n/m);
- for(i=1,num=2;i<=times;i++)
- {
- for(j=1;j<=m&&num<=n*2;j++)
- {
- sum+=num;
- num+=2;
- }
- j--;
- cout<<sum/j;
- sum=0;
- if(i!=times)
- cout<<" ";
- else
- cout<<"\n";
- }
- }
- return 0;
- }