HDOJ2015 偶数求和

//hdoj2015.cpp#include<iostream>using namespace std;int main(){int n,m;int a[101];while(scanf("%d%d",&n,&m)!=EOF){//if(n<m||n>100||n<=0||m<=0)return 0; if(n<=100){a[0]=0; int count=0;int sum=0; //注意a[0],count,sum的初值都要设为0for(int i=1;i<=n;i++){  //这里i<=n a[i]=a[i-1]+2;count++;sum=sum+a[i];if(count==m){printf("%d",sum/m);count=0;sum=0;if(i<n)printf(" ");}}if(count>0&&count<m)printf("%d\n",sum/count);else printf("\n"); }}return 0;}