Main.cc: In function 'int main()':
Main.cc:9:15: error: invalid types 'float [12][float]' for array subscript
cin>>a[i];
^
Main.cc:10:18: error: invalid types 'float [12][float]' for array subscript
avg=avg+a[i];
^
Main.cc:12:27: warning: unknown conversion type character 0xffffffef in format [-Wformat=]
printf("%¥.2f\n",avg);
^
Main.cc:12:27: warning: too many arguments for format [-Wformat-extra-args]