double average = 0;
int number=0,grace=0;
for(int[] num : scores){
number+=num.length;
for(int n : num){
grace=grace+n;
average=(double)grace/number;
}
System.out.println(average);
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拉普拉斯vs傅里叶
double average = 0;
int number=0,grace=0;
for(int[] num : scores){
number+=num.length;
for(int n : num){
grace=grace+n;
average=(double)grace/number;
}
}
System.out.println(average);