這題 除3 就被NA掉 66%

改 除3.0 就AC了

差別點在哪阿??

求高人指點

我除3 66%

除3.0 33%

#include <iostream>
using namespace ::std;
int main(){
int x,y,r,g,b;
while(cin>>x>>y){
cout<<x<<" "<<y<<endl;
for(int i=0;i<y;i++){
for(int j=0;j<x;j++){
cin>>r>>g>>b;
cout<<(r+g+b)/3.0<<" "<<(r+g+b)/3.0<<" "<<(r+g+b)/3.0<<" ";
}
cout<<endl;
}
}
return 0;
}